Radio Meteor Observation in Japan No.282 April 2025 - 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: ITEC HRO-RX1a 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 | 7 9 13 16 7 11 7 13 7 4 5 9 11 8 6 5 2 0 1 3 2 4 11 10 02 | 7 14 15 15 17 16 12 12 10 9 8 9 5 7 7 5 2 2 1 6 2 5 6 10 03 | 10 20 14 22 8 14 15 16 15 4 6 5 6 8 5 2 3 1 %1 -- -- -- 17 14 04 | 15 18 15 19 8 13 8 19 11 9 6 9 10 4 7 6 0 3 4 1 7 4 8 15 05 | 7 15 20 8 23 19 14 21 7 7 11 5 8 7 3 5 2 0 2 5 3 3 5 9 06 | 5 10 12 14 15 10 9 12 11 11 7 10 7 6 6 4 1 3 2 3 1 6 8 7 07 | 7 1 22 15 13 9 13 11 11 5 9 12 8 13 6 4 2 1 4 6 1 7 11 8 08 | 11 16 11 16 15 9 11 14 5 9 12 6 10 7 6 2 4 2 2 3 4 4 3 11 09 | 13 16 17 18 11 13 13 16 7 15 8 5 7 5 4 7 2 0 1 4 4 5 9 14 10 | 10 26 20 16 18 17 11 13 7 12 3 5 15 9 3 3 0 0 2 2 5 8 6 11 11 | 14 13 16 16 10 12 11 15 4 6 5 5 10 1 5 2 2 1 4 5 1 4 5 7 12 | 7 6 14 17 13 11 8 12 8 7 7 3 6 7 3 0 3 4 2 4 1 6 3 9 13 | 9 13 10 7 11 8 10 5 9 2 3 3 8 4 2 4 0 2 2 3 1 4 4 6 14 | 10 9 8 12 10 10 8 15 11 7 5 5 13 9 7 6 2 3 1 2 3 3 10 7 15 | 6 12 13 13 9 8 9 9 7 4 4 2 7 6 4 2 3 2 3 8 7 5 12 16 16 | 19 16 16 20 25 13 19 12 12 13 8 6 6 7 4 8 0 4 2 4 1 7 5 10 17 | 14 12 19 20 16 16 13 11 12 16 6 12 13 12 5 4 2 2 2 2 2 6 7 18 18 | 9 16 19 19 18 16 10 15 7 10 5 9 18 8 12 7 3 2 0 3 4 5 5 10 19 | 17 17 18 14 11 19 13 13 15 8 8 11 9 10 5 1 0 0 2 2 3 5 5 8 20 | 15 11 18 10 11 14 14 12 14 14 12 7 11 3 5 3 3 0 0 1 5 2 13 10 21 | 17 14 26 19 14 13 12 13 14 9 6 4 7 7 11 3 2 3 1 0 2 3 8 7 22 | 10 5 13 9 8 11 10 13 12 6 10 6 5 3 8 6 1 3 1 2 2 5 6 8 23 | 10 15 15 13 3 12 12 10 6 10 5 3 7 4 5 1 0 0 1 1 0 0 1 0 24 | 0 1 4 5 1 3 %0 2 3 %0 3 1 10 10 3 5 2 0 2 2 3 4 0 3 25 | 11 6 6 5 12 10 7 2 4 4 9 4 7 4 1 0 3 0 2 3 1 5 6 7 26 | 12 7 10 12 12 17 5 7 7 4 5 4 14 5 4 5 6 0 0 1 2 3 6 5 27 | 8 10 13 10 12 12 9 14 5 6 4 5 3 11 8 6 3 1 0 3 2 4 7 6 28 | 10 11 8 15 11 9 9 12 4 4 4 4 9 4 4 1 5 2 1 0 3 4 3 6 29 | 9 5 13 11 11 13 10 7 15 7 8 9 7 4 8 2 1 1 1 2 5 3 3 4 30 | 12 15 9 9 12 8 18 10 14 9 11 5 15 10 9 3 3 1 3 2 3 7 7 3 ---+------------------------------------------------------------------------ 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 | 04 | 1 05 | 1 06 | 07 | 1 08 | 09 | 1 10 | 1 11 | 1 1 12 | 1 13 | 1 1 14 | 1 1 15 | 16 | 17 | 18 | 1 1 19 | 20 | 21 | 22 | 23 | 1 24 | 25 | 26 | 27 | 1 28 | 29 | 1 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 : 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 | 3 2 0 4 6 2 9 3 %5 %0 3 3 4 2 %2 2 1 1 %0 5 1 0 3 3 02 | 2 6 8 4 1 7 7 8 5 8 2 0 0 0 0 0 0 0 0 1 1 1 1 1 03 | 0 1 1 4 9 6 3 6 IF %5 5 5 2 IF IF IF IF 3 2 2 1 0 2 2 04 | 1 2 0 2 1 2 2 3 2 0 0 0 1 1 1 2 1 3 3 3 1 1 1 0 05 | 0 0 2 1 2 4 4 1 1 3 1 3 0 0 0 0 %0 IF IF IF %0 IF 2 5 06 | 1 5 1 2 2 4 7 2 6 3 3 6 2 5 0 2 2 1 1 1 1 0 1 0 07 | 0 0 2 3 2 0 3 2 4 3 4 2 1 2 0 2 1 1 0 7 1 2 0 2 08 | 1 4 3 %0 1 3 3 5 3 9 3 4 1 1 0 2 0 1 1 4 2 0 0 0 09 | 1 1 3 3 2 3 0 0 2 1 2 3 0 2 2 1 0 2 0 0 1 0 4 3 10 | 1 0 6 2 2 2 7 2 5 1 4 3 1 4 4 0 1 2 0 1 1 1 1 5 11 | 0 2 1 0 7 1 1 0 2 0 0 0 0 0 IF IF IF %0 0 2 0 0 0 0 12 | 1 2 1 0 %2 2 1 0 1 0 4 0 0 0 %0 0 2 3 2 4 1 0 1 1 13 | 1 1 2 %0 %1 0 2 3 2 3 1 1 0 4 3 0 1 1 0 2 1 1 0 3 14 | 0 3 3 3 4 4 3 4 5 1 5 2 7 2 3 1 0 0 1 3 4 0 3 3 15 | 1 1 6 4 2 4 4 8 6 9 6 5 5 3 4 2 0 2 0 1 1 3 0 2 16 | 3 3 4 2 3 3 3 2 4 4 4 4 3 5 4 5 0 0 1 1 5 1 2 2 17 | 4 5 4 2 4 %2 8 2 2 4 1 2 2 1 0 2 0 0 1 3 4 0 4 2 18 | 4 2 4 0 5 5 %2 0 3 1 2 4 0 8 1 0 0 %2 2 3 1 4 3 1 19 | 1 1 1 1 1 5 0 %2 0 1 4 0 0 2 1 3 0 0 0 1 4 1 2 1 20 | 3 1 2 3 0 3 5 1 1 2 3 3 4 4 2 1 1 0 1 2 1 2 1 5 21 | 5 1 2 2 4 3 1 4 4 2 5 3 5 3 0 4 2 1 1 2 0 3 4 3 22 | 2 2 4 2 1 6 4 5 2 4 6 3 3 1 3 6 1 3 0 0 0 5 10 7 23 | 7 7 2 6 3 5 8 5 4 5 3 1 3 2 5 2 1 1 2 7 4 1 7 3 24 | 3 5 2 5 4 8 6 3 4 5 4 -- -- -- -- -- -- -- -- -- -- -- -- -- 25 | -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 26 | -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 27 | -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1 7 28 | 8 4 5 5 2 %2 %8 4 2 0 6 1 1 4 5 4 3 0 1 1 5 2 2 1 29 | 7 7 1 3 5 3 6 4 4 3 10 7 3 2 0 1 2 4 1 4 %3 2 2 6 30 | 2 1 4 3 4 3 7 9 6 5 4 2 1 1 0 1 1 0 0 1 1 2 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 | 1 02 | 03 | 04 | 1 05 | 06 | 07 | 08 | 1 09 | 10 | 1 11 | 12 | 13 | 14 | 15 | 16 | 17 | 1 1 1 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 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 ----------------------------------------------------------------------------- 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 | 5 5 7 8 12 8 11 -- -- %9 5 4 3 1 9 2 2 0 3 7 6 4 7 10 02 | 7 5 9 6 11 9 9 15 7 6 7 -- -- -- -- -- -- -- %2 3 5 4 12 9 03 | 6 6 9 10 7 9 7 5 8 13 5 4 3 4 0 1 4 0 1 4 6 6 13 %1 04 | 7 10 9 9 6 11 10 17 11 3 3 5 3 3 3 3 1 2 1 3 4 6 10 9 05 | 8 10 4 10 7 8 8 8 8 5 3 1 2 0 0 1 1 1 2 5 6 3 4 6 06 | 11 5 7 11 7 10 8 19 6 4 4 5 3 0 2 3 2 1 3 3 4 8 7 5 07 | 9 5 4 4 8 4 7 8 7 4 5 2 1 6 4 2 1 0 7 4 3 5 6 0 08 | 11 7 5 8 4 12 7 11 8 5 4 2 2 5 4 1 2 1 2 3 5 2 2 14 09 | 10 6 7 8 7 5 9 13 10 4 1 6 3 2 2 3 1 1 8 3 3 6 8 10 10 | 9 10 4 3 15 9 9 6 14 13 5 6 3 1 3 1 5 4 4 4 2 7 10 9 11 | 5 7 12 7 5 10 4 12 15 7 2 4 7 5 1 0 0 0 0 5 3 6 7 7 12 | 4 7 4 6 10 4 7 6 2 2 3 2 5 2 2 2 3 3 0 1 11 1 10 11 13 | 4 6 13 10 7 15 11 13 11 5 4 3 5 1 1 0 4 3 6 3 6 5 4 5 14 | 8 9 11 10 5 10 11 13 6 6 3 1 2 3 1 1 1 2 6 3 4 6 10 7 15 | 5 7 5 5 13 13 12 17 11 9 7 2 1 2 2 4 3 2 6 7 6 8 14 14 16 | 9 13 8 10 8 11 15 7 11 8 5 4 3 5 5 3 0 0 3 5 8 9 5 10 17 | 8 6 11 5 4 11 8 7 12 9 6 7 2 2 3 2 3 -- -- 3 4 9 10 7 18 | 7 7 8 13 6 12 15 11 10 8 4 3 3 3 1 2 1 3 3 1 3 10 6 8 19 | 9 3 9 11 5 12 6 13 11 8 4 1 2 3 2 1 0 0 1 3 5 4 6 6 20 | 6 5 6 4 10 7 16 10 %6 6 3 3 4 1 2 6 5 3 3 5 4 6 5 10 21 |%10 14 8 8 5 15 9 17 5 8 %4 %6 3 3 2 3 3 2 3 3 2 6 10 11 22 | 9 11 13 10 11 17 10 10 14 17 6 5 3 0 7 0 3 3 %4 2 5 3 5 11 23 | 13 12 15 16 11 13 7 16 9 9 3 2 1 2 3 1 2 0 2 2 4 6 5 4 24 | 10 10 13 5 5 9 17 9 10 14 5 2 1 3 4 2 3 2 3 4%13 13 10 3 25 | 10 7 8 13 7 10 10 12 13 8 10 3 2 1 2 %4 1 3 2%11 4 3 10 9 26 | 11 5 15 11 14 11 12 12 13 7 %5 3 1 2 8 1 3 2 4 4 4 3 8 11 27 | 10 %4 12 12 13 13 11 20 16 3 5 5 1 4 2 5 6 5 2 3 3 10 6 10 28 | 11 12 9 18 7 13 11 20 14 8 %4 5 8 1 1 1 2 3 5 6 8 7 7 8 29 | 12 4 8 14 12 15 11 15 19 7 5 6 2 0 6 2 0 3 0 2 6 7 9 9 30 | 6 13 7 8 8 10 16 16 10 7 5 3 3 2 %1 4 3 2 5 4 3 3 5 3 ---+------------------------------------------------------------------------ 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 1 03 | 04 | 1 05 | 1 06 | 1 1 07 | 1 08 | 09 | 1 10 | 1 1 1 11 | 1 1 12 | 1 13 | 1 1 1 14 | 1 15 | 2 16 | 17 | 1 1 18 | 19 | 1 1 20 | 21 | 1 1 22 | 2 3 1 1 23 | 1 1 1 1 1 24 | 3 2 25 | 26 | 1 27 | 1 28 | 29 | 1 1 30 | 1 1 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 Frequency: 116.900 MHz Transmitter Location: Chitose-VOR at Tomakomai city (141.7 E, 42.7 N) VOR Beacon for Air-flight (200W 30Hz AM, 116.900 MHz) Antenna : 5el-Yagi Horizon Receiver: AIRSPYmini 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 | 5 3 3 4 9 4 11 13 7 9 3 3 3 6 4 7 2 2 2 2 5 4 5 10 02 | 7 5 4 6 9 3 8 6 4 4 4 0 2 5 1 5 0 3 2 5 2 2 %8 %7 03 | 5 2 2 5 3 5 9 6 1 5 1 3 2 4 2 1 1 2 2 2 5 4 2 3 04 | 6 2 8 2 0 5 5 8 9 4 7 7 1 3 4 0 4 0 2 2 2 4 3 4 05 | 5 2 2 3 3 5 3 2 12 7 4 4 4 7 8 0 0 3 3 3 2 2 7 1 06 | 4 7 3 1 3 8 6 2 8 5 7 6 3 1 2 1 2 3 8 12 3 3 2 2 07 | 1 4 1 6 2 4 5 3 4 2 10 4 9 4 5 6 1 3 3 1 6 4 3 3 08 | 1 5 4 2 3 4 5 4 3 4 1 3 2 1 3 5 0 0 0 3 4 3 4 4 09 | 7 7 1 3 2 3 6 11 6 3 2 1 4 2 4 2 1 2 2 0 0 4 6 2 10 | 2 3 5 7 5 7 6 7 4 7 7 2 3 2 4 2 1 0 4 2 5 3 5 5 11 | 4 2 3 1 1 4 7 7 3 6 4 1 1 2 0 2 3 3 0 1 3 1 4 2 12 | 4 1 3 8 5 5 7 2 10 5 4 7 1 3 5 3 1 0 %2 0 7 4 4 7 13 | 1 2 5 1 3 0 2 8 5 4 2 1 2 4 4 3 2 3 1 0 3 3 5 3 14 | 5 3 3 5 5 4 1 9 6 8 5 4 4 1 2 2 3 1 1 5 3 2 3 5 15 | 5 0 2 7 4 8 9 6 7 4 3 3 0 2 2 5 3 4 1 3 3 2 7 4 16 | 4 7 1 4 3 4 7 6 7 3 1 1 0 3 1 0 1 2 2 3 5 2 4 3 17 | 3 5 5 1 2 8 7 8 5 7 4 0 3 4 2 3 0 4 1 2 4 5 5 4 18 | 1 4 1 4 1 4 5 6 2 5 3 2 3 4 3 2 0 1 0 2 1 4 4 7 19 | 5 2 3 6 2 2 8 3 6 3 1 2 3 1 2 4 0 1 0 3 2 2 3 4 20 | 3 4 3 2 6 2 3 4 9 3 3 6 0 2 4 4 1 1 0 3 5 4 5 1 21 | 3 3 3 2 3 3 7 6 5 %8 2 3 1 3 4 2 2 %0 1 2 4 6 5 4 22 | 7 7 0 3 2 6 9 5 4 9 5 3 2 7 2 3 2 2 1 5 1 9 5 7 23 | 5 12 8 4 7 10 7 5 6 5 5 2 1 3 6 5 2 1 1 2 1 4 4 5 24 | 1 2 3 2 3 7 10 7 3 7 2 2 1 7 2 2 2 3 2 4 4 2 1 4 25 | 9 5 4 2 1 5 8 11 8 7 1 3 3 3 2 2 1 0 4 1 3 3 11 4 26 | 3 3 2 4 5 4 7 6 6 3 5 1 2 3 11 %1 0 3 1 2 3 2 6 4 27 | 2 3 4 10 4 3 6 7 9 9 10 4 4 1 5 2 1 3 1 0 2 3 5 3 28 | 3 3 3 6 7 8 11 7 8 8 5 6 4 7 3 1 2 2 1 1 2 5 1 7 29 | 4 5 3 3 6 9 12 11 9 8 5 2 5 5 11 2 1 1 3 2 3 1 4 5 30 | 4 1 1 7 5 5 2 8 6 8 5 2 5 2 5 1 5 3 0 0 3 2 3 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 | 1 02 | 03 | 04 | 05 | 1 1 06 | 1 07 | 08 | 09 | 10 | 1 11 | 12 | 2 13 | 1 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 1 22 | 1 1 1 1 23 | 2 24 | 1 25 | 1 26 | 27 | 2 28 | 29 | 1 30 | 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 :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 2 3 7 1 3 3 3 3 0 1 1 1 4 0 0 0 1 2 4 1 2 2 02 | 1 3 2 3 0 3 1 3 1 0 2 0 2 0 0 0 0 %0 0 %0 %2 1 3 2 03 | 1 0 0 3 3 0 2 1 2 3 0 0 0 3 1 0 1 0 1 0 2 1 3 0 04 | 2 1 2 1 2 3 2 5 1 0 0 1 0 2 0 0 0 1 0 1 0 3 0 3 05 | 2 2 0 1 0 2 4 1 3 2 0 0 0 0 0 0 3 0 1 3 2 2 2 0 06 | 1 0 2 1 3 4 3 5 4 1 1 1 2 1 1 1 0 0 2 1 2 2 3 4 07 | 1 1 2 1 1 5 4 0 0 1 3 1 2 2 0 0 0 1 3 0 1 2 1 0 08 | 2 0 2 2 0 2 2 4 1 1 0 1 0 1 3 0 1 1 0 1 2 0 1 4 09 | 2 1 3 3 2 1 4 2 0 1 1 2 0 1 1 1 0 0 3 1 1 2 2 4 10 | 2 4 1 2 2 3 3 4 0 2 2 3 1 0 0 1 2 2 1 0 0 3 3 2 11 | 0 1 3 1 1 2 1 6 2 1 0 1 4 1 0 0 0 0 0 2 0 2 2 1 12 | 2 1 1 3 0 1 3 3 2 0 1 1 3 0 0 0 1 0 0 0 4 0 2 4 13 | 2 2 5 4 0 5 2 4 3 2 3 1 1 4 0 0 1 0 4 1 3 2 2 3 14 | 2 0 2 4 0 2 2 3 2 0 0 0 2 1 0 0 1 0 2 3 1 4 1 4 15 | 1 1 1 1 1 3 4 4 2 0 0 1 1 1 0 1 0 %0 -- -- -- -- 4 5 16 | 2 5 1 2 1 3 4 0 2 1 0 2 1 0 1 0 0 0 0 0 1 3 10 5 17 | 2 4 1 3 1 4 0 2 3 2 2 4 0 1 2 3 0 4 1 0 1 5 4 4 18 | 6 3 6 7 4 5 3 0 3 1 2 2 0 1 0 1 3 3 5 0 0 3 3 0 19 | 5 4 3 2 2 4 3 7 4 0 0 0 1 2 0 0 0 0 0 2 2 1 3 0 20 | 4 0 2 5 2 4 8 2 2 1 1 0 3 1 0 2 0 1 6 1 0 0 3 3 21 | 2 6 5 5 2 4 4 3 3 1 0 1 0 2 0 1 0 2 2 3 1 2 3 6 22 | 5 5 4 3 4 6 3 3 9 2 4 1 1 0 2 1 4 0 3 2 4 4 2 3 23 | 4 5 3 2 4 6 3 4 2 3 1 1 2 0 2 1 0 0 2 1 2 3 3 4 24 | 5 1 3 3 0 2 5 6 4 2 1 2 1 1 0 0 3 1 1 1 4 5 2 4 25 | 1 2 2 11 1 6 2 3 2 4 3 1 2 0 2 2 1 0 2 3 3 1 5 1 26 | 4 3 5 2 3 7 3 5 5 2 0 1 1 0 3 1 3 1 2 0 1 1 2 1 27 | 3 2 4 1 2 4 5 3 6 0 0 1 1 0 2 3 3 2 0 1 2 4 1 4 28 | 1 2 3 7 0 5 2 4 3 3 1 0 3 1 0 1 1 1 0 2 4 2 1 3 29 | 4 1 5 2 2 6 6 3 4 4 2 5 2 1 2 1 0 1 0 1 2 1 4 2 30 | 4 6 1 3 6 5 3 4 2 0 1 1 0 1 1 1 0 0 2 2 1 2 2 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 1 03 | 04 | 05 | 1 06 | 1 1 07 | 1 1 08 | 09 | 1 10 | 1 1 1 11 | 1 1 1 12 | 1 13 | 1 1 1 1 14 | 1 15 | 16 | 1 17 | 1 18 | 1 1 19 | 1 20 | 21 | 1 22 | 1 1 1 23 | 1 1 1 1 24 | 3 1 1 25 | 26 | 1 27 | 28 | 29 | 1 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 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 Transmitter Location:　 HAM beacon (50 W CW, 52.905 MHz), Higashimurayama, Tokyo, Japan Antenna : AF-4 (4el.) horizon, dir: west 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 | 0 | 0 | 1 | 1 | 0 | 2 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02 | 1 | 0 | 1 | 0 | 0 | 3 | 0 | 0 | 1 | 2 | 1 | 2 | 2 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 03 | 0 | 1 | 0 | 2 | 2 | 1 | 4 | 1 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 04 | 0 | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 3 | 0 | 0 | 2 | 06 | 2 | 2 | 0 | 0 | 0 | 1 | 2 | 2 | 0 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 07 | 0 | 2 | 3 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 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 | 2 | 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 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 11 | 1 | 1 | 1 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 4 | 2 | 12 | 4 | 0 | 3 | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 13 | 2 | 4 | 3 | 2 | 1 | 3 | 3 | 2 | 2 | 2 | 0 | 1 | 1 | 1 | 0 | 2 | 0 | 1 | 1 | 1 | 10 | 1 | 0 | 0 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 0 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 3 | 15 | 4 | 1 | 2 | 4 | 1 | 5 | 2 | 2 | 0 | 2 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 2 | 2 | 2 | 3 | 1 | 1 | 2 | 5 | 5 | 3 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 17 | 1 | 0 | 3 | 1 | 1 | 1 | 2 | 0 | 0 | 0 | 1 | 1 | 2 | 4 | 2 | 2 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 1 | 18 | 1 | 1 | 2 | 4 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 2 | 5 | 0 | 3 | 19 | 3 | 4 | 2 | 1 | 2 | 0 | 5 | 0 | 0 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 2 | 0 | 1 | 0 | 1 | 2 | 20 | 1 | 3 | 1 | 3 | 2 | 1 | 1 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 5 | 1 | 4 | 0 | 21 | 2 | 2 | 0 | 5 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 2 | 1 | 1 | 22 | 4 | 0 | 2 | 4 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 2 | 1 | 0 | 1 | 1 | 4 | 4 | 2 | 2 | 23 | 1 | 6 | 3 | 4 | 1 | 1 | 1 | 1 | 0 | 2 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 3 | 0 | 0 | 2 | 1 | 24 | 3 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 3 | 26 | 2 | 3 | 0 | 3 | 1 | 0 | 3 | 5 | 0 | 0 | 1 | 0 | 2 | 0 | 3 | 0 | 0 | 0 | 3 | 3 | 3 | 1 | 1 | 1 | 27 | 0 | 0 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 4 | 4 | 1 | 0 | 0 | 2 | 28 | 2 | 2 | 1 | 2 | 5 | 1 | 1 | 4 | 2 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 3 | 1 | 29 | 3 | 3 | 1 | 3 | 1 | 5 | 1 | 0 | 3 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 1 | 1 | 1 | 30 | 0 | 2 | 1 | 0 | 6 | 0 | 3 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 3 | 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 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 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 06 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 07 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 08 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 09 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 1 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 13 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 14 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 17 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 18 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 22 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 0 | 0 | 1 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 29 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 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|JST ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 01 | 18 | 31 | 21 | 29 | 25 | 40 | 49 | 33 | 17 | 22 | 27 | 22 | 21 | 14 | 18 | 14 | 9 | 7 | 1 | 4 | 0 | 11 | 14 | 6 | 02 | 10 | 6 | 14 | 19 | 22 | 11 | 16 | 12 | 12 | 21 | 19 | 16 | 12 | 17 | 2 | 2 | 3 | 1 | 1 | 4 | 4 | 1 | 3 | 8 | 03 | 14 | 9 | 7 | 18 | 20 | 18 | 35 | 18 | 10 | 17 | 5 | 1 | 7 | 6 | 13 | 3 | 2 | 5 | 0 | 4 | 5 | 4 | 9 | 15 | 04 | 18 | 20 | 13 | 10 | 6 | 5 | 22 | 25 | 27 | 21 | 14 | 14 | 17 | 4 | 7 | 14 | 8 | 1 | 13 | 3 | 11 | 11 | 24 | 19 | 05 | 26 | 22 | 15 | 22 | 24 | 37 | 36 | 33 | 30 | 33 | 26 | 30 | 5 | 24 | 17 | 9 | 6 | 10 | 16 | 6 | 0 | 13 | 26 | 24 | 06 | 0 | 0 | 18 | 21 | 28 | 21 | 34 | 29 | 26 | 11 | 0 | 20 | 13 | 12 | 24 | 14 | 12 | 4 | 1 | 1 | 5 | 14 | 15 | 25 | 07 | 25 | 21 | 17 | 17 | 36 | 16 | 21 | 29 | 17 | 22 | 8 | 12 | 15 | 12 | 14 | 9 | 8 | 6 | 8 | 14 | 9 | 14 | 15 | 18 | 08 | 15 | 19 | 22 | 19 | 30 | 33 | 25 | 40 | 30 | 31 | 30 | 14 | 11 | 22 | 8 | 14 | 0 | 6 | 0 | 4 | 0 | 0 | 0 | 14 | 09 | 20 | 17 | 15 | 10 | 24 | 20 | 19 | 28 | 34 | 20 | 12 | 13 | 12 | 12 | 7 | 8 | 9 | 3 | 8 | 19 | 11 | 12 | 19 | 23 | 10 | 20 | 25 | 18 | 26 | 32 | 37 | 45 | 44 | 40 | 22 | 19 | 12 | 5 | 0 | 5 | 12 | 4 | 11 | 6 | 12 | 15 | 13 | 20 | 14 | 11 | 20 | 21 | 13 | 15 | 22 | 16 | 19 | 22 | 13 | 10 | 17 | 20 | 19 | 18 | 18 | 5 | 6 | 4 | 4 | 7 | 12 | 12 | 20 | 19 | 12 | 20 | 20 | 20 | 30 | 31 | 23 | 32 | 29 | 21 | 15 | 20 | 18 | 12 | 12 | 22 | 12 | 8 | 4 | 9 | 2 | 2 | 6 | 16 | 32 | 13 | 14 | 15 | 10 | 28 | 21 | 36 | 26 | 26 | 26 | 24 | 18 | 12 | 16 | 9 | 14 | 12 | 8 | 5 | 9 | 10 | 16 | 43 | 18 | 52 | 14 | 26 | 23 | 23 | 24 | 28 | 33 | 47 | 28 | 31 | 18 | 22 | 22 | 17 | 25 | 23 | 12 | 7 | 12 | 8 | 16 | 16 | 22 | 20 | 2 | 15 | 18 | 12 | 3 | 13 | 24 | 22 | 30 | 30 | 8 | 22 | 18 | 19 | 5 | 0 | 7 | 22 | 6 | 10 | 12 | 14 | 17 | 7 | 6 | 6 | 16 | 14 | 11 | 15 | 15 | 28 | 34 | 36 | 31 | 16 | 15 | 18 | 13 | 22 | 15 | 14 | 19 | 10 | 6 | 8 | 10 | 16 | 11 | 16 | 16 | 17 | 21 | 18 | 14 | 11 | 17 | 22 | 29 | 24 | 24 | 12 | 12 | 11 | 18 | 13 | 24 | 11 | 7 | 2 | 6 | 10 | 9 | 6 | 4 | 10 | 18 | 9 | 7 | 11 | 11 | 13 | 12 | 11 | 15 | 16 | 6 | 6 | 10 | 11 | 6 | 0 | 5 | 3 | 4 | 6 | 5 | 1 | 0 | 14 | 15 | 19 | 20 | 15 | 14 | 5 | 12 | 17 | 35 | 20 | 21 | 10 | 5 | 7 | 7 | 15 | 9 | 8 | 6 | 2 | 8 | 3 | 13 | 6 | 8 | 12 | 20 | 16 | 8 | 19 | 17 | 12 | 34 | 18 | 23 | 21 | 18 | 8 | 14 | 7 | 20 | 13 | 6 | 7 | 7 | 6 | 11 | 5 | 13 | 7 | 16 | 21 | 14 | 24 | 13 | 17 | 20 | 17 | 24 | 21 | 29 | 13 | 20 | 15 | 10 | 15 | 8 | 1 | 6 | 4 | 8 | 10 | 12 | 13 | 13 | 18 | 22 | 10 | 19 | 15 | 18 | 16 | 17 | 36 | 30 | 28 | 17 | 16 | 13 | 14 | 13 | 2 | 12 | 6 | 3 | 8 | 10 | 9 | 15 | 23 | 19 | 23 | 19 | 16 | 14 | 22 | 14 | 38 | 38 | 36 | 20 | 6 | 9 | 6 | 20 | 11 | 11 | 7 | 8 | 6 | 8 | 15 | 9 | 17 | 17 | 15 | 24 | 13 | 13 | 12 | 16 | 28 | 22 | 23 | 26 | 19 | 19 | 16 | 1 | 11 | 15 | 13 | 7 | 5 | 5 | 4 | 11 | 7 | 11 | 15 | 14 | 25 | 11 | 23 | 14 | 15 | 21 | 35 | 26 | 27 | 21 | 17 | 11 | 13 | 10 | 26 | 12 | 6 | 9 | 5 | 9 | 4 | 9 | 10 | 16 | 16 | 26 | 16 | 11 | 23 | 17 | 16 | 30 | 31 | 26 | 34 | 19 | 14 | 8 | 2 | 15 | 23 | 21 | 0 | 6 | 1 | 6 | 13 | 11 | 15 | 18 | 27 | 19 | 21 | 14 | 13 | 23 | 26 | 26 | 28 | 19 | 13 | 19 | 4 | 14 | 13 | 12 | 8 | 6 | 4 | 11 | 6 | 11 | 14 | 14 |　 7 | 28 | 19 | 14 | 19 | 24 | 18 | 25 | 52 | 21 | 23 | 8 | 5 | 0 | 4 | 22 | 6 | 7 | 3 | 4 | 5 | 10 | 15 | 11 | 16 |　 9 | 29 | 2 | 21 | 17 | 25 | 19 | 22 | 28 | 36 | 26 | 23 | 5 | 10 | 13 | 11 | 22 | 18 | 6 | 4 | 6 | 8 | 19 | 14 | 16 | 18 | 30 | 12 | 17 | 18 | 16 | 45 | 49 | 30 | 34 | 34 | 28 | 21 | 11 | 22 | 10 | 12 | 9 | 10 | 6 | 10 | 7 | 　9 | 14 | 20 | 15 | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 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 | 1 | 2 | 1 | 0 | 0 | 3 | 1 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 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 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 04 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 06 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 07 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 09 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 13 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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 | 1 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 1 | 1 | 2 | 0 | 2 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 26 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 0 | 0 | 0 | 0 | 1 | 0 | 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 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 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 Location: Mitane, Akita, Japan (140.0 E, 40.1 N) Frequency: 52.905 MHz Transmitter Location: HAM beacon (50 W CW, 52.905 MHz), Higashimurayama, Tokyo, Japan Antenna : DIAMOND A502HBR2 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|JST ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 01 | 11 | 6 | 12 | 17 | 21 | 10 | 10 | 11 | 3 | 1 | 3 | 3 | 5 | 1 | 9 | 2 | 0 | 0 | 2 | 3 | 0 | 1 | 2 | 1 | 02 | 5 | 8 | 7 | 3 | 7 | 2 | 7 | 10 | 5 | 4 | 2 | 2 | 5 | 5 | 1 | 1 | 3 | 0 | 1 | 3 | 4 | 5 | 4 | 3 | 03 | 5 | 7 | 7 | 10 | 13 | 8 | 7 | 4 | 6 | 5 | 2 | 0 | 1 | 3 | 4 | 0 | 1 | 7 | 3 | 4 | 5 | 4 | 5 | 4 | 04 | 5 | 5 | 5 | 3 | 2 | 6 | 8 | 7 | 2 | 4 | 3 | 3 | 3 | 2 | 5 | 1 | 3 | 2 | 2 | 0 | 7 | 2 | 6 | 5 | 05 | 9 | 7 | 14 | 11 | 9 | 11 | 5 | 3 | 3 | 3 | 3 | 2 | 2 | 0 | 2 | 1 | 0 | 3 | 1 | 0 | 2 | 2 |??? |??? | 06 |??? |??? |??? |??? |??? |??? |??? |??? | 8 | 2 | 4 | 5 | 6 | 2 | 6 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 4 | 5 | 07 | 0 | 3 | 5 | 3 | 7 | 3 | 7 | 4 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 3 | 2 | 2 | 3 | 3 | 1 | 3 | 4 | 08 | 2 | 4 | 6 | 3 | 4 | 7 | 4 | 7 | 5 | 5 | 2 | 0 | 1 | 1 | 3 | 1 | 1 | 0 | 1 | 3 | 2 | 4 | 2 | 2 | 09 | 2 | 0 | 7 | 7 | 3 | 1 | 9 | 7 | 5 | 5 | 1 | 1 | 1 | 0 | 0 | 2 | 1 | 0 | 3 | 3 | 6 | 6 | 8 | 7 | 10 | 3 | 3 | 3 | 6 | 7 | 4 | 2 | 5 | 7 | 2 | 4 | 0 | 1 | 0 | 2 | 2 | 1 | 2 | 2 | 0 | 0 | 1 | 1 | 2 | 11 | 1 | 2 | 4 | 2 | 7 | 2 | 3 | 5 | 3 | 7 | 0 | 2 | 3 | 4 | 7 | 1 | 0 | 2 | 1 | 2 | 3 | 3 | 4 | 4 | 12 | 2 | 4 | 3 | 4 | 16 | 5 | 4 | 11 | 5 | 4 | 4 | 0 | 6 | 2 | 2 | 0 | 2 | 4 | 2 | 2 | 4 | 2 | 0 | 6 | 13 | 0 | 5 | 6 | 6 | 2 | 6 | 2 | 2 | 5 | 0 | 0 | 0 | 0 | 2 | 0 | 4 | 4 | 2 | 2 |??? | 2 | 7 | 2 | 5 | 14 | 2 | 6 | 3 | 2 | 1 | 3 | 3 | 5 | 4 | 3 | 1 | 0 | 2 | 4 | 5 | 4 | 3 | 2 | 2 | 2 | 2 | 4 | 2 | 1 | 15 | 6 | 2 | 6 | 1 | 6 | 6 | 7 | 6 | 1 | 6 | 3 | 2 | 2 | 1 | 2 | 3 | 1 | 1 | 3 | 1 | 1 | 3 | 5 | 1 | 16 | 2 | 5 | 2 | 3 | 6 | 3 | 5 | 7 | 4 | 4 | 1 | 2 | 3 | 1 | 0 | 4 | 3 | 0 | 0 | 1 | 2 | 1 | 2 | 2 | 17 | 3 | 2 | 2 | 3 | 0 | 1 | 3 | 2 | 3 | 2 | 1 | 2 | 2 | 0 | 3 | 2 | 2 | 0 | 1 | 0 | 2 | 6 | 4 | 2 | 18 | 6 | 3 | 3 | 9 | 5 | 3 | 8 | 8 | 8 | 3 | 3 | 0 | 4 | 2 | 5 | 1 | 3 | 3 | 4 | 6 | 0 | 4 | 2 | 1 | 19 | 4 | 6 | 4 | 0 | 4 | 8 | 10 | 13 | 6 | 4 | 2 | 4 | 0 | 4 | 2 | 3 | 4 | 1 | 2 | 2 | 3 | 0 | 2 | 3 | 20 | 4 | 0 | 5 | 4 | 3 | 9 | 6 | 6 | 8 | 0 | 2 | 2 | 1 | 3 | 3 | 0 | 3 | 0 | 0 | 4 | 0 | 5 | 6 | 4 | 21 | 2 | 5 | 5 | 5 | 4 | 6 | 6 | 0 | 12 | 4 | 1 | 1 | 1 | 2 | 7 | 2 | 0 | 2 | 3 | 4 | 5 | 1 | 2 | 1 | 22 | 2 | 7 | 3 | 4 | 6 | 1 | 5 | 7 | 12 | 2 | 2 | 5 | 2 | 2 | 5 | 3 | 0 | 1 | 4 | 0 | 5 | 6 | 6 | 5 | 23 | 10 | 4 | 4 | 3 | 1 | 17 | 11 | 15 | 3 | 2 | 2 | 2 | 3 | 1 | 0 | 2 | 3 | 0 | 2 | 2 | 1 | 3 | 7 | 4 | 24 | 3 | 6 | 0 | 5 | 5 | 0 | 8 | 5 | 1 | 11 | 2 | 0 | 3 | 1 | 5 | 3 | 2 | 1 | 3 | 2 | 0 | 3 | 1 | 2 | 25 | 1 | 3 | 5 | 3 | 6 | 11 | 5 | 10 | 2 | 6 | 5 | 3 | 4 | 5 | 3 | 2 | 4 | 1 | 2 | 1 | 3 | 6 | 7 | 4 | 26 | 3 | 5 | 5 | 4 | 11 | 5 | 4 | 6 | 4 | 1 | 3 | 1 | 2 | 3 | 7 | 2 | 1 | 2 | 0 | 3 | 4 | 6 | 8 | 5 | 27 | 3 | 7 | 4 | 5 | 13 | 19 | 13 | 10 | 4 | 5 | 7 | 0 | 1 | 1 | 2 | 3 | 1 | 2 | 1 | 1 | 1 | 2 | 0 | 1 | 28 | 4 | 4 | 1 | 4 | 7 | 4 | 16 | 6 | 4 | 1 | 0 | 0 | 1 | 4 | 2 | 2 | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 29 | 5 | 2 | 1 | 2 | 2 | 2 | 1 | 6 | 6 | 4 | 0 | 3 | 3 | 2 | 6 | 2 | 0 | 1 | 2 | 4 | 1 | 3 | 2 | 4 | 30 | 1 | 2 | 0 | 3 | 5 | 10 | 7 | 6 | 5 | 7 | 4 | 2 | 4 | 9 | 1 | 3 | 1 | 1 | 3 | 0 | 2 | 1 | 4 | 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|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 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 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 | 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 | 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? | 06 |??? |??? |??? |??? |??? |??? |??? |??? | 1 | 0 | 0 | 0 | 1 | 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 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 1 | 0 | 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 | 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 | 1 | 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 | 0 | 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 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 0 | 0 | 0 | 0 | 1 | 0 | 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 ----------------------------------------------------------------------------- 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 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 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |Mar 01 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 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 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 04 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 06 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 07 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 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 | 1 | 0 | 1 | 1 | 1 | 0 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 2 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 2 | 14 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 1 | 0 | 27 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 29 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 30 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 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 | 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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 | 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 | 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 | 1 | 14 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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 | 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 | 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 | 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 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 4 | 7 | 4 | 9 | 8 | 12 | 2 | 2 | 5 |Mar 01 | 4 | 1 | 0 | 2 | 1 | 0 | 0 | 1 | 1 | 0 | 2 | 0 | 0 | 4 | 4 | 5 | 4 | 4 | 5 | 5 | 4 | 4 | 4 | 5 | 02 | 3 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 3 | 2 | 1 | 4 | 7 | 5 | 1 | 7 | 7 | 4 | 2 | 1 | 0 | 03 | 0 | 3 | 2 | 2 | 2 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 6 | 4 | 5 | 9 | 4 | 5 | 5 | 2 | 5 | 1 | 0 | 04 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? | 4 | 6 | 8 | 7 | 7 | 4 | 0 | 1 | 05 | 1 | 0 | 1 | 0 | 0 | 3 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 4 | 3 | 7 | 3 | 5 | 2 | 2 | 0 | 0 | 06 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 3 | 3 | 2 | 4 | 4 | 5 | 6 | 1 | 0 | 07 | 0 | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 1 | 2 | 0 | 0 | 6 | 5 | 3 | 6 | 1 | 6 | 3 | 0 | 1 | 08 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 5 |??? |??? |??? | 3 | 4 | 4 | 2 | 3 | 1 | 1 | 09 | 0 | 1 | 0 | 0 | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 4 | 4 | 1 | 3 | 3 | 3 | 1 | 1 | 2 | 10 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 1 | 0 | 2 | 1 | 0 | 0 |??? | 4 | 7 | 6 | 4 | 5 | 4 | 7 | 6 | 3 | 3 | 11 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 2 | 1 | 4 | 5 | 3 | 6 | 7 | 3 | 8 | 4 | 0 | 1 | 12 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 3 | 2 | 2 | 4 | 5 | 0 | 1 | 6 | 6 | 3 | 0 | 13 | 3 | 1 | 3 | 2 | 1 | 1 | 1 | 0 | 0 | 2 | 2 | 1 | 0 | 4 | 4 | 5 | 5 | 9 | 3 | 2 | 2 | 7 | 4 | 4 | 14 | 0 | 1 | 2 | 1 | 2 | 1 | 0 | 0 | 1 | 2 | 0 | 1 | 1 | 1 | 2 | 2 | 6 | 6 | 6 | 3 | 0 | 4 | 1 | 4 | 15 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 4 | 1 | 3 | 3 | 2 | 6 | 1 | 1 | 16 | 1 | 1 | 0 | 0 | 1 | 3 | 2 | 0 | 0 | 0 | 0 | 1 | 3 | 1 | 4 | 0 | 10 | 3 | 6 | 6 | 4 | 4 | 2 | 2 | 17 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 3 | 3 | 3 | 1 | 1 | 1 | 1 | 3 | 0 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 7 | 0 | 3 | 3 | 1 | 1 | 0 | 0 | 19 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 2 | 5 | 2 | 1 | 3 | 2 | 7 | 3 | 0 | 20 | 1 | 0 | 0 | 5 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 2 | 2 | 1 | 11 | 5 | 4 | 7 | 3 | 2 | 1 | 0 | 0 | 21 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 2 | 0 | 1 | 1 | 4 | 1 | 5 | 7 | 7 | 3 | 4 | 22 | 0 | 4 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 4 | 5 | 4 | 2 | 3 | 4 | 2 | 5 | 2 | 4 | 23 | 5 | 1 | 1 | 2 | 1 | 0 | 2 | 2 | 1 | 0 | 1 | 2 | 0 | 0 | 3 | 4 | 4 | 5 | 3 | 4 | 3 | 8 | 1 | 5 | 24 | 2 | 1 | 4 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 2 | 1 | 2 | 3 | 4 | 3 | 3 | 2 | 2 | 3 | 5 | 3 | 2 | 25 | 0 | 1 | 0 | 3 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 1 | 4 | 3 | 4 | 6 | 2 | 1 | 5 | 5 | 0 | 3 | 26 | 1 | 3 | 0 | 4 | 2 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 9 | 1 | 3 | 3 | 4 | 5 | 3 | 4 | 3 | 27 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 7 | 0 | 4 | 0 | 2 | 28 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 5 | 4 | 3 | 3 | 4 | 4 | 7 | 3 | 6 | 0 | 0 | 29 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 2 | 5 | 3 | 3 | 4 | 1 | 7 | 9 | 7 | 1 | 2 | 0 | 30 | 2 | 0 | 0 | 2 | 2 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 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 | 1 | 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 | 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 | 05 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? | 0 | 0 | 0 | 1 | 1 | 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 | 1 | 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 | 1 | 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 | 0 | 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 | 1 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 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 | 27 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 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 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 3 | 2 | 3 | 3 | 7 | 2 | 3 | 2 | 3 |Mar 01 | 3 | 4 | 6 | 5 | 4 | 5 | 5 | 0 | 1 | 1 | 2 | 1 | 1 | 1 | 2 | 6 | 1 | 7 | 3 | 1 | 3 | 2 | 4 | 3 | 02 | 2 | 6 | 0 | 3 | 1 | 4 | 2 | 0 | 2 | 1 | 1 | 2 | 2 | 0 | 2 | 3 | 6 | 1 | 2 | 2 | 1 | 7 | 4 | 4 | 03 | 3 | 6 | 4 | 4 | 7 | 4 | 2 | 3 | 0 | 1 | 0 | 1 | 1 | 3 | 0 | 1 | 6 | 1 | 4 | 2 | 2 | 4 | 5 | 3 | 04 | 0 | 1 | 5 | 2 | 4 | 4 | 0 | 2 | 1 | 1 | 0 | 3 | 2 | 0 | 4 | 9 | 2 | 4 | 1 | 1 | 2 | 3 | 5 | 4 | 05 | 7 | 2 | 8 | 2 | 7 | 4 | 0 | 2 | 1 | 1 | 2 | 0 | 2 | 0 | 2 | 3 | 8 | 4 | 2 | 0 | 6 | 0 | 2 | 3 | 06 | 4 | 2 | 1 | 5 | 4 |??? |??? | 2 | NS | NS | 0 | 2 | 3 | 6 | 6 | 9 | 9 | 8 | 6 | 6 | 3 | 7 | 5 | 8 | 07 | 8 | 12 | 12 | 8 | 8 | 10 | 7 | 3 | 1 | 2 | 0 | 0 | 1 | 1 | 2 | 7 | 7 | 8 | 7 | 4 | 8 | 5 | 9 | 14 | 08 | 8 | 11 | 11 | 15 | 13 | 7 | 3 | 3 | 0 | 0 | 0 | 1 | 0 | 3 | 6 | 6 | 6 | 12 | 6 | 5 | 8 | 6 | 9 | 11 | 09 | 6 | 13 | 9 | 9 | 9 | 6 | 3 | 1 | 2 | 2 | 0 | 2 | 2 | 3 | 4 | 7 | 9 | 8 | 6 | 10 | 4 | 8 | 10 | 11 | 10 | 13 | 16 | 10 | 5 | 6 | 7 | 3 | 2 | 0 | 0 | 1 | 2 | 2 | 3 | 6 | 2 | 3 | 15 | 6 | 2 | 8 | 5 | 4 | 11 | 11 | 8 | 7 | 5 | 8 | 5 | 3 | 10 | 1 | 2 | 0 | 2 | 0 | 2 | 1 | 2 | 5 | 9 | 9 | 7 | 7 | 7 | 7 | 7 | 8 | 12 | 5 | 16 | 8 | 7 | 7 | 13 | 3 | 2 | NS | NS | NS | 4 | 0 | 2 | 8 | 11 | 6 | 3 | 3 | 4 | 4 | 9 | 7 | 4 | 13 | 16 | 6 | 7 | 7 | 11 | 10 | 2 | 1 | NS | 2 | 1 | 0 | 6 | 6 | 3 | 5 | 5 | 8 | 12 | 2 | 2 | 8 | 6 | 8 | 14 | 10 | 8 | 18 | 19 | 7 | 4 | 5 | 3 | 4 | 4 | 1 | 2 | 3 | 4 | 5 | 3 | 13 | 8 | 3 | 9 | 6 | 5 | 15 | 10 | 15 | 8 | 8 | 7 | 14 | 5 | 2 | 4 | 1 | 0 | 2 | 2 | 2 | 2 | 3 | 3 | 6 | 10 | 12 | 4 | 5 | 8 | 9 | 13 | 10 | 16 | 10 | 6 | 11 | 10 | 8 | 8 | 4 | 0 | NS | 0 | 2 | 3 | 5 | 7 | 4 | 10 | 14 | 5 | 13 | 6 | 9 | 5 | 6 | 6 | 17 | 8 | 13 | 16 | 14 | 8 | 7 | 7 | NS | NS | 2 | 0 | 0 | 3 | 4 | 1 | 10 | 8 | 12 | 5 | 8 | 6 | 4 | 3 | 7 | 18 | 12 | 10 | 8 | 12 | 10 | 6 | 3 | 2 | 3 | 0 | 3 | 0 | 3 | 7 | 3 | 3 | 11 | 8 | 7 | 8 | 3 | 6 | 9 | 14 | 19 | 8 | 9 | 11 | 11 | 9 | 6 | 2 | 3 | 2 | 0 | 1 | 2 | 3 | 3 | 3 | 9 | 5 | 10 | 5 | 6 | 4 | 9 | 11 | 4 | 20 | 7 | 17 | 16 | 15 | 14 | 4 | 0 | 0 | 0 | NS | 1 | 2 | 2 | 9 | 7 | 7 | 6 | 7 | 6 | 12 | 8 | 6 | 6 | 9 | 21 | 15 | 15 | 17 | 15 | 7 | 7 | 5 | 1 | 1 | 1 | 1 | 1 | 6 | 3 | 2 | 7 | 6 | 9 | 15 | 14 | 9 | 9 | 12 | 12 | 22 | 9 | 17 | 18 | 21 | 13 | 12 | 3 | 5 | 0 | 0 | 3 | 1 | 3 | 6 | 5 | 10 | 8 | 6 | 6 | 8 | 8 | 8 | 8 | 8 | 23 | 7 | 12 | 11 | 10 | 4 | 12 | 5 | 1 | 0 | NS | 2 | 3 | 1 | 7 | 8 | 10 | 4 | 8 | 4 | 8 | 13 | 12 | 13 | 8 | 24 | 7 | 15 | 16 | 11 | 10 | 8 | NS | 3 | NS | NS | 0 | 2 | 5 | 3 | 8 | 9 | 5 | 8 | 5 | 10 | 9 | 3 | 14 | 9 | 25 | 14 | 14 | 19 | 20 | 11 | NS | 5 | 1 | 2 | 2 | 1 | 4 | 2 | 3 | 1 | 10 | 7 | 9 | 12 | 10 | 9 | 11 | 12 | 14 | 26 | 16 | 19 | 13 | 17 | 14 | 11 | 7 | NS | NS | NS | 1 | 0 | 1 | 3 | 8 | 10 | 7 | 9 | 5 | 12 | 4 | 10 | 7 | 9 | 27 | 17 | 10 | 22 | 9 | 18 | 8 | 10 | 2 | 0 | 3 | 0 | 4 | 2 | 7 | 6 | 8 | 5 | 13 | 11 | 11 | 7 | 8 | 8 | 15 | 28 | 8 | 14 | 16 | 11 | 10 | 3 | 4 | NS | 1 | 1 | 2 | 3 | 4 | 4 | 5 | 10 | 8 | 8 | 7 | 11 | 9 | 8 | 9 | 13 | 29 | 14 | 12 | 23 | 13 | 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|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 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 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 | 1 | 05 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 06 | 0 | 0 | 0 | 1 | 0 |??? |??? | 0 | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 07 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 08 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 10 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 13 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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 | 1 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 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 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 21 | 1 | 0 | 0 | 0 | 0 | 0 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 23 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 25 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 27 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 29 | 1 | 0 | 1 | 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 50W CW, 52.905 MHz), Higashimurayama, Tokyo, Japan Antenna : GP (DAIMOND 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 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 1 | 6 | 1 | 2 | 9 | 5 | 5 | 7 | 3 |Mar 01 | 9 | 2 | 2 | 5 | 3 | 11 | 3 | 3 | 3 | 3 | 0 |??? |??? | 4 |??? |??? |??? |??? |??? |??? |??? |??? |??? | 5 | 02 | 8 | 6 | 2 | 3 | 0 | 1 | 5 | 2 | 1 | 1 | 3 | 1 | 1 | 3 | 0 | 0 | 3 | 0 | 4 | 3 | 2 | 2 | 0 | 4 | 03 | 2 | 4 | 3 | 1 | 0 | 2 | 1 | 3 | 0 | 0 | 2 | 1 | 0 | 2 | 0 | 3 | 3 | 0 | 2 | 0 | 3 | 6 | 3 | 6 | 04 | 0 | 0 | 2 | 0 | 2 | 6 | 1 | 2 | 3 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 3 | 2 | 0 | 1 | 2 | 5 | 1 | 2 | 05 | 4 | 2 | 1 | 0 | 4 | 4 | 3 | 2 | 2 | 3 | 5 | 4 | 0 | 2 | 1 | 3 | 0 | 9 | 2 | 1 | 2 | 6 | 8 | 8 | 06 | 1 | 2 | 1 | 3 | 3 | 3 | 4 | 1 | 3 | 1 | 2 | 2 | 2 | 1 | 4 | 4 | 1 | 0 | 0 | 2 | 3 | 8 | 2 | 7 | 07 | 3 | 5 | 1 | 3 | 5 | 7 | 5 | 3 | 4 | 3 | 1 | 0 | 4 | 0 | 1 | 1 | 3 | 4 | 2 | 2 | 0 | 2 | 5 | 1 | 08 | 4 | 0 | 1 | 5 | 6 |??? | NS | 0 | 0 | 2 | 1 | 4 | 1 | 1 | 3 | 0 | 0 | 1 | 0 | 0 | 4 | 8 | 1 | 5 | 09 | 5 | 1 | 0 | 0 | 2 | 1 | 2 |??? | 2 | 2 | 3 | 2 | 2 | 2 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 10 |??? | 5 | 1 | 2 | 2 | 4 | 5 | 5 | 3 | 1 | 0 | 0 | 3 | 3 | 3 | 0 | 4 | 5 | 2 | 1 | 7 | 4 | 4 | 5 | 11 | 5 | 5 | 8 | 5 | 3 | 3 | 0 | 1 | 1 | 4 | 1 | 1 | 6 | 3 | 1 | 0 | 0 | 3 | 3 | 4 | 7 | 6 | 1 | 6 | 12 | 5 | 5 | 6 | 3 | 1 | 3 | 2 | 2 | 7 | 6 | 2 | 7 | 1 | 4 | 4 | 1 | 1 | 1 | 1 | 2 | 3 | 9 | 3 | 10 | 13 | 3 | 5 | 3 | 11 | 6 | 5 | 3 | 4 | 5 | 4 | 4 | 5 | 1 | 0 | 2 | 2 | 1 | 2 | 0 | 0 | 0 | 2 | 1 | 5 | 14 | 5 | 4 | 3 | 2 | 1 | 4 | 3 | 2 | 2 | 0 | 0 | 3 | 1 | 4 | 0 | 2 | 4 | 0 | 1 | 6 | 6 | 13 | 9 | 6 | 15 | 2 | 3 | 2 | 1 | 9 | 3 | 4 | 2 | 5 | 2 | 0 | 2 | 0 | 2 | 1 | 1 | 0 | 2 | 2 | 1 | 4 | 1 | 2 | 3 | 16 | 10 | 2 | 2 | 6 | 6 | 14 | 3 | 1 | 3 | 4 | 1 | 2 | 3 | 2 | 2 | 3 | 4 | 3 | 1 | 4 | 3 | 3 | 3 | 0 | 17 | 3 | 2 | 5 | 3 | 2 | 8 | 2 | 1 | ES | 3 | 1 | 2 | 3 | 2 | 1 | 0 | 1 | 2 | 0 | 0 | 3 | 9 | 6 | 6 | 18 | 8 | 8 | 5 | 6 | 7 | 2 | 0 | 1 | 5 | 1 | 1 | 1 | 2 | 0 | 2 | 3 | 0 | 4 | 2 | 2 | 5 | 2 | 5 | 5 | 19 | 1 | 6 | 1 | 5 | 1 | 7 | 2 | 0 | 0 | 0 | 4 | 3 | 1 | 2 | 1 | 0 | 2 | 3 | 3 | 3 | 2 | 7 |??? |??? | 20 | 6 | 8 | 3 | 3 | 3 | 4 | 2 | 3 | 4 | 0 | 2 | 2 | 0 | 1 | 1 | 3 | 7 | 3 | 8 | 7 | 3 | 4 | 0 | 4 | 21 | 4 | 1 | 1 | 4 | 1 | 6 | 0 | 4 | 2 | 3 | 2 | 2 | 1 | 2 | 1 | 3 | 2 | 1 | 2 | 5 | 6 | 4 | 2 | 5 | 22 | 2 | 4 | 2 | 2 | 6 | 7 | 7 | 1 | 3 | 2 | 2 | 0 | 1 | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 6 | 5 |??? | 10 | 23 | 11 | 7 | 3 | 2 | 4 | 7 | 5 | 3 | 2 | 1 | 0 | 1 | 2 | 3 | 1 | 3 | 3 | 5 |??? |??? |??? |??? | 4 | 5 | 24 | 7 | 6 | 3 | 1 | 5 | 2 | 1 | 3 | 1 | 1 | 0 | 3 | 5 | 4 | 4 |??? |??? |??? |??? |??? |??? |??? | 10 | 5 | 25 | 4 | 9 | 4 | 5 | 2 | 3 | 3 | 4 | 3 | 3 | 1 | 0 | 1 | 2 | 0 | 1 | 3 | 1 | 5 | 2 | 6 | 3 | 5 | 3 | 26 | 3 | 2 | 2 | 5 |??? |??? | 4 | 5 | 2 | 1 | 2 | 0 | 2 | 2 | 2 | 1 | 0 | 4 | 2 | 3 | 5 | 5 | 2 | 2 | 27 | 3 | 5 | 2 |??? |??? | 2 | 7 | 6 | 5 | 4 | 0 | 2 | 3 | 3 | 1 | 4 | 3 | 2 | 4 | 5 | 7 | 6 | 9 | 6 | 28 | 3 | 1 | 6 |??? |??? | 1 | 3 | 5 | 4 | 1 | 4 | 3 | 3 | 1 | 1 | 0 | 3 | 9 | 4 | 6 | 8 | 5 | 7 | 7 | 29 | 4 | 3 | 6 | 6 | 2 | 9 | 0 | 2 | 3 | 1 | 7 | 2 | 2 | 1 | 1 | 5 | 2 | 0 | 3 | 2 |??? |??? | 4 | 4 | 30 | 3 | 6 | 4 | 3 | 7 | 4 | 2 | 1 | 6 | 2 | 2 | 2 | 2 | 4 | 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 | 1 | 0 | 0 | 1 | 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 | 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 06 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 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 |??? | NS | 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 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 10 |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 11 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 13 | 1 | 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 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | ES | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 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 |??? |??? | 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 | 1 | 22 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |??? | 0 | 23 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |??? |??? |??? |??? | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? | 1 | 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 | 1 | 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 | 1 | 0 | 0 | 28 | 0 | 0 | 0 |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 29 | 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 | 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 -------------------------------------------------------------------------------- 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 2025.05.06