Radio Meteor Observation in Japan No.294 April 2026 - English : https://www.iprmo.org - Japanese: https://jpn.iprmo.org ----------------------------------------------------------------------------- Observer : Kenji Fujito Location : Yokkaichi, Mie, Japan (34.96 N, 136.61 E) Frequency: 53.100 MHz (50W JA2SDA, Toyokawa, Japan) Transmitter Location:　 HAM beacon (JA2SDA 50 W CW, 53.100 MHz), Toyokawa, Aichi, Japan Antenna : 2el. Comet HB9CV, zenith Receiver: SMArtRTL-SDRv5 53,099,100MHz Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 3 6 12 7 11 11 8 5 1 9 4 9 7 13 5 3 2 2 1 0 0 1 3 4 02 | 4 5 7 10 10 3 3 4 3 0 2 13 2 4 4 2 0 3 4 0 2 1 3 4 03 | 6 4 5 5 4 5 7 9 8 10%17 15 7 3 8 3 0 1 2 2 2 1 2 7 04 | 7 6 10 12 14 13 9 18 12 8 8 9 16 9 8 6 2 2 1 3 5 0 4 3 05 | 5 4 13 5 12 12 5 3 3 7 3 4 1 2 5 3 1 1 0 1 3 2 5 3 06 | 6 12 6 11 6 9 3 5 6 5 1 8 9 2 10 3 2 2 2 1 2 1 2 7 07 | 8 5 7 14 5 11 8 2 8 4 6 7 7 4 0 1 1 0 1 1 0 1 1 2 08 | 2 5 2 5 4 1 1 7 5 0 7 1 2 3 2 4 0 2 0 2 3 1 1 3 09 | 8 10 6 8 12 5 12 6 3 3 2 4 4 6 5 2 2 2 2 2 4 7 4 11 10 | 16 17 18 17 18 17 18 19 11 9 8 11 10 11 10 3 4 2 2 2 7 2 6 8 11 | 18 12 22 19 6 8 18 22 16 3 11 6 6 3 3 3 0 4 0 2 0 3 4 8 12 | 11 9 17 5 8 6 6 4 4 6 6 12 5 2 3 0 3 2 1 3 3 3 4 8 13 | 7 10 8 9 8 11 5 4 3 9 4 7 6 8 0 3 0 1 1 1 2 0 2 3 14 | 8 4 10 10 8 3 7 8 6 4 8 8 3 6 5 3 2 1 2 2 5 4 4 3 15 | 8 9 14 20 15 12 7 7 4 9 9 13 5 %7 6 4 4 4 4 2 2 0 5 5 16 | 10 10 12 16 15 8 9 5 7 6 5 14 4 5 4 1 0 0 0 0 1 4 4 2 17 | 0 10 7 2 7 5 2 5 11 12 4 5 6 6 5 2 2 2 2 2 2 1 4 6 18 | 15 10 15 8 10 13 7 8 4 4 3 6 6 4 2 0 2 0 1 2 2 5 5 5 19 | 4 11 11 10 9 9 7 14 8 5 4 9 4 7 3 6 3 2 1 1 2 4 3 2 20 | 9 9 5 12 14 4 15 8 6 5 3 4 5 9 1 3 2 1 2 2 2 4 5 6 21 | 11 12 6 7 9 10 7 4 6 4 5 4 7 3 1 0 4 0 1 2 0 2 4 1 22 | 7 5 10 8 2 7 3 3 0 4 2 6 3 4 5 1 1 0 3 2 0 6 4 5 23 | 7 11 4 4 3 8 5 8 18 12 15 14 13 11 6 7 1 1 0 0 2 7 6 7 24 | 15 15 18 17 10 8%13 7 4 9 9 4 9 8 4 3 0 1 0 3 2 4 5 7 25 | 7 10 13 21 18 14 17 7 9 6 12 9 12 15 4 4 2 1 2 1 1 4 2 14 26 | 6 12 8 16 6 11 3 12 10 7 7 8 8 5 4 1 3 0 2 1 1 4 5 8 27 | 6 9 20 11 7 6 7 8 8 7 6 5 5 9 4 3 0 0 0 0 1 2 2 3 28 | 2 4 3 3 8 4 8 5 2 5 5 8 7 5 2 3 3 1 1 0 1 2 3 2 29 | 1 8 6 11 7 10 5 6 3 3 5 4 4 6 1 2 0 0 1 0 2 2 3 5 30 | 2 3 5 5 9 5 3 4 4 7 10 4 13 16 4 4 1 2 1 1 3 4 6 9 ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST Echoes longer than 20 seconds Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 02 | 1 03 | 1 04 | 1 05 | 06 | 1 07 | 08 | 1 09 | 10 | 11 | 12 | 13 | 14 | 15 | 1 1 1 16 | 17 | 18 | 19 | 1 20 | 2 21 | 22 | 23 | 1 24 | 2 1 25 | 1 1 26 | 27 | 1 28 | 29 | 30 | ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST note: --: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- Observer : Tuboi Observatory[TSUBOI MASAKI] Location : Asakitaku,Hiroshimashi,JAPAN (34.45 N, 132.50 E) Frequency: 53.372 MHz Antenna : 2el. HB9CV Az:60deg. horizon. Transmitter Location: HAM beacon (JE3AKE) (50W CW, 53.372MHz) Receiver: R820T2-SDR+TCXO SDRRadio Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 0 1 0 5 4 1 3 2 1 0 4 2 4 2 3 0 2 0 0 0 0 0 1 0 02 | 1 1 2 1 4 0 2 2 2 5 2 3 1 2 0 2 1 1 0 2 3 4 1 1 03 | 2 3 4 3 4 1 2 4 2 2 0 0 1 4 2 1 0 0 1 2 0 2 1 3 04 | 1 3 5 1 1 1 4 4 2 0 2 1 0 0 1 2 1 1 1 1 1 3 2 2 05 | 0 0 1 2 1 4 2 1 2 5 %3 1 1 1 4 0 1 0 0 0 1 2 2 0 06 | 0 0 0 1 0 4 0 0 1 1 3 3 2 1 1 0 0 1 2 1 4 0 3 0 07 | 3 1 0 2 1 2 3 0 2 0 0 2 %0 IF 3 2 0 2 2 0 6 2 0 4 08 | 1 2 3 2 1 3 2 4 2 1 2 4 1 0 2 5 1 0 1 4 6 1 0 5 09 | 3 1 1 2 1 2 1 2 1 2 3 3 2 1 3 0 0 0 2 1 1 2 0 0 10 | 1 0 0 2 3 0 0 3 4 2 3 7 3 2 2 1 2 0 1 4 1 %0 3 5 11 | 1 %0 3 0 2 2 2 1 1 0 7 8 4 2 1 %2 IF %2 2 0 5 1 4 1 12 | 5 3 2 4 5 2 1 3 3 1 4 2 1 1 3 2 %2 0 2 1 3 2 0 2 13 | 1 1 3 2 5 1 0 0 0 1 2 0 2 2 4 3 1 1 3 0 6 4 2 6 14 | 4 2 3 3 1 2 2 2 3 4 2 5 1 1 2 2 0 2 2 0 1 2 4 3 15 | 5 5 3 2 0 4 1 3 0 2 1 2 2 3 1 1 1 0 1 0 0 5 1 3 16 | 2 2 6 1 1 0 6 3 5 4 %0 1 0 0 %0 IF 2 1 0 3 19 10 6 3 17 | 5 1 3 0 2 4 1 6 IF 3 2 0 5 5 3 3 1 0 2 2 12 %0 7 0 18 | 2 0 0 3 1 4 2 1 2 2 2 6 2 0 1 4 0 2 3 4 11 1 9 7 19 | 9 2 6 IF IF %4 3 3 1 0 0 4 2 2 3 1 0 0 0 3 14 7 2 9 20 | 5 0 0 0 0 3 0 2 3 2 2 2 %0 %6 1 1 1 0 1 1 5 3 14 2 21 | 1 0 3 1 0 2 2 0 0 3 2 5 0 0 0 0 2 0 0 0 2 4 5 4 22 | 2 6 1 3 2 1 9 8 2 1 0 6 3 2 3 0 2 2 0 0 1 0 5 4 23 | 2 3 2 3 2 4 7 5 5 3 2 1 2 1 2 1 2 1 0 0 0 2 6 4 24 | 3 1 5 2 2 4 2 4 7 2 6 2 0 3 2 1 2 0 2 1 2 2 4 6 25 | 2 4 0 2 2 2 1 6 5 3 3 3 2 3 2 3 1 0 1 %1 %5 0 2 1 26 | 0 4 0 3 1 0 5 0 2 2 1 4 4 2 1 4 1 2 0 1 1 0 2 3 27 | 1 1 3 5 4 3 1 1 1 3 6 3 0 6 4 2 0 1 4 1 6 0 4 21 28 | 2 3 0 2 4 4 5 0 0 4 2 3 4 4 1 0 3 2 0 2 IF %8 IF%10 29 | 7 1 3 2 2 4 2 2 0 2 0 4 1 2 0 3 3 1 0 5%11 7 IF %5 30 | 2 3 2 3 3 2 4 3 3 1 4 2 2 1 3 2 1 2 0 0 3 0 2 1 ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST Echoes longer than 20 seconds Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 1 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 1 1 19 | 20 | 21 | 22 | 1 23 | 1 24 | 25 | 26 | 1 27 | 28 | 29 | 1 30 | ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST Frequency: 112.000 MHz Transmitter Location: Komatsu-VOR Beacon for Air-flight Antenna : 5el-Yagi Az60deg. Receiver: R820T2 & SDR+TCXO SDRradio Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 1 0 1 4 0 3 2 2 2 2 2 1 1 3 5 4 4 1 0 1 3 1 1 1 02 | 4 2 1 1 1 1 5 3 3 3 4 3 4 2 0 2 2 0 0 2 4 1 2 2 03 | 2 1 1 0 0 2 1 3 3 2 4 2 3 0 0 1 4 2 0 3 1 1 0 1 04 | 3 0 0 1 2 1 1 2 1 3 1 2 5 0 1 0 1 1 0 0 2 0 2 0 05 | 2 1 2 1 1 1 2 4 2 6 4 3 2 1 %0 2 0 0 1 0 2 2 0 2 06 | 4 2 1 2 1 0 4 4 3 2 4 3 2 2 5 3 2 0 2 0 2 0 2 3 07 | 1 3 0 1 2 1 0 3 1 2 5 2 1 2 1 4 3 %0 %1 1 1 4 0 1 08 | 2 3 0 1 1 3 2 6 7 0 2 1 0 1 2 0 3 0 1 0 0 4 1 3 09 | 5 5 1 0 2 0 4 0 2 3 3 2 2 2 2 2 2 1 2 1 1 1 2 0 10 | 3 1 0 1 1 6 4 1 4 3 3 1 3 0 1 2 2 1 3 1 2 2 0 1 11 | 3 5 1 3 1 5 1 2 4 3 %4 1 0 IF IF IF 1 5 0 0 0 1 2 3 12 | 4 0 0 0 1 5 2 1 2 0 4 1 3 4 1 4 2 1 1 2 0 3 1 1 13 | 2 4 1 1 4 5 4 1 1 0 1 2 %5 2 3 5 0 0 2 1 4 3 0 1 14 | 2 8 1 1 1 1 0 1 4 2 2 2 1 4 2 0 5 1 1 1 3 2 2 3 15 | 3 2 1 0 2 3 1 4 0 2 0 2 1 3 1 3 4 0 1 0 3 2 2 %2 16 | %0 %2 0 2 1 1 4 5 1 1 3 0 0 1 0 0 3 2 0 0 3 1 0 7 17 | 2 1 2 1 1 1 0 1 1 1 6 0 2 2 0 1 3 2 0 0 2 3 4 1 18 | 2 3 1 1 2 2 3 2 4 2 7 3 1 1 4 3 4 2 3 2 0 0 6 1 19 | 3 1 2 0 2 2 0 4 3 2 0 0 4 1 4 0 0 2 1 1 0 0 4 2 20 | 2 4 5 1 4 2 1 6 2 1 3 1 0 3 5 2 7 1 2 2 0 1 0 2 21 | 3 2 0 0 1 0 0 3 2 1 2 2 0 0 0 1 3 0 0 0 0 1 0 1 22 | 3 1 1 2 2 2 1 1 5 5 5 5 2 7 1 4 3 1 2 2 0 2 3 2 23 | 1 3 3 1 1 3 6 2 2 2 2 6 2 3 1 2 0 0 2 1 1 1 2 1 24 | 3 2 3 3 2 1 3 1 3 3 6 4 2 5 3 0 3 3 1 1 3 2 4 6 25 | 6 2 2 0 1 1 3 4 4 6 3 0 0 1 0 0 5 2 2 1 0 0 4 2 26 | 5 2 %2 2 4 0 2 4 2 0 5 1 3 2 1 2 1 2 0 0 5 1 2 2 27 | 5 1 3 1 2 3 3 1 0 1 2 2 1 1 5 1 %4 3 0 2 1 2 0 4 28 | 2 2 0 0 3 2 5 6 2 4 4 0 0 1 %2 4 5 3 1 1 1 0 1 2 29 | 5 0 0 4 1 2 3 1 4 3 2 2 1 0 3 3 5 0 1 1 0 2 0 2 30 | 1 0 1 1 1 2 3 0 5 2 3 2 5 1 3 2 1 4 4 1 2 0 1 0 ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST Echoes longer than 20 seconds Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 1 02 | 1 03 | 04 | 05 | 06 | 07 | 08 | 1 1 09 | 10 | 1 11 | 1 12 | 13 | 14 | 1 15 | 1 16 | 1 17 | 1 18 | 1 1 19 | 20 | 1 21 | 22 | 1 1 2 23 | 24 | 1 1 25 | 1 1 1 26 | 27 | 1 28 | 1 29 | 30 | 1 ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST note: --: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- Observer :Hirofumi Sugimoto Location : Hachioji, Tokyo, Japan (35.654 N, 139.319 E) Frequency: 53.372 MHz Transmitter Location: HAM beacon (JE3AKE) (50W-100W CW, 53.372MHz) Antenna : HB9CV 3el. Az:240deg. horizon. Receiver: RTL-SDR HDSDR Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 19 17 13 26 16 19 24 25 25 24 12 14 11 7 4 5 8 10 3 9 16 14 21 19 02 | 23 21 23 18 22 19 21 24 29 14 10 11 9 6 3 %7 3 2 5 8 11 18 19 18 03 | 21 17 18 17 27 22 27 20 20%19 10 6 8 3 1 5 5 9 5 6 6 7 12 21 04 | 8 13 15 18 13 21 20 21 20 14 10 8 8 9 6 5 8 6 7 3 12 12 14 20 05 | 19 7 12 21 21 29 23 19 20 16 10 12 6 10 6 4 5%10 5 6 14 12 17 16 06 | 17 14 13 13 25 13 20 20 21 17 12 11 8 4 3 8 4 7 3 5 10 14 23 18 07 | 18 17 14 14 16 20 14 22 19 18 7 10 14 6 %2 %6 5 4 4 7 4 21 14 23 08 | 9 18 11 17 14 26 19%20 -- 20 4 8 13 10 7 2 2 8 7 6 6 12 4 11 09 | 8 9 12 15 6 16 14 17 18 12 7 6 5 3 9 8 6 9 10 6 15 7 7 9 10 | 7 4 10 10 7 17 8 6 8 17 7 5 3 4 5 7 3 2 3 6 5 15 13 6 11 | 14 10 10 14 13 11 14 12 20 13 13 10 11 4 11 9 8 6 3 7 10 13 8 7 12 | 12 6 16 10 11 20 10 11 16 9 9 13 14 8 9 11 11 7 2 5 11 10 8 6 13 | 10 11 8 10 19 11 11 19 20 10 11 8 1 10 6 4 6 6 9 9 5 8 9 5 14 | 11 9 11 11 15 9 22 14%17 6 5 2 5 3 3 4 0 3 5 5 2 8 6 8 15 | 9 8 10 9 8 15 13 11 14 17 %7 5 8 6 3 %1 3 9 2 4 5 9 12 6 16 | 8 13 10 10 16 7 10 8 11 7 10 9 7 7 7 5 4 2 7 3 0 6 14 6 17 | 10 10 13 11 15 8 9 13 20 10 5 5 3 2 3 6 3 1 3 3 7 6 11 9 18 | 8 10 7 11 18 9 11 14 12 7 6 7 8 4 4 2 2 6 4 2 4 4 6 4 19 | 14 13 10 9 10 14 10 10 9 8 7 5 2 2 1 2 3 2 0 0 2 6 6 8 20 | 8 10 7 8 9 11 19 13 10 11 8 3 5 5 9 5 7 0 4 6 9 7 7 10 21 | 7 7 4 14 11 12 14 12 13 5 10 8 %6 3 9 4 5 2 4 3 7 9 10 11 22 | 9 11 20 21 13 12 17 13 17 5 8 6 5 5 6 3 4 3 7 2 4 7 7 14 23 | 15 20 24 24 15 20 15 14 14 21 7 11 5 7 1 2 5 2 2 4 4 10 20 12 24 | 10 13 7 11 16 14 12 14 21 12 9 7 5 7 9 3 1 3 6 6 9 5 4 5 25 | 9 10 11 11 7 12 19 17 15 10 6 7 6 2 9 4 5 5 7 8 4 6 17 8 26 | 9 12 4 17 12 17 20 7 14 6 8 7 9 5 5 4 5 2 3 4 5 4 10 10 27 | 11 10 10 9 6 12 16 13 15 11 10 6 3 9 6 4 2 4 3 5 7 12 12 9 28 | 6 13 12 9 5 18 15 17 15 13 7 2 3 4 4 1 2 6 2 5 4 6 6 5 29 | 4 9 7 9 12 14 21 19 18 16 7 10 1 11 4 7 5 1 5 2 6 11 9 10 30 | 7 9 5 12 15 13 15 17 15 10 8 9 5 5 6 4 2 4 8 6 6 9 7 8 ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST Echoes longer than 20 seconds Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 1 1 02 | 03 | 1 1 04 | 1 05 | 1 1 06 | 1 07 | 08 | 2 09 | 1 10 | 11 | 1 1 12 | 1 1 13 | 1 14 | 15 | 1 1 1 16 | 17 | 18 | 1 1 19 | 20 | 1 2 21 | 22 | 1 1 23 | 1 1 24 | 1 1 1 1 25 | 1 2 1 26 | 1 27 | 1 1 28 | 1 29 | 2 30 | 1 ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST Frequency: 115.300 MHz Transmitter Location: Wakkanai-VOR at Wakkanai city (141.8 E, 45.4 N) VOR Beacon for Air-flight (200W 30Hz AM, 115.300 MHz) Antenna : 5el-Yagi Horizon Receiver: AIRSPYmini Method : by using SpecrumLab software, manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 2 3 3 0 3 0 4 %2 3 4 6 6 2 3 3 3 3 3 1 2 2 6 6 4 02 | 2 5 3 4 1 5 4 11 7 5 1 3 2 1 3 -- -- %2 2 4 1 3 3 6 03 | 5 4 4 5 4 3 3 6 9 10 7 4 2 2 4 8 2 4 1 1 1 1 5 1 04 | 3 4 0 7 9 4 4 7 4 8 5 0 1 4 2 1 2 2 2 4 3 6 6 2 05 | 2 4 3 4 3 4 4 7 5 7 2 2 3 5 4 3 1 2 2 4 5 4 4 4 06 | 7 3 5 8 1 6 2 6 12 6 4 1 4 3 2 2 4 3 0 3 2 5 3 2 07 | 6 2 1 5 4 3 2 8 8 6 2 2 3 3 3 2 2 3 2 5 4 5 5 %7 08 | 6 5 4 5 4 5 5%11 -- 13 11 12 7 7 6 5 2 4 4 5 8 8 9 9 09 | 12 5 4 9 9 3 12 9 8 8 6 5 6 7 6 6 3 3 1 4 4 4 4 5 10 | 4 5 5 9 8 12 7 5 8 4 5 5 4 4 1 2 1 2 5 5 8 8 4 7 11 | 5 5 4 4 3 1 7 5 13 11 5 3 0 2 3 3 1 1 4 4 5 4 7 8 12 | 8 7 11 2 4 8 7 6 5 10 4 5 4 6 4 1 1 3 3 3 0 7 7 6 13 | 7 6 2 3 5 5 9 6 9 1 7 4 4 4 2 1 2 0 2 3 1 8 4 3 14 | 8 4 8 3 6 7 7 8 -- --%12 %6 -- 4 5 5 3 5 7 3 7 10 9 10 15 | 10 5 8 6 10 7 13 4 15 9 5 10 %8 3 4 2 4 6 4 9 6 7 9 3 16 | 11 8 6 5 14 7 8 16 5 11 -- -- -- -- -- -- %1 4 2 3 7 7 10 11 17 | 8 8 3 5 4 4 8 12 8 9 2 8 8 2 6 2 4 3 6 3 4 9 6 5 18 | 5 5 2 6 5 6 8 13 9 10 6 8 7 5 6 2 3 5 3 4 5 9 8 3 19 | 8 8 4 6 6 8 %4%14 6 7 7 5 4 3 3 1 2 6 5 6 7 4 9 13 20 | 4 1 5 3 10 8 9 6 12 5 12 1%13%11 %6 4 2 6 7 6 6 7 6 9 21 | 8 4 6 8 8 11 11 11 12 14 5 5 5 2 -- 3 2 %0 -- -- -- -- %6 12 22 | 4 6 7 10 7 7 9 6 15 6 9 4 5 4 5 2 4 2 3 3 3 8 3 8 23 | 10 16 9 5 6 13 11 9 8 6 5 3 3 9 3 0 4 5 3 4 8 4 7 17 24 | 11 10 10 15 8 12 14 23 16 6 8 %4 3 6 2 3 1 2 3 6 4 9 9 14 25 | 9 8 8 13 8 8 11 12 20 15 13 9 10 7 10 6 2 5 8 %8 -- 8 6 10 26 | 10 9 10 8 9 11 12 9 6 10 5 4 7 3 5 2 4 3 3 2 4 7 4 6 27 | 2 6 5 5 5 8 10 12 6 8 7 3 6 10 2 4 3 8 4 9 4 6 7 7 28 | 3 7 3 2 9 4 14 9 7 7 12 12 9 5 6 3 2 3 5 3 3 4 7 7 29 | 4 2 7 8 6 5 5 9 7 6 10 4 6 6 1 4 3 4 3 2 1 4 6 12 30 | 6 8 5 4 7 6 14 8 7 5 5 5 5 6 4 3 2 1 2 2 4 7 6 5 ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST Echoes longer than 20 seconds Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 02 | 03 | 04 | 05 | 06 | 07 | 1 08 | 1 09 | 10 | 11 | 12 | 1 13 | 1 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 1 1 24 | 25 | 1 26 | 27 | 28 | 29 | 30 | ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST note: --: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- Observer :Matsuda Masahiko Location : Kawaguchi-city SAITAMA JAPAN(139.71E, 35.82N) Frequency: 53.372 MHz Transmitter Location: HAM beacon (JE3AKE) (50W-100W CW, 53.372MHz) Antenna : 2ele HB9CV Ant. 12mH WEST Receiver: ICOM IC-R75 USB -- Total number of echoes -- Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 0 2 0 2 1 2 0 2 4 2 0 1 1 0 1 3 3 1 0 1 0 1 0 1 02 | 2 1 2 0 1 2 1 3 2 1 0 1 0 2 2 0 0 1 1 0 0 0 0 2 03 | 1 0 0 3 3 3 0 3 3 0 0 0 2 1 1 0 0 1 2 1 2 0 0 0 04 | 0 0 0 1 1 2 3 2 2 0 0 0 2 2 0 2 0 1 0 1 2 0 2 2 05 | 0 0 0 1 2 3 0 2 1 2 1 1 1 0 0 2 1 1 0 1 5 0 1 1 06 | 1 2 0 1 2 0 3 2 1 1 1 0 0 0 1 1 0 0 0 2 2 0 1 0 07 | 1 1 1 2 0 2 0 3 2 1 0 1 0 1 0 0 0 0 2 2 0 2 0 0 08 | 0 1 1 0 2 4 5 5 4 2 0 0 0 0 0 0 1 0 1 3 1 2 2 0 09 | 1 1 0 5 0 1 3 1 2 2 2 0 1 3 0 0 1 2 0 1 2 2 1 1 10 | 0 0 1 1 2 2 3 2 0 1 0 1 1 0 2 1 1 1 0 1 0 2 3 2 11 | 0 0 0 1 1 1 1 0 3 1 1 0 0 0 0 0 2 0 1 1 2 1 2 0 12 | 1 0 1 1 1 3 1 0 1 1 0 0 0 0 0 0 0 1 0 3 2 2 0 1 13 | 1 1 1 0 0 1 2 3 2 0 0 1 3 1 3 0 1 0 0 0 0 0 1 0 14 | 1 4 0 1 3 1 1 0 2 0 0 1 1 2 0 1 0 1 0 0 0 1 1 1 15 | 1 0 1 0 0 0 0 2 2 2 2 1 3 2 0 1 0 3 2 1 2 2 1 2 16 | 1 1 1 0 2 2 0 1 0 1 2 4 0 0 1 1 1 2 2 1 0 0 1 1 17 | 2 2 1 0 1 2 2 1 1 1 0 1 2 0 1 1 1 0 1 0 1 2 3 0 18 | 2 2 0 3 0 1 4 0 2 0 1 1 4 0 0 0 0 1 2 1 0 0 0 1 19 | 2 1 1 1 1 0 1 2 2 1 1 0 0 0 0 1 0 1 1 0 2 0 2 0 20 | 1 3 1 2 0 3 9 0 2 1 1 0 0 1 0 0 0 0 1 0 3 0 1 0 21 | 0 0 0 2 0 1 1 2 3 1 1 1 2 1 0 0 1 0 0 1 0 0 0 0 22 | 0 0 0 1 0 1 2 0 2 1 0 1 0 2 1 1 1 1 4 1 3 3 1 4 23 | 6 3 1 1 2 6 3 2 2 5 0 3 1 0 1 2 2 1 2 1 3 0 8 6 24 | 4 2 1 2 2 0 3 4 1 0 1 1 2 0 2 0 1 2 2 1 0 1 2 0 25 | 4 2 1 3 1 5 3 2 4 0 1 0 0 1 1 1 1 0 0 0 1 1 2 0 26 | 0 4 1 2 4 7 5 2 2 1 1 0 0 0 1 0 0 0 2 0 1 1 3 3 27 | 0 1 2 1 1 3 4 1 1 0 1 1 2 4 1 1 3 2 2 3 1 2 0 0 28 | 0 1 2 5 3 6 2 3 2 0 1 1 1 0 2 1 0 1 1 2 0 0 0 0 29 | 0 0 1 5 1 4 2 5 4 1 0 3 0 2 2 1 2 1 1 1 0 2 0 3 30 | 2 4 2 3 4 4 3 4 2 3 1 3 1 1 2 0 0 1 2 3 2 2 2 2 ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST Echoes longer than 20 seconds Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 02 | 03 | 1 2 04 | 1 05 | 06 | 2 07 | 08 | 1 09 | 10 | 11 | 1 1 12 | 13 | 1 14 | 1 15 | 1 16 | 17 | 18 | 19 | 1 1 20 | 1 1 21 | 22 | 23 | 1 1 24 | 1 1 1 1 25 | 1 2 1 26 | 27 | 1 1 28 | 1 29 | 1 1 30 | 1 2 1 1 ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST note: --: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- Observer : Nobuo Katsura Location : Iwaki, Fukushima, Japan (37.00 N, 140.50 E) Frequency: 53.100 MHz Transmitter Location: HAM beacon (50W JA2SDA, Toyokawa, Japan) Antenna : 1el. DP Hand Mide 6mH＋RFamp Receiver: SDR 820T2 SDR#　PC HPdc7900　win11 -- Total number of echoes -- Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|JST ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 01 | 19 | 17 | 19 | 14 | 20 | 24 | 12 | 24 | 22 | 16 | 13 | 12 | 16 | 8 | 8 | 7 | 11 | 6 | 8 | 2 | 11 | 7 | 15 | 15 | 02 | 14 | 13 | 9 | 15 | 15 | 16 | 16 | 17 | 13 | 11 | 16 | 7 | 9 | 9 | 6 | 2 | 0 | 1 | 0 | 3 | 4 | 5 | 2 | 10 | 03 | 8 | 15 | 14 | 14 | 14 | 16 | 21 | 13 | 20 | 10 | 11 | 8 | 8 | 8 | 4 | 4 | 3 | 6 | 3 | 6 | 6 | 5 | 12 | 14 | 04 | 17 | 11 | 15 | 9 | 7 | 22 | 17 | 8 | 14 | 13 | 5 | 3 | 2 | 6 | 3 | 1 | 2 | 3 | 4 | 5 | 5 | 7 | 15 | 7 | 05 | 10 | 9 | 14 | 8 | 13 | 8 | 11 | 12 | 10 | 9 | 15 | 3 | 2 | 5 | 5 | 5 | 6 | 2 | 1 | 7 | 7 | 15 | 8 | 7 | 06 | 15 | 9 | 15 | 15 | 12 | 13 | 24 | 23 | 11 | 17 | 7 | 7 | 6 | 10 | 5 | 9 | 3 | 4 | 3 | 6 | 7 | 11 | 18 | 14 | 07 | 19 | 23 | 21 | 24 | 8 | 19 | 16 | 31 | IF | 17 | 10 | 24 | 10 | 15 | 8 | 5 | 6 | 6 | 2 | 4 | 4 | 5 | 9 | 2 | 08 | 5 | 5 | 2 | 8 | 10 | 8 | 8 | 15 | 14 | 8 | 3 | 3 | 5 | 4 | 5 | 3 | 2 | 2 | 0 | 4 | 9 | 15 | 10 | 9 | 09 | 7 | 6 | 13 | 7 | 7 | 11 | 15 | 7 | 13 | 8 | 4 | 6 | 8 | 6 | 4 | 8 | 2 | 2 | 1 | 4 | 3 | 5 | 13 | 5 | 10 | 6 | 9 | 16 | 7 | 7 | 3 | 4 | 9 | 14 | 11 | 8 | 7 | 15 | 8 | 9 | 3 | 3 | 0 | 0 | 6 | 5 | 4 | 4 | 11 | 11 | 17 | 8 | 8 | 15 | 12 | 11 | 16 | 13 | 15 | 21 | 10 | 13 | 11 | 8 | 4 | 5 | 6 | 3 | 0 | 6 | 8 | 12 | 17 | 14 | 12 | 12 | 15 | 17 | 20 | 22 | 23 | 14 | 22 | 21 | 10 | 8 | 13 | 8 | 5 | 5 | 10 | 6 | 2 | 2 | 3 | 9 | 6 | 6 | 12 | 13 | 13 | 8 | 5 | 12 | 15 | 17 | 14 | 9 | 9 | 7 | 8 | 3 | 5 | 6 | 14 | 5 | 4 | 4 | 4 | 5 | 6 | 9 | 9 | 13 | 14 | 16 | 19 | 17 | 15 | 18 | 9 | 13 | 18 | 15 | 14 | 11 | 14 | 9 | 7 | 8 | 3 | 0 | 2 | 2 | 7 | 3 | 7 | 10 | 6 | 15 | 15 | 12 | 12 | 17 | 7 | 9 | 13 | 16 | 12 | 12 | 5 | 7 | 9 | 2 | 7 | 6 | 4 | 5 | 4 | 3 | 6 | 10 | 13 | 16 | 16 | 12 | 18 | 14 | 19 | 10 | 16 | 14 | 7 | 9 | 5 | 12 | 5 | 5 | 5 | 6 | 6 | 2 | 3 | 4 | 2 | 7 | 14 | 11 | 9 | 17 | 11 | 6 | 14 | 7 | 12 | 15 | 8 | 16 | 5 | 4 | 7 | 4 | 8 | 5 | 8 | 2 | 6 | 1 | 2 | 4 | 4 | 8 | 16 | 18 | 18 | 12 | 21 | 11 | 9 | 8 | 17 | 14 | 23 | 9 | 12 | 9 | 4 | 5 | 4 | 1 | 1 | 2 | 0 | 2 | 4 | 4 | 5 | 2 | 2 | 19 | 15 | 7 | 5 | 7 | 　6 | 10 | IF | 5 | 3 | 8 | 8 | 8 | 8 | 11 | 3 | 5 | 1 | 4 | 4 | 4 | 3 | 8 | 9 | 6 | 20 | 11 | 21 | 20 | 17 | 12 | 21 | 24 | 23 | 12 | 13 | 3 | 6 | 8 | 2 | 3 | 4 | 2 | 4 | 2 | 1 | 6 | 10 | 6 | 7 | 21 | 7 | 7 | 10 | 8 | 8 | 3 | 9 | 19 | 24 | 5 | 5 | 10 | 3 | 4 | 3 | 1 | 3 | 1 | 0 | 4 | 5 | 5 | 8 | 9 | 22 | 12 | 15 | 9 | 5 | 12 | 8 | 8 |　14 | 7 | IF | 4 | 4 | 4 | 8 | 9 | 5 | 2 | 0 | 2 | 3 | 6 | 7 | 6 | 9 | 23 | 8 | 21 | 11 | 10 | 20 | 14 | 19 | 19 | 21 | 18 | 10 | 5 | 15 | 10 | 3 | 5 | 6 | 3 | 3 | 2 | 5 | 9 | 18 | 17 | 24 | 23 | 24 | 11 | 14 | 23 | 24 | 24 | 23 | 15 | 13 | 7 | 5 | 7 | 0 | 6 | 5 | 0 | 1 | 0 | 0 | 2 | 1 | 0 | 7 | 25 | 4 | 2 | 3 | 7 | 12 | 3 | 1 | 4 | 14 | 11 | 9 | 5 | 9 | 5 | 5 | 10 | 3 | 2 | 6 | 4 | 6 | 7 | 7 | 9 | 26 | 8 | 10 | 6 | 7 | 18 | 12 | 12 | 8 | 16 | 　4 | 6 | 10 | 6 | 6 | 8 | 7 | 7 | 2 | 6 | 4 | 3 | 9 | 12 | 14 | 27 | 15 | 10 | 17 | 11 | 10 | 26 | 17 | 21 | 17 | 17 | 7 | 8 | 8 | 15 | 5 | 5 | 10 | 5 | 3 | 2 | 12 | 6 | 12 | 20 | 28 | 18 | 28 | 11 | 15 | 13 | 19 | 12 | 16 | 19 | 17 | 5 | 6 | 11 | 8 | 4 | 5 | 6 | 4 | 8 | 7 | 8 | 6 | 14 | 9 | 29 | 12 | 17 | 17 | 22 | 17 | 22 | 19 | 24 | 13 | 14 | 7 | 14 | 17 | 7 | 7 | 4 | 4 | 5 | 4 | 4 | 3 | 7 | 7 | 8 | 30 | 13 | 16 | 8 | 14 | 12 | 14 | 18 | 19 | 20 | 8 | 8 | 4 | 15 | 10 | 11 | 2 | 3 | 2 | 1 | 1 | 3 | 4 | 14 | 11 | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|JST Echoes longer than 20 seconds Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|JST ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 01 | 0 | 2 | 0 | 0 | 1 | 4 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02 | 1 | 0 | 0 | 0 | 0 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 03 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 04 | 1 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 06 | 0 | 0 | 0 | 0 | 2 | 0 | 4 | 1 | 0 | 3 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 07 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 08 | 0 | 0 | 0 | 1 | 1 | 2 | 0 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 09 | 0 | 0 | 1 | 1 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 12 | 0 | 0 | 0 | 1 | 3 | 4 | 1 | 3 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 13 | 0 | 1 | 0 | 1 | 0 | 1 | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 0 | 0 | 0 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 1 | 0 | 2 | 2 | 0 | 0 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 1 | 16 | 0 | 3 | 0 | 1 | 1 | 2 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 17 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 6 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 1 | 0 | 3 | 3 | 4 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 20 | 0 | 0 | 1 | 0 | 0 | 4 | 2 | 4 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 22 | 1 | 1 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 23 | 0 | 5 | 0 | 0 | 5 | 1 | 3 | 2 | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 24 | 3 | 0 | 1 | 0 | 4 | 3 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 1 | 0 | 1 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 29 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 3 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 0 | 2 | 0 | 2 | 3 | 1 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|JST note: ???: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- Observer : Hiroshi Suzuki Location : Soma, Fukushima, Japan (37.79 N, 140.98 E) Frequency: 52.905 MHz --> 52.490MHz Transmitter Location:　 HAM beacon (50 W CW, 52.905 MHz), Higashimurayama, Tokyo, Japan --> HAM beacon (50 W CW, 52.490 MHz), Tachikawa, Tokyo, Japan Antenna : HB9CV (3el.) horizon, dir: south Receiver: RTL-SDR Method : by using HROFFT software (by Kazuhiko Ohkawa) -- Total number of echoes -- Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|JST ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 01 | 1 | 3 | 4 | 2 | 3 | 3 | 4 | 7 | 3 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 7 | 4 | 4 | 02 | 4 | 2 | 3 | 3 | 1 | 2 | 1 | 5 | 2 | 4 | 4 | 1 | 6 | 6 | 2 | 4 | 2 | 3 | 1 | 2 | 6 | 2 | 2 | 5 | 03 | 0 | 7 | 5 | 2 | 4 | 3 | 4 | 8 | 7 | 4 | 3 | 4 | 3 | 1 | 1 | 2 | 2 | 2 | 3 | 1 | 3 | 3 | 2 | 7 | 04 | 9 | 7 | 6 | 4 | 3 | 2 | 0 | 4 | 3 | 3 | 4 | 1 | 2 | 2 | 1 | 1 | 3 | 0 | 1 | 4 | 7 | 1 | 9 | 5 | 05 | 9 | 6 | 8 | 0 | 7 | 9 | 6 | 3 | 4 | 4 | 7 | 10 | 1 | 4 | 2 | 4 | 3 | 1 | 1 | 3 | 3 | 4 | 6 | 6 | 06 | 3 | 3 | 9 | 9 | 6 | 4 | 5 | 2 | 1 | 4 | 1 | 3 | 1 | 2 | 5 | 0 | 2 | 5 | 0 | 2 | 1 | 4 | 3 | 5 | 07 | 1 | 0 | 9 | 1 | 7 | 7 | 9 | 17 | 7 | 11 | 6 | 3 | 11 | 10 | 6 | 5 | 2 | 0 | 2 | 1 | 2 | 1 | 0 | 0 | 08 | 2 | 2 | 0 | 0 | 1 | 5 | 5 | 6 | 8 | 3 | 1 | 1 | 3 | 1 | 1 | 3 | 1 | 1 | 3 | 5 | 1 | 1 | 1 | 0 | 09 | 3 | 2 | 2 | 1 | 0 | 6 | 6 | 11 | 4 | 1 | 1 | 4 | 5 | 1 | 2 | 5 | 3 | 7 | 4 | 1 | 2 | 5 | 4 | 7 | 10 | 5 | 4 | 13 | 12 | 7 | 7 | 6 | 9 | 4 | 5 | 7 | 4 | 5 | 8 | 10 | 2 | 2 | 8 | 11 | 4 | 1 | 4 | 9 | 11 | 11 | 4 | 7 | 6 | 12 | 10 | 17 | 4 | 4 | 8 | 8 | 5 | 3 | 0 | 9 | 2 | 1 | 1 | 2 | 2 | 3 | 4 | 4 | 5 | 1 | 12 | 3 | 2 | 5 | 2 | 4 | 6 | 7 | 5 | 1 | 1 | 5 | 2 | 0 | 2 | 0 | 0 | 3 | 1 | 2 | 1 | 4 | 2 | 3 | 3 | 13 | 1 | 0 | 1 | 2 | 1 | 1 | 6 | 4 | 5 | 2 | 4 | 2 | 2 | 0 | 0 | 4 | 0 | 2 | 1 | 2 | 2 | 9 | 3 | 8 | 14 | 11 | 6 | 7 | 2 | 11 | 4 | 6 | 10 | 6 | 4 | 3 | 4 | 7 | 4 | 1 | 2 | 1 | 1 | 0 | 2 | 5 | 6 | 3 | 2 | 15 | 3 | 6 | 3 | 4 | 5 | 6 | 6 | 6 | 9 | 3 | 1 | 6 | 2 | 5 | 3 | 2 | 1 | 0 | 0 | 0 | 1 | 5 | 3 | 4 | 16 | 1 | 5 | 3 | 4 | 3 | 6 | 4 | 2 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 6 | 7 | 2 | 0 | 5 | 6 | 8 | 8 | 1 | 3 | 1 | 1 | 1 | 0 | 3 | 1 | 0 | 0 | 1 | 0 | 1 | 4 | 4 | 4 | 19 | 3 | 1 | 2 | 2 | 3 | 7 | 1 | 1 | 3 | 1 | 2 | 4 | 0 | 1 | 0 | 1 | 0 | 2 | 0 | 2 | 0 | 1 | 4 | 2 | 20 | 1 | 2 | 1 | 0 | 0 | 0 | 2 | 3 | 1 | 3 | 3 | 0 | 1 | 1 | 0 | 1 | 2 | 1 | 1 | 3 | 0 | 3 | 0 | 2 | 21 | 1 | 4 | 3 | 4 | 1 | 1 | 4 | 3 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 4 | 2 | 22 | 1 | 3 | 3 | 1 | 3 | 3 | 3 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 5 | 1 | 0 | 3 | 23 | 6 | 4 | 5 | 6 | 5 | 3 | 1 | 3 | 2 | 0 | 0 | 1 | 3 | 1 | 3 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 2 | 1 | 24 | 1 | 1 | 1 | 2 | 5 | 4 | 7 | 10 | 2 | 6 | 4 | 6 | 4 | 0 | 2 | 3 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 2 | 25 | 2 | 5 | 0 | 2 | 5 | 7 | 3 | 6 | 3 | 5 | 2 | 2 | 2 | 1 | 2 | 6 | 0 | 1 | 4 | 1 | 2 | 0 | 0 | 1 | 26 | 4 | 2 | 3 | 3 | 1 | 1 | 9 | 6 | 3 | 3 | 1 | 2 | 6 | 6 | 0 | 2 | 0 | 3 | 1 | 2 | 3 | 1 | 2 | 2 | 27 | 5 | 4 | 2 | 5 | 4 | 4 | 3 | 4 | 1 | 1 | 2 | 5 | 1 | 4 | 1 | 3 | 1 | 1 | 1 | 2 | 3 | 1 | 0 | 2 | 28 | 3 | 2 | 1 | 0 | 3 | 1 | 10 | 3 | 5 | 2 | 1 | 4 | 3 | 0 | 0 | 3 | 0 | 4 | 0 | 0 | 0 | 2 | 1 | 8 | 29 | 8 | 3 | 3 | 3 | 8 | 6 | 2 | 5 | 9 | 1 | 4 | 5 | 1 | 2 | 2 | 0 | 6 | 0 | 1 | 0 | 4 | 2 | 3 | 3 | 30 | 6 | 4 | 6 | 3 | 10 | 7 | 9 | 6 | 6 | 0 | 0 | 5 | 1 | 5 | 6 | 2 | 1 | 2 | 0 | 2 | 2 | 4 | 4 | 3 | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|JST Echoes longer than 20 seconds Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|JST ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 01 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 04 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 06 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 07 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 08 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 09 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|JST note: ???: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- Observer: Hironbu Shida Location: Akita, Akita, Japan (140.1 E, 39.4 N) Frequency: 52.905 MHz Transmitter Location: HAM beacon (50 W CW, 52.905 MHz), Higashimurayama, Tokyo, Japan Antenna : HB062FDX Receiver : SDR# Method : by using HROFFT software (by Michinari Yamamoto) manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 8 | 12 | 12 | 13 | 23 | 15 | 15 | 10 | 26 |Mar 01 | 10 | 9 | 12 | 5 | 8 | 7 | 13 | 7 | 1 | 4 | 14 | 13 | 13 | 4 | 4 | 2 | 2 | 9 | 5 | 13 | 25 | 20 | 21 | 11 | 02 | 10 | 3 | 5 | 10 | 0 | 6 | 10 | 3 | 9 | 1 | 11 | 5 | 8 | 7 | 12 | 7 | 17 | 14 | 20 | 26 | 14 | 20 | 22 | 14 | 03 | 6 | 4 | 6 | 10 | 14 | 18 | 11 | 7 | 3 | 7 | 12 | 17 | 14 | 9 | 17 | 13 | 19 | 20 | 31 | 15 | 26 | 21 | 28 | 23 | 04 | 15 | 8 | 12 | 5 | 12 | 12 | 10 | 6 | 5 | 3 | 8 | 8 | 14 | 13 | 6 | 6 | 6 | 2 | 10 | 5 | 10 | 8 | 7 | 6 | 05 | 5 | 16 | 4 | 1 | 5 | 2 | 3 | 0 | 2 | 5 | 5 | 7 | 5 | 6 | 6 | 3 | 4 | 4 | 7 | 7 | 12 | 20 | 23 | 13 | 06 | 15 | 9 | 7 | 5 | 8 | 2 | 6 | 10 | 3 | 2 | 3 | 6 | 14 | 13 | 12 | 12 | 15 | 14 | 9 | 12 | 13 | 20 | 22 | 20 | 07 | 16 | 9 | 15 | 11 | 11 | 6 | 9 | 8 | 5 | 3 | 5 | 10 | 16 | 13 | 17 | 7 | 13 | 12 | 19 | 18 | 22 | 31 | 22 | 23 | 08 | 18 | 4 | 14 | 15 | 14 | 7 | 5 | 5 | 3 | 1 | 10 | 12 | 18 | 6 | 7 | 7 | 15 | 18 | 11 | 9 | 13 | 22 | 11 | 9 | 09 | 11 | 9 | 13 | 10 | 11 | 8 | 7 | 8 | 7 | 3 | 5 | 6 | 9 | 11 | 9 | 7 | 12 | 17 | 12 | 17 | 17 | 31 | 15 | 13 | 10 | 5 | 13 | 3 | 9 | 9 | 7 | 4 | 4 | 1 | 4 | 7 | 9 | 13 | 7 | 10 | 10 | 9 | 9 | 12 | 15 | 27 | 13 | 20 | 10 | 11 | 16 | 10 | 3 | 5 | 1 | 2 | 3 | 2 | 5 | 1 | 8 | 8 | 16 | 13 | 11 | 9 | 17 | 11 | 19 | 6 | 22 | 15 | 27 | 16 | 12 | 5 | 4 | 14 | 16 | 17 | 9 | 1 | 1 | 3 | 5 | 4 | 10 | 9 | 12 | 9 | 12 | 17 | 10 | 8 | 17 | 6 | 14 | 15 | 8 | 13 | 11 | 8 | 10 | 9 | 8 | 12 | 5 | 5 | 2 | 3 | 5 | 5 | 9 | 11 | 13 | 13 | 11 | 12 | 13 | 14 | 17 | 22 | 23 | 15 | 14 | 12 | 7 | 8 | 10 | 12 | 3 | 5 | 2 | 2 | 3 | 11 | 5 | 12 | 13 | 11 | 10 | 7 | 9 | 13 | 14 | 29 | 16 | 17 | 12 | 15 | 10 | 6 | 9 | 10 | 4 | 10 | 6 | 3 | 8 | 5 | 3 | 7 | 11 | 12 | 7 | 6 | 11 | 6 | 9 | 16 | 12 | 11 | 10 | 7 | 16 | 10 | 5 | 9 | 3 | 0 | 14 | 5 | 7 | 4 | 3 | 3 | 12 | 15 | 12 | 11 | 10 | 12 | 11 | 16 | 14 | 12 | 11 | 27 | 10 | 17 | 15 | 9 | 6 | 8 | 1 | 4 | 10 | 3 | 1 | 3 | 5 | 7 | 12 | 10 | 15 | 15 | 14 | 11 | 12 | 18 | 25 | 19 | 23 | 12 | 18 | 15 | 18 | 7 | 7 | 5 | 0 | 0 | 2 | 3 | 5 | 4 | 7 | 10 | 11 | 9 | 12 | 8 | 7 | 16 | 13 | 21 | 16 | 16 | 9 | 19 | 8 | 9 | 14 | 0 | 9 | 12 | 9 | 2 | 3 | 3 | 4 | 12 | 7 | 15 | 11 | 13 | 15 | 8 | 15 | 18 | 19 | 24 | 15 | 14 | 20 | 8 | 7 | 8 | 8 | 7 | 8 | 8 | 4 | 3 | 9 | 4 | 7 | 12 | 5 | 15 | 6 | 4 | 3 | 21 | 12 | 14 | 12 | 16 | 16 | 21 | 12 | 5 | 4 | 7 | 5 | 10 | 4 | 0 | 5 | 2 | 6 | 7 | 10 | 14 | 12 | 16 | 13 | 16 | 17 | 18 | 17 | 25 | 22 | 9 | 22 | 7 | 6 | 11 | 18 | 21 | 19 | 5 | 2 | 3 | 0 | 0 | 9 | 19 | 10 | 15 | 17 | 17 | 15 | 8 | 13 | 11 | 16 | 18 | 14 | 23 | 11 | 7 | 9 | 10 | 12 | 5 | 10 | 9 | 3 | 4 | 4 | 5 | 14 | 19 | 13 | 14 | 19 | 12 | 25 | 14 | 17 | 28 | 21 | 12 | 24 | 16 | 12 | 2 | 0 | 16 | 11 | 14 | 7 | 4 | 5 | 8 | 8 | 13 | 15 | 11 | 9 | 12 | 14 | 12 | 17 | 24 | 27 | 21 | 8 | 25 | 11 | 3 | 1 | 0 | 4 | 14 | 5 | 8 | 2 | 4 | 7 | 8 | 16 | 11 | 6 | 11 | 15 | 16 | 14 | 17 | 17 | 22 | 12 | 4 | 26 | 7 | 1 | 4 | 13 | 17 | 5 | 5 | 3 | 4 | 3 | 8 | 9 | 14 | 13 | 11 | 8 | 13 | 20 | 22 | 17 | 13 | 26 | 22 | 16 | 27 | 8 | 11 | 5 | 2 | 12 | 18 | 6 | 6 | 8 | 4 | 4 | 8 | 16 | 9 | 8 | 4 | 15 | 20 | 7 | 25 | 19 | 26 | 24 | 12 | 28 | 12 | 5 | 9 | 11 | 16 | 23 | 12 | 16 | 7 | 6 | 9 | 6 | 6 | 9 | 6 | 17 | 16 | 18 | 19 | 12 | 16 | 34 | 27 | 16 | 29 | 12 | 9 | 12 | 7 | 24 | 13 | 4 | 9 | 6 | 3 | 8 | 9 | 7 | 12 | 11 | 13 | 16 | 12 | 17 | 23 | 16 | 31 | 24 | 9 | 30 | 6 | 8 | 10 | 3 | 10 | 17 | 12 | 8 | 8 | 2 | 6 | 5 | 13 | 10 | 6 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT Echoes longer than 20 seconds Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 |Mar 01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 04 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 06 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 07 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 10 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 12 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 13 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 0 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 17 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 19 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 21 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT note: ???: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening ----------------------------------------------------------------------------- Observer : Hirotaka Otsuka Location : Hirakata, Osaka, Japan (135.7 E, 34.9 N) Frequency: 53.100 MHz Antenna : 2el-HB9CV, 4mH (90-270 Azimuth(East-West), 90elevation) Transmitter Location:　 HAM beacon (JA2SDA 50 W CW, 53.100 MHz), Toyokawa, Aichi, Japan Reciever: YAESU FT-690 53.099MHz(Toyokawa), USB Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 1 | 1 | 2 | 3 | 3 | 3 | 1 | 1 | 1 |Mar 01 | 0 | 0 | 1 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 5 | 1 | 1 | 1 | 02 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 3 | 3 | 4 | 1 | 4 | 2 | 03 | 2 | 1 | 4 | 2 | 0 | 0 | 2 | 0 | 2 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 3 | 4 | 2 | 2 | 1 | 2 | 04 | 0 | 2 | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 3 | 4 | 2 | 2 | 1 | 2 | 05 | 1 | 0 | 0 | 2 | 2 | 4 | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 3 | 4 | 0 | 2 | 4 | 3 | 2 | 0 | 06 | 1 | 0 | 2 | 2 | 2 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 3 | 1 | 07 | 1 | 0 | 0 | 1 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 3 | 2 | 0 | 1 | 2 | 4 | 0 | 08 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 2 | 3 | 2 | 3 | 1 | 1 | 0 | 1 | 09 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 2 | 1 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 2 | 0 | 1 | 0 | 1 | 3 | 2 | 1 | 1 | 0 | 0 | 11 | 4 | 0 | 0 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 2 | 0 | 0 | 12 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 2 | 0 | 1 | 2 | 0 | 2 | 0 | 0 | 0 | 1 | 2 | 1 | 2 | 2 | 2 | 1 | 0 | 13 | 1 | 1 | 1 | 2 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 2 | 1 | 2 | 0 | 1 | 1 | 0 | 14 | 0 | 1 | 2 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 3 | 2 | 1 | 3 | 0 | 0 | 0 | 15 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 3 | 4 | 0 | 2 | 2 | 1 | 16 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 2 | 2 | 3 | 1 | 2 | 1 | 2 | 1 | 17 | 0 | 0 | 3 | 1 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 18 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 5 | 2 | 0 | 1 | 1 | 19 | 0 | 1 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 2 | 1 | 1 | 0 | 0 | 20 | 3 | 1 | 3 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 21 | 2 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 1 | 0 | 22 | 1 | 0 | 0 | 0 | 2 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 2 | 1 | 0 | 2 | 0 | 2 | 0 | 0 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 3 | 0 | 0 | 1 | 0 | 24 | 1 | 2 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 3 | 25 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 2 | 2 | 0 | 26 | 0 | 1 | 3 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 27 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 0 | 2 | 3 | 0 | 1 | 1 | 28 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 1 | 2 | 1 | 1 | 1 | 0 | 2 | 29 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 2 | 2 | 0 | 4 | 0 | 0 | 0 | 0 | 30 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 1 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT Echoes longer than 20 seconds Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |Mar 01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 03 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 04 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 06 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 07 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 17 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT note: ???: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening ----------------------------------------------------------------------------- Observer: Norihiro Nakamura Location: Tsukuba, Ibaraki, Japan (140.1 E, 36.0 N) Frequency: 52.905 MHz Transmitter Location:　 HAM beacon (50 W CW, 52.905 MHz), Higashimurayama, Tokyo, Japan Antenna : Dipole Receiver : YAESU FT-817 Method : by using MROFFT software (by Michinari Yamamoto) manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 |Mar 01 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 0 | 1 | 3 | 02 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 4 | 4 | 2 | 1 | 3 | 2 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 6 | 1 | 2 | 2 | 3 | 4 | 2 | 0 | 1 | 04 | 0 | 1 | 1 | 1 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 12 | 5 | 5 | 2 | 4 | 2 | 5 | 1 | 0 | 05 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 2 | 1 | 4 | 2 | 2 | 1 | 1 | 3 | 0 | 0 | 06 | 2 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 2 | 2 | 1 | 0 | 0 | 07 | 0 | 2 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 3 | 3 | 1 | 2 | 4 | 2 | 1 | 1 | 0 | 08 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 7 | 0 | 1 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 4 | 2 | 3 | 2 | 4 | 9 | 2 | 1 | 0 | 10 | 0 | 2 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 0 | 5 | 1 | 2 | 1 | 0 | 0 | 11 | 0 | 0 | 0 | 5 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 9 | 2 | 2 | 4 | 4 | 4 | 1 | 0 | 12 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 1 | 2 | 1 | 2 | 2 | 1 | 2 | 0 | 13 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 2 | 0 | 1 | 4 | 0 | 1 | 2 | 1 | 0 | 14 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 3 | 0 | 1 | 3 | 2 | 1 | 3 | 4 | 15 | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 1 | 2 | 1 | 3 | 4 | 3 | 5 | 2 | 0 | 1 | 1 | 16 | 3 | 2 | 0 | 0 | 3 | 3 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 3 | 1 | 1 | 3 | 6 |??? |??? |??? |??? |??? |??? | 17 |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 2 | 3 | 0 | 1 | 3 | 2 | 3 | 1 | 3 | 0 | 1 | 1 | 1 | 18 | 5 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 2 | 0 | 1 | 0 | 0 |??? |??? | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 1 | 2 | 1 | 5 | 4 | 5 | 4 | 20 | 3 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 1 | 1 | 2 | 2 | 1 | 3 | 3 | 0 | 4 | 3 | 0 | 1 | 3 | 0 | 3 | 21 | 1 | 3 | 1 | 0 | 1 | 0 | 2 | 0 | 0 | 1 | 3 | 0 | 1 | 1 | 2 | 3 | 8 | 6 | 4 | 4 | 3 | 8 | 4 | 1 | 22 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 3 | 3 | 1 | 1 | 2 | 1 | 3 | 1 | 3 | 2 | 2 | 1 | 0 | 23 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 8 | 6 | 6 | 4 | 3 | 5 | 3 | 1 | 6 | 24 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 0 | 2 | 0 | 2 | 5 | 4 | 4 | 1 | 0 | 25 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 3 | 2 | 5 | 5 | 4 | 2 | 4 | 1 | 4 | 1 | 0 | 26 | 1 | 1 | 0 | 0 | 1 | 0 | 2 | 2 | 0 | 1 | 0 | 2 | 0 | 1 | 4 | 2 | 0 | 2 | 2 | 2 | 4 | 3 | 5 | 4 | 27 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 2 | 2 | 1 | 1 | 5 | 2 | 2 | 5 | 4 | 0 | 3 | 28 | 0 | 2 | 3 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 3 | 2 | 1 | 0 | 3 |??? |??? |??? |??? | 29 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 3 | 7 | 2 | 0 | 0 | 1 | 1 | 0 | 1 | 30 | 2 | 1 | 2 | 1 | 0 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT Echoes longer than 20 seconds Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |Mar 01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 04 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 06 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 07 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? | 17 |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? | 29 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT note: ???: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening ----------------------------------------------------------------------------- Observer : Yoshikawa Yasufumi/JG2MLI Location : Nagoya Aichi-pref. JAPAN (136.90E, 35.20N) Frequency: 52.905 MHz Transmitter Location: HAM Beacon/JJ1RLQ(Higashi-murayama Tokyo, Japan) Antenna : -Apr.6: 8mH 2el. HB9CV Horizontal:ENE Apr.6-: 8mH 3el. Yagi Receiver: SMArt RTL-SDR V5 + HDSDR Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using HROview and HROreport (by Michinari Yamamoto) Total number of echoes Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 1 | 5 | 5 | 2 | 1 | 2 | 1 | 3 | 7 |Mar 01 | 1 | 4 | 7 | 5 | 4 | 1 | 6 | 2 | 0 | 1 | 0 | 1 | 0 | 2 | 4 | 2 | 5 | 6 | 3 | 8 | 4 | 3 | 5 | 2 | 02 | IF | 8 | 4 | 4 | 4 | 2 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 3 | 2 | 1 | 1 | 4 | 3 | 5 | 0 | 6 | 3 | 03 | 5 | 3 | 7 | 2 | 1 | 0 | 1 | 0 | 0 | NS | 1 | 0 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 3 | 0 | 0 | 1 | 2 | 04 | 1 | 4 | 2 | 6 | 5 | 3 | 2 | 0 | NS | NS | 0 | 1 | 1 | 3 | 2 | 4 | 2 | 4 | 2 | 4 | 2 | 1 | 1 | 3 | 05 | 4 | 4 | 5 | 4 | 2 | 6 | 2 | 3 | NS | NS | 2 | 1 | 1 | 2 | 0 | 7 | 5 | 6 | 5 | 2 | 5 | 5 | 5 | 5 | 06 | 9 | 5 | 5 | 5 | 5 | 4 | 5 | 0 | 2 | NS | 0 | 0 | 0 | 3 | 3 | 5 | 2 | 2 | 3 | 2 | 3 | 2 | 0 | 6 | 07 | 2 | 5 | 5 | 4 | 3 | 3 | 0 | 1 | NS | NS | NS | NS | NS | NS | NS | 1 | 0 | 2 | 3 | 5 | 2 | 6 | 5 | 6 | 08 | 6 | NS | NS | NS | NS | NS | 2 | 0 | NS | NS | NS | 0 | 2 | 3 | 0 | 4 | NS | 4 | 2 | 2 | 4 | 4 | 2 | 1 | 09 | 4 | 5 | 4 | 6 | 6 | 4 | 2 | 5 | NS | NS | 0 | 2 | 0 | 3 | 7 | 3 | 3 | 5 | 7 | 3 | 2 | 0 | 3 | 3 | 10 | 6 | 3 | 5 | 4 | 0 | 5 | 5 | 0 | NS | 2 | 3 | 0 | 3 | 3 | 5 | 6 | 6 | 4 | 3 | 8 | 4 | 6 | 6 | 9 | 11 | 2 | 9 | 13 | 16 | 7 | 6 | 3 | 6 | 0 | 0 | 1 | 1 | 2 | 2 | 1 | 5 | 3 | 4 | 8 | 2 | 2 | 8 | 5 | 5 | 12 | 6 | 7 | 11 | 6 | 4 | 4 | 3 | 2 | 0 | NS | 2 | 2 | 3 | 1 | 3 | 6 | 5 | 9 | 5 | 3 | 4 | 4 | 3 | 6 | 13 | 6 | 11 | 8 | 5 | 7 | 6 | 1 | 2 | 1 | 0 | 0 | 0 | 5 | 4 | 3 | 11 | 5 | 7 | 4 | 4 | 4 | 2 | 5 | 3 | 14 | 11 | 9 | 10 | 4 | 3 | 6 | 2 | 1 | 2 | 1 | 2 | 0 | 1 | 2 | 2 | 4 | 6 | 6 | 4 | 1 | 3 | 2 | 7 | 2 | 15 | 6 | 3 | 3 | 10 | 11 | 4 | 0 | 0 | 2 | 2 | 0 | 1 | 3 | 1 | 4 | 7 | 3 | 2 | 5 | 3 | 4 | 1 | 2 | 5 | 16 | 5 | 9 | 6 | 7 | 2 | 4 | 3 | 2 | 1 | 1 | 0 | 2 | 1 | 2 | 3 | 12 | 4 | 5 | 1 | 3 | 5 | 4 | 8 | 3 | 17 | 5 | 10 | 14 | 7 | NS | 8 | 3 | 2 | 3 | 2 | 0 | 0 | 2 | 1 | 2 | 3 | 4 | 3 | 9 | 1 | 6 | 9 | 5 | 4 | 18 | 2 | 13 | 6 | 13 | 5 | NS | 4 | 0 | 0 | 0 | NS | 1 | 4 | 1 | 3 | 2 | 8 | 6 | 5 | 6 | 5 | 3 | 1 | 5 | 19 | 3 | 7 | 6 | 7 | 3 | 0 | 2 | 1 | NS | NS | 0 | 1 | 2 | 4 | 5 | 5 | 3 | 4 | 5 | 1 | 4 | 3 | 6 | 4 | 20 | 7 | 6 | 7 | 3 | 1 | 6 | 1 | 4 | 1 | 0 | 0 | 3 | 3 | 0 | 5 | 3 | 4 | 2 | 10 | 1 | 6 | 3 | 4 | 5 | 21 | 2 | 6 | 8 | 6 | 2 | NS | 1 | 0 | 1 | 0 | 3 | 1 | 1 | 2 | 6 | 7 | 1 | 5 | 6 | 4 | 1 | 7 | 2 | 8 | 22 | 5 | 6 | 7 | 7 | 8 | 5 | 2 | 0 | 0 | 4 | 0 | 1 | 1 | 4 | 2 | 2 | 6 | 5 | 3 | 11 | 8 | 5 | 10 | 5 | 23 | 8 | 7 | 14 | 3 | 5 | 5 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 3 | 2 | 0 | 0 | 4 | 4 | 2 | 1 | 2 | 2 | 5 | 24 | 0 | 2 | 4 | 3 | 2 | 3 | 1 | 2 | 1 | NS | 2 | 1 | 1 | 0 | 4 | 6 | 3 | 4 | 2 | 1 | 4 | 4 | 4 | 3 | 25 | 9 | 7 | 4 | 7 | 13 | 8 | 2 | 0 | 0 | 1 | 0 | 4 | 0 | 2 | 0 | 9 | 7 | 10 | 5 | 6 | 9 | 5 | 4 | 6 | 26 | 5 | IF | IF | 8 | 8 | 5 | 4 | 0 | 0 | NS | 0 | 0 | 2 | 1 | 3 | 4 | 4 | 3 | 1 | 0 | 1 | 2 | 3 | 1 | 27 | 8 | 4 | 10 | 12 | 9 | 3 | 2 | 1 | 1 | NS | 0 | 1 | 0 | 3 | 2 | 1 | 4 | 0 | 5 | 2 | 5 | 4 | 7 | 4 | 28 | 4 | 6 | 13 | 7 | 3 | 10 | NS | 2 | IF | 2 | 1 | 1 | 1 | 5 | 1 | 3 | 4 | 4 | 2 | 5 | 7 | 6 | 2 | 3 | 29 | 9 | 7 | 6 | 3 | 6 | 7 | 4 | 2 | NS | 0 | 0 | 0 | 3 | 0 | 5 | 4 | 6 | 1 | 0 | 3 | 2 | 2 | 7 | 2 | 30 | 2 | 7 | 6 | 4 | 3 | 3 | 1 | 0 | NS | NS | 0 | 2 | 0 | 3 | 1 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT Echoes longer than 20 seconds Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |Mar 01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 02 | IF | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 04 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 06 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 07 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | NS | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 08 | 0 | NS | NS | NS | NS | NS | 0 | 0 | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 17 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 21 | 0 | 0 | 1 | 0 | 1 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 23 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | IF | IF | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | IF | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT note: ???: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening ----------------------------------------------------------------------------- Observer: Koichiro Okuno/JI3EMB Location: Habikino, Osaka, Japan (34.3 N, 135.4 E) Frequency: 52.905 MHz　(Mode:LSB) Transmitter Location:　 HAM beacon (JJ1RLQ 50 W CW, 52.905 MHz), Tachikawa, Tokyo, Japan Antenna : GP (DIAMOND CP-6) 7mH Receiver : R820T2 & SDR + TCXO (HDSDR) Method : by using MROFFT software (by Michinari Yamamoto) manual count using HROview and HROreport (by Michinari Yamamoto) Total number of echoes Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 3 | 1 | 0 | 1 | 4 | 2 | 2 | 7 |Mar 01 | 5 | 3 | 1 | 0 | 1 | 2 | 2 | 0 | 2 | 1 | 0 | 0 | 1 | 1 | 0 | 3 | 3 | 3 | 1 | 3 | 2 | 1 | 3 | 1 | 02 | 4 | 1 | 2 | 2 | 4 | 4 | 3 | 1 | 3 | 3 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 2 | 2 | 2 | 0 | 1 | 6 | 03 | 2 | 0 | 2 | 2 | 0 | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 3 | 2 | 1 | 1 | 3 | 04 | 0 | 1 | 3 | 1 | 0 | 1 | 5 | 1 | 4 | 0 | 0 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 1 | 0 | 0 | 1 | 2 | 3 | 05 | 2 | 7 | 4 | 3 | 7 | 2 | 1 | 2 | 3 | 2 | 1 | 2 | 4 | 0 | 1 | 3 | 3 | 1 | 2 | 3 | 1 | 6 | 2 | 3 | 06 | 5 | 3 | 1 | 2 | 0 | 0 | 3 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 4 | 2 | 0 | 2 | 0 | 2 | 2 | 1 | 3 | 07 | 0 | 1 | 0 | 0 | 3 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | 0 | 2 | 2 | 2 | 2 | 08 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 3 | 1 | 2 | 0 | 1 | 0 | 0 | 2 | NS | 0 | 0 | NS | NS | 0 | 3 | 2 | 3 | 09 | 3 | 0 | 1 | 0 | 1 | 2 | 1 | 2 | 3 | 0 | 0 | 0 | 1 | 0 | 2 | 2 | 1 | 3 | 1 | 3 | 2 | 4 | 0 | 2 | 10 | 8 | 5 | 4 | 6 | 6 | 1 | 2 | 1 | 0 | 0 | 2 | 0 | 0 | 3 | 1 | 1 | 3 | 6 | 3 | 2 | 3 | 2 | 1 | 4 | 11 | 3 | 0 | 0 | 1 | 1 | 0 | 0 | 3 | 1 | 2 | 1 | 2 | 1 | 1 | 0 | 5 | 2 | 5 | 1 | 0 | 3 | 1 | 4 | 0 | 12 | 2 | 2 | 1 | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 2 | 1 | 2 | 1 | 1 | 1 | 0 | 2 | 1 | 6 | 4 | 4 | 3 | 1 | 13 | 0 | 0 | 4 | 3 | 0 | 0 | 1 | 0 | 2 | 1 | 0 | 0 | 1 | 1 | 0 | 2 | 1 | 2 | 3 | 1 | 1 | 3 | 2 | 1 | 14 | 0 | 2 | 4 | 2 | 2 | 3 | 0 | 0 | 1 | 1 | 0 | 2 | 1 | 2 | 2 | 0 | 1 | 1 | 1 | 0 | 2 | 0 | 3 | 1 | 15 | 0 | 4 | 0 | 2 | 3 | 4 | 0 | 1 | 2 | 0 | 0 | 1 | 1 | 1 | 1 | 3 | 0 | 3 | 1 | 3 | 1 | 0 | 0 | 0 | 16 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 2 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 1 | 4 | 3 | 2 | 4 | 17 | 3 | 0 | 4 | 0 | 2 | 1 | 0 | 2 | 1 | 2 | 0 | 0 | 1 | 3 | 1 | 0 | 1 | 1 | 4 | 3 | 4 | 6 | 3 | 0 | 18 | 0 | 3 | 4 | 2 | 0 | 2 | 2 | 0 | 2 | 0 | 3 | 2 | 0 | 1 | 1 | 3 | 3 | 4 | 3 | 2 | 2 | 2 | 1 | 2 | 19 | 1 | 2 | 3 | 3 | 4 | 2 | 5 | 2 | 3 | 1 | 0 | 1 | 1 | 0 | 2 | 1 | 0 | 1 | 3 | 1 | 1 | 2 | 4 | 2 | 20 | 2 | 2 | 2 | 1 | 2 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 2 | 1 | 1 | 5 | 0 | 4 | 2 | 3 | 6 | 3 | 1 | 21 | 0 | 3 | 1 | 1 | 2 | 3 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 2 | 1 | 2 | 4 | 2 | 2 | 2 | 1 | 3 | 2 | 2 | 22 | 0 | 2 | 3 | 0 | 2 | 2 | 1 | 0 | 0 | 2 | 2 | 1 | 2 | 3 | 2 | 2 | 1 | 1 | 2 | 2 | 6 | 5 | 8 | 3 | 23 | 10 | 8 | 6 | 6 | 4 | 7 | 4 | 1 | 4 | 1 | 1 | 2 | 4 | 2 | 4 | 4 | 3 | 3 | 4 | 6 | 2 | 6 | 5 | 5 | 24 | 3 | 5 | 0 | 4 | 4 | 4 | 1 | 1 | 2 | 2 | 1 | 2 | 0 | 2 | 0 | 2 | 2 | 5 | 3 | 5 | 0 | 3 | 3 | 7 | 25 | 2 | 5 | 1 | 2 | 2 | 4 | 0 | 0 | 1 | 1 | 1 | 0 | 2 | 1 | 4 | 1 | 3 | 2 | 5 | 4 | 3 | 4 | 3 | 2 | 26 | 1 | 1 | 3 | 2 | 2 | 1 | 0 | 4 | 1 | 1 | 1 | 0 | 3 | 3 | 3 | 0 | 2 | 3 | 5 | 2 | 4 | 1 | 2 | 1 | 27 | 2 | 5 | 4 | 2 | 0 | 0 | 1 | 2 | 1 | 3 | 4 | 2 | 3 | 5 | 1 | 2 | 0 | 2 | 2 | 2 | 5 | 6 | 4 | 2 | 28 | 3 | 1 | 1 | 3 | 1 | 3 | 2 | 2 | 4 | 0 | 0 | 3 | 1 | 1 | 0 | 0 | 1 | 2 | 2 | 3 | 7 | 2 | 4 | 4 | 29 | 5 | 1 | 6 | 1 | 5 | 2 | 0 | 1 | 1 | 3 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 3 | 4 | 6 | 4 | 7 | 5 | 3 | 30 | 7 | 5 | 6 | 8 | 6 | 8 | 5 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 2 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT Echoes longer than 20 seconds Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |Mar 01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 04 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 06 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 07 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | NS | NS | 0 | 0 | 0 | 0 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 23 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT note: ???: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening ----------------------------------------------------------------------------- Observer : Mai Wakita /JS2JAQ Location : Ichinomiya Aichi-pref. JAPAN (136.81E, 35.34N) Frequency: 50.017 MHz Transmitter Location: HAM Beacon/JA6YBR/b(Miyazaki Miyazaki, Japan) Antenna : 5mH 2el.HB9CV Horizontal:WSW Receiver: SMArt RTL-SDR V5 + HDSDR Method : by using MROFFT software (by Michinari Yamamoto), manual count using HROview and HROreport (by Michinari Yamamoto) Total number of echoes Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 3 | 4 | 4 | 6 | 7 | 8 | 4 | 6 | 5 |Mar 01 | 9 | 4 | 4 | 4 | 4 | 0 | 7 | ES | ES | ES | ES | NS | NS | NS | NS | 12 | 15 | 12 | 12 | 11 | 14 | 8 | 6 | 4 | 02 | 9 | 1 | 5 | 5 | 2 | 1 | ES | 3 | 2 | 0 | 4 | 6 | 6 | 5 | 5 | 6 | 3 | 6 | 4 | 9 | 11 | 12 | 11 | 7 | 03 | 8 | 8 | 5 | 3 | 0 | 1 | 3 | 4 | 6 | 8 | 6 | 5 | NS | 6 | 4 | 4 | 4 | 7 | 6 | 7 | 8 | 8 | NS | 10 | 04 | 11 | 8 | 5 | 6 | 5 | 6 | NS | NS | NS | NS | NS | NS | 7 | 12 | 4 | 6 | 7 | 6 | 8 | 16 | 9 | 14 | 7 | 8 | 05 | 8 | 5 | 5 | 5 | 0 | 1 | 3 | 2 | NS | 2 | NS | NS | 5 | 2 | 5 | 2 | 8 | 7 | 9 | 6 | 10 | 7 | 10 | 6 | 06 | 3 | 5 | 3 | 2 | 0 | 3 | 4 | 2 | 0 | 3 | NS | NS | NS | 2 | 4 | 1 | 1 | 3 | 2 | 5 | 6 | 6 | 11 | 9 | 07 | NS | NS | NS | 2 | 0 | 3 | 8 | 3 | 5 | 2 | 6 | 0 | 0 | 1 | 4 | NS | 6 | 4 | 9 | 3 | NS | 11 | 11 | 10 | 08 | 3 | 7 | 8 | 3 | 2 | 1 | 0 | 1 | ES | ES | 1 | 2 | 6 | 3 | 4 | 3 | 6 | 8 | 8 | 6 | 5 | 8 | 10 | 10 | 09 | 10 | 9 | 5 | 2 | 5 | 5 | 2 | 6 | ES | ES | ES | NS | 6 | 9 | 7 | 6 | 14 | 10 | 13 | 15 | 14 | 19 | 18 | 10 | 10 | 20 | 11 | 7 | 4 | 3 | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | 8 | 7 | 11 | 4 | 6 | 7 | 11 | 6 | 5 | 5 | 4 | 3 | 1 | NS | NS | NS | NS | 4 | NS | NS | NS | 0 | 4 | 0 | 3 | 2 | 2 | 5 | 3 | 3 | 6 | 12 | 3 | 10 | 0 | 2 | 2 | 3 | 2 | 1 | 1 | 3 | NS | NS | NS | 5 | 2 | 5 | 3 | 1 | 2 | 1 | 6 | 7 | 0 | 3 | 13 | 0 | 0 | 1 | 2 | 0 | 1 | 1 | 2 | 6 | ES | 4 | 3 | 3 | 0 | 2 | 5 | 4 | 2 | 2 | 3 | 1 | 3 | 2 | 3 | 14 | 4 | 3 | 2 | 2 | 0 | 1 | NS | NS | NS | NS | NS | NS | 1 | 1 | 2 | 1 | 1 | 1 | 3 | 1 | 1 | 0 | 2 | 1 | 15 | 3 | 0 | 1 | 2 | 3 | 0 | 6 | NS | 1 | 0 | ES | NS | NS | 6 | 9 | 6 | 7 | 10 | 10 | 10 | 11 | 10 | 12 | 6 | 16 | 9 | 7 | 2 | 1 | 0 | 1 | 3 | 4 | 3 | 1 | 4 | 4 | 1 | 4 | 3 | 2 | 4 | 10 | 5 | 5 | 7 | 6 | 8 | 9 | 17 | 5 | 5 | 5 | 2 | 0 | 8 | 1 | 0 | 1 | 2 | 3 | 3 | 6 | 2 | 4 | 4 | 5 | 3 | 4 | 6 | 12 | 11 | 12 | 13 | 18 | 9 | 6 | 1 | 2 | 2 | 3 | 2 | 5 | 3 | 6 | NS | NS | NS | 1 | 2 | 6 | 3 | 2 | 1 | 4 | 6 | 5 | 6 | 5 | 19 | 2 | 9 | 2 | 4 | 2 | 6 | 6 | 2 | NS | NS | NS | NS | NS | 3 | 10 | 5 | 2 | 4 | 4 | 6 | 7 | 6 | 7 | 5 | 20 | 5 | 8 | 2 | 3 | 1 | 5 | 5 | 6 | NS | NS | NS | NS | NS | 2 | 2 | 6 | 3 | 5 | 5 | 7 | 13 | 6 | 6 | 6 | 21 | 12 | 4 | 1 | 3 | 8 | 2 | 5 | 5 | 5 | NS | 4 | NS | 3 | 4 | 5 | 5 | 2 | 5 | 4 | 7 | 9 | 9 | 10 | 5 | 22 | 11 | 8 | 4 | 2 | 3 | 4 | 4 | 3 | 1 | 0 | 0 | 4 | NS | NS | 3 | 2 | 8 | NS | 7 | 5 | 4 | 4 | 12 | 16 | 23 | 15 | 9 | 6 | 7 | 6 | 7 | 3 | 8 | NS | NS | NS | NS | NS | 3 | 8 | 14 | 9 | 11 | 13 | 13 | 16 | 9 | 13 | 15 | 24 | 6 | 3 | 4 | 5 | 0 | 1 | 2 | 4 | 2 | 1 | 2 | 1 | NS | NS | 1 | 6 | 4 | 5 | 3 | 5 | 8 | 9 | 6 | 13 | 25 | 7 | 7 | 2 | 6 | 3 | 8 | 4 | 8 | 9 | 4 | 3 | NS | 3 | 3 | NS | 3 | 4 | 3 | 3 | 4 | 8 | 4 | 6 | 6 | 26 | 3 | 3 | 1 | 3 | 2 | 2 | 0 | 1 | NS | 0 | 0 | 1 | 4 | 2 | 12 | 8 | 9 | 11 | 8 | 13 | 18 | 11 | 15 | 6 | 27 | 9 | 9 | 4 | 1 | 2 | 5 | 6 | 6 | 3 | ES | NS | NS | NS | 3 | 5 | 7 | 11 | 8 | 13 | 8 | 10 | 11 | 5 | 9 | 28 | 7 | 5 | 6 | 7 | 3 | 3 | 5 | 3 | 4 | 0 | NS | 1 | NS | NS | 0 | 1 | 2 | 3 | 2 | 7 | 3 | 5 | 9 | 6 | 29 | 5 | 5 | 2 | 1 | 1 | 2 | 4 | 2 | 0 | 3 | 1 | 1 | NS | 1 | 3 | 2 | 3 | 3 | 4 | 5 | 9 | 10 | 11 | 4 | 30 | 6 | 5 | 5 | 3 | 3 | 4 | 4 | 2 | 4 | NS | NS | NS | NS | 2 | 4 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT Echoes longer than 20 seconds Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |Mar 01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ES | ES | ES | ES | NS | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02 | 0 | 0 | 0 | 0 | 0 | 0 | ES | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 04 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 05 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 06 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 07 | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | NS | 0 | 1 | 1 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ES | ES | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 09 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | ES | ES | ES | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | NS | 0 | 0 | 0 | 1 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | NS | 0 | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ES | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | ES | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 17 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 19 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 22 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 0 | NS | 0 | 1 | 0 | 0 | 2 | 1 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 24 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | NS | 0 | 0 | NS | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 27 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ES | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | NS | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT note: ???: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h -------------------------------------------------------------------------------- About the RMOJ... RMOJ reports the results of radio meteor observations in Japan, sent to myself. I hope RMOJ will be helpful to radio observers, as well as all meteor observers. Hiroshi Ogawa 2026.05.15