Radio Meteor Observation in Japan No.270 April 2024 - English : https://www.iprmo.org - Japanese: https://www.amro-net.jp ----------------------------------------------------------------------------- Observer : Kenji Fujito Location : Yokkaichi, Mie, Japan (34.96 N, 136.61 E) Frequency: 53.755 MHz Transmitter Location: Fukui Prefectural University at Eiheiji town (136.3 E, 36.1 N) HAM beacon (JH9YYA) for RMO (50 W CW, 53.755 MHz) No modulation except for identification 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 | 1 1 4 1 1 2 0 3 3 0 %0 NS 1 0 2 1 2 1 0 3 1 0 6 8 02 | 13 9 5 10 11 6 7 7 2 3 7 8 5 0 1 1 1 0 1 1 3 2 4 3 03 | 7 8 2 6 8 2 6 5 7 4 3 5 2 2 6 2 1 2 2 2 2 6 4 5 04 | 8 1 8 7 6 1 6 3 6 7 6 4 4 3 3 3 3 2 1 0 2 2 3 3 05 | 4 13 5 4 5 6 5 5 4 9 4 4 5 7 3 6 0 0 0 2 3 6 3 7 06 | 7 15 7 11 7 10 14 7 5 6 7 2 2 3 2 3 0 1 1 1 2 3 2 1 07 | 2 2 5 2 5 7 5 5 6 1 2 2 3 1 0 1 0 1 2 3 1 2 0 1 08 | 2 8 4 6 3 2 6 2 4 0 3 1 0 1 0 0 0 0 0 0 0 1 1 3 09 | 2 7 6 4 1 1 5 1 10 23 10 13 6 5 3 6 0 1 2 0 2 5 11 13 10 | 13 10 10 14 9 14 14 6 5 8 %0 %3 %1 %0 1 0 0 0 0 1 0 0 3 5 11 | 3 4 3 1 1 1 2 1 1 2 2 1 0 0 1 0 1 0 1 0 3 1 1 4 12 | 1 3 5 4 1 2 3 4 5 1 0 1 0 1 0 1 0 0 2 0 2 2 4 1 13 | 5 1 1 3 1 4 4 4 4 1 0 0 1 1 1 0 2 1 0 0 2 0 2 2 14 | 2 2 3 1 0 2 1 5 2 2 2 1 1 1 0 0 0 1 0 1 3 0 1 1 15 | 4 2 4 2 3 2 4 3 1 1 2 1 0 0 0 2 2 0 1 1 1 0 0 3 16 | 1 3 1 1 2 5 1 0 3 0 3 1 2 1 2 1 0 0 2 1 1 0 2 2 17 | 1 1 2 7 3 0 2 3 2 4 4 NS NS NS NS NS NS NS 0 0 1 0 2 4 18 | 3 6 4 3 1 1 4 1 3 2 1 1 2 3 2 0 0 0 0 0 1 4 5 7 19 | 12 8 8 4 5 4 1 1 0 0 NS NS %0 0 1 0 NS NS %0 1 2 3 4 0 20 | 9 7 7 9 2 7 3 1 3 3 1 0 2 3 0 3 1 0 1 1 1 4 3 5 21 | 5 2 3 5 3 7 4 5 7 6 1 3 1 3 3 3 1 0 1 0 2 0 3 8 22 | 5 9 6 6 7 12 7 2 4 7 4 2 6 1 2 2 0 0 1 1 2 1 1 5 23 | 5 4 6 4 1 5 4 4 5 4 4 4 6 2 3 3 0 0 3 0 0 2 0 3 24 | 4 10 7 7 2 3 8 4 2 4 1 0 2 2 1 1 1 0 0 0 1 0 1 4 25 | 0 3 2 3 2 3 1 1 1 4 0 0 4 1 0 1 0 0 0 0 1 4 2 3 26 | 7 2 11 12 9 12 9 7 4 %3 2 1 3 6 2 1 0 0 1 4 2 1 5 3 27 | 7 4 5 6 6 9 6 4 7 5 1 1 4 6 3 2 1 0 3 5 1 6 2 4 28 | 8 8 2 8 3 7 6 3 5 4 5 1 %3 NS NS %0 0 0 1 3 5 3 5 1 29 | 2 2 4 6 2 7 5 2 4 4 4 7 5 1 4 1 1 3 0 1 3 1 1 5 30 | 2 0 4 7 3 2 5 6 4 3 2 2 1 3 3 0 2 0 2 0 1 4 4 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 | 04 | 1 05 | 06 | 1 07 | 08 | 09 | 1 10 | 11 | 12 | 1 13 | 1 14 | 1 15 | 16 | 17 | 18 | 1 19 | 20 | 21 | 22 | 1 1 23 | 1 1 24 | 1 25 | 26 | 1 27 | 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 Frequency: 53.7548MHz Transmitter Location: Katsuura, Chiba, 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 ---+------------------------------------------------------------------------ 21 | 0 0 0 0 0 0 0 0 0 0 %0 1 0 0 1 0 1 1 1 0 2 1 3 4 22 | 2 2 1 1 3 1 3 4 3 1 2 1 2 6 1 0 1 1 2 2 2 4 4 0 23 | 2 3 9 3 2 7 6 3 5 3 2 1 2 3 1 0 0 0 1 0 2 1 5 3 24 | 0 3 3 3 3 8 4 4 4 4 3 1 3 0 2 1 0 0 0 3 1 1 5 2 25 | 2 3 1 3 4 3 9 2 1 3 1 1 3 0 2 0 0 0 NS %0 0 1 2 1 26 | 2 2 4 4 5 4 5 5 9 %7 1 0 1 0 2 0 2 1 1 0 1 4 2 3 27 | 1 1 1 1 2 5 1 2 3 4 2 0 1 0 0 1 0 0 1 1 0 1 3 0 28 | 1 3 3 2 1 4 10 3 0 1 1 3 %2 %2 0 0 2 1 1 0 1 3 2 2 29 | 4 5 3 4 3 5 3 3 1 2 2 3 0 0 0 0 0 0 0 0 0 0 0 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 ---+------------------------------------------------------------------------ 21 | 22 | 1 1 23 | 1 1 1 24 | 25 | 1 26 | 27 | 1 1 28 | 29 | 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: 50.027 MHz Transmitter Location: HAM beacon (JE7YNQ) (50 W CW, 50.027 MHz) Antenna : 2el. HB9CV Az:60deg. horizon. 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 2 1 1 0 2 0 3 1 0 1 0 IF IF IF IF %0 %0 0 1 0 0 0 02 | 1 1 2 2 0 1 1 3 0 0 0 2 1 0 1 0 1 2 0 1 1 2 1 1 03 | 1 1 3 1 3 1 1 2 4 1 4 1 4 2 5 1 0 0 0 1 2 1 1 0 04 | 0 1 4 2 2 0 0 1 3 1 0 2 2 2 3 2 1 0 0 0 0 1 0 2 05 | 1 1 1 4 6 10 5 1 3 0 1 %2 %3 1 5 0 0 0 1 0 0 1 3 3 06 | 0 2 1 0 0 0 5 9 1 6 IF 0 1 0 1 0 1 0 0 0 0 0 5 0 07 | 2 6 3 2 2 5 3 3 7 4 4 7 3 6 4 1 1 %0 IF IF 0 0 2 1 08 | 3 2 7 3 2 0 4 0 0 2 1 1 3 1 1 0 1 0 0 0 0 0 1 2 09 | 1 3 3 1 2 0 4 2 5 1 4 2 1 0 2 0 0 0 0 0 0 0 3 0 10 | 2 1 2 1 2 2 2 2 1 7 3 1 2 0 0 0 0 0 2 0 0 2 1 1 11 | 0 1 1 0 0 1 1 2 1 2 3 3 2 0 2 1 1 1 2 0 0 3 4 1 12 | 3 3 1 2 1 1 1 4 5 1 0 4 3 3 0 3 3 0 0 0 0 0 0 1 13 | 4 0 1 3 2 0 2 1 2 3 3 3 1 IF IF 1 0 1 0 0 0 0 0 0 14 | 0 0 0 0 0 0 0 3 0 0 2 2 3 1 2 0 0 0 0 0 1 1 1 1 15 | 0 2 2 1 1 1 1 1 4 %1 4 0 2 1 0 1 3 1 0 2 0 1 1 1 16 | 1 3 1 3 1 1 1 4 1 2 %0 1 2 0 0 2 2 0 1 2 0 0 1 2 17 | 0 2 0 3 2 0 3 3 3 1 3 0 0 0 2 0 0 2 0 0 0 0 1 1 18 | 2 2 0 1 1 0 0 1 1 5 1 0 2 2 1 0 1 0 0 0 0 0 0 0 19 | 0 1 1 0 0 2 0 4 2 0 3 4 2 2 0 0 0 0 0 0 0 0 1 1 20 | 2 1 1 0 0 0 1 1 1 1 1 0 1 0 1 1 1 0 0 %0 0 0 0 3 21 | 1 3 0 0 1 1 3 2 1 0 1 3 2 4 5 3 0 0 0 0 0 0 3 0 22 | 6 4 2 2 3 4 6 4 2 %3 IF IF IF IF IF IF IF %2 0 0 1 0 0 0 23 | 0 0 1 0 1 1 0 1 4 2 1 3 1 1 0 0 0 0 0 0 0 3 0 2 24 | 0 2 2 7 1 2 4 0 2 2 2 4 2 4 4 2 0 0 0 0 0 0 0 3 25 | 3 0 5 2 2 8 8 5 9 1 3 1 0 0 0 0 0 0 0 1 0 2 1 3 26 | 0 1 3 5 5 6 6 5 3 4 5 %0 5 2 0 2 0 0 1 0 0 1 2 3 27 | 0 2 3 3 2 1 4 7 4 3 4 %8 1 3 2 1 0 0 0 0 0 0 0 1 28 | 1 4 3 3 2 6 7 5 6 4 5 7 4 %5 7 0 0 1 0 0 0 0 2 1 29 | 1 3 3 1 2 3 9 3 4 8 6 4 2 2 3 0 0 0 0 0 0 0 1 0 30 | 5 1 2 2 1 1 2 7 8 4 7 1 4 4 0 3 1 0 0 1 2 1 1 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 | 1 05 | 06 | 07 | 08 | 1 09 | 10 | 11 | 12 | 1 13 | 14 | 15 | 16 | 17 | 18 | 1 19 | 1 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 1 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 Frequency: 112.0 MHz Transmitter Location: VOR-Komatsu, Japan 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 | 4 1 2 2 1 1 0 7 0 3 1 3 0 2 1 0 1 1 1 2 6 3 1 1 02 | 0 2 0 0 2 1 2 1 2 2 1 2 1 0 2 1 0 4 4 2 2 5 1 0 03 | 1 1 1 1 0 1 2 1 3 4 3 3 2 1 3 0 0 0 0 2 0 0 0 1 04 | 4 2 1 2 2 2 2 7 2 3 2 2 1 0 1 2 4 4 1 2 1 1 2 1 05 | 3 3 2 4 0 4 0 4 3 1 4 4 1 3 2 1 0 0 1 0 0 2 2 0 06 | 4 3 0 1 0 0 3 1 2 1 6 3 5 3 1 0 2 2 0 0 0 %1 %4 3 07 | 1 6 4 1 0 1 2 5 3 1 5 4 3 2 1 0 2 4 0 2 0 2 3 7 08 | 2 1 1 2 3 5 3 2 3 2 2 3 6 3 4 3 3 5 2 3 1 %0 1 2 09 | 2 3 4 4 5 3 1 2 2 3 5 4 3 3 0 7 %6 %1 4 0 2 2 1 2 10 | 6 4 1 4 0 4 4 1 3 4 5 3 0 1 0 4 0 1 2 1 1 1 1 3 11 | 3 3 4 2 %2 2 3 11 3 5 3 2 4 2 1 %3 1 0 2 0 1 0 3 0 12 | 1 %0 %1 0 1 1 2 3 2 0 0 1 0 %0 2 1 4 0 0 0 0 1 2 1 13 | 4 5 3 4 3 2 2 2 6 3 2 3 0 %0 IF IF IF IF IF IF IF 2 1 3 14 | 2 2 0 3 2 2 1 4 3 2 4 2 1 %0 IF %0 2 2 0 1 0 3 2 %1 15 | 1 4 0 0 3 0 2 4 4 6 6 -- %2 1 2 0 2 0 2 1 1 1 2 2 16 | 4 1 1 2 4 1 3 0 2 1 1 %5 0 IF 2 %2 %0 %0 %0 0 4 0 0 %0 17 | 0 %0 1 6 1 3 4 6 8 6 1 2 %1 2 0 2 %0 0 %1 1 2 %1 1 0 18 | %4 3 2 5 1 3 2 1 0 8 %1 2 3 0 %4 %5 %3 %0 %2 %0 1 0 2 2 19 | 1 0 1 3 2 %4 4 5 6 1 2 2 2 3 %0 4 %2 %0 0 %0 0 3 3 1 20 | 1 0 1 0 1 1 0 3 1 1 0 2 0 2 0 %1 0 0 0 %2 2 4 4 8 21 | 5 6 2 4 8 5 10 11 18 7 3 5 7 5 4 5 7 2 2 3 1 2 3 1 22 | 3 %4 4 3 5 %6 3 4 8 6 %4 %2 %0 %0 %2 %2 %0 %1 0 %0 %0 %0 %3 7 23 | 4 4 6 6 4 6 7 6 6 9 3 9 5 1 %0 4 3 10 4 %3 1 2 3 4 24 | 2 5 4 2 5 4 12 12 6 7 6 1 5 4 2 5 6 3 3 1 2 4 4 3 25 | 11 3 3 3 6 8 7 6 5 3 2 4 5 0 2 %4 IF IF %6 0 0 0 0 1 26 | 3 2 0 2 0 2 1 2 1 0 1 3 2 0 1 %5 3 1 %3 %2 1 1 1 0 27 | 7 1 2 2 2 0 1 0 4 3 3 2 %0 0 0 3 0 0 0 1 1 0 2 1 28 | 1 3 3 3 1 2 2 5 1 5 1 5 2 -- IF IF IF IF 1 %0 1 %2 IF %4 29 | 8 5 6 6 6 3 4 3 2 %0 2 0 2 1 1 2 1 1 2 1 0 0 3 2 30 | 2 1 1 1 1 0 2 2 2 4 0 3 3 1 2 1 1 0 1 0 0 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 | 1 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 1 18 | 19 | 20 | 21 | 1 22 | 1 1 23 | 1 2 24 | 25 | 26 | 27 | 1 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 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: 53.755 MHz Transmitter Location: Fukui Prefectural University at Eiheiji town (136.3 E, 36.1 N) HAM beacon (JH9YYA) for RMO (50 W CW, 53.755 MHz) No modulation except for identification Antenna : HB9CV 2el. zenith(el.S-N) Receiver: AITEC MRX-50 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 | 8 3 6 7 3 1 7 2 6 4 7 3 4 0 5 4 0 1 1 1 3 2 7 3 02 | 3 4 1 4 3 1 1 4 3 3 4 6 1 6 0 3 1 0 0 2 2 3 3 1 03 | 6 8 3 7 4 1 2 4 1 9 5 1 1 2 1 1 0 2 1 0 1 7 2 4 04 | 1 5 2 3 2 5 3 4 5 6 5 2 4 1 1 3 2 0 1 0 2 1 1 3 05 | 1 4 3 1 2 2 2 3 1 7 %4 3 1 1 2 5 1 0 2 0 1 1 2 %0 06 | 6 4 2 2 5 3 4 5 9 7 4 3 2 3 0 1 1 0 1 2 2 2 0 2 07 | 2 2 2 2 0 4 2 2 2 4 5 2 3 2 0 2 1 0 0 2 1 5 3 3 08 | 5 1 3 1 3 1 2 3 3 5 3 5 4 0 0 0 2 0 0 2 2 4 4 4 09 | 3 5 8 3 4 5 5 2 3 2 3 4 5 0 0 1 0 2 2 2 2 4 6 4 10 | 3 3 9 2 4 5 6 4 %6 8 3 5 3 1 0 3 2 0 1 1 1 8 1 2 11 | 4 5 2 5 1 8 4 3 7 7 2 3 7 1 0 0 2 0 0 2 0 2 3 5 12 | 5 7 2 4 4 2 6 2 1 4 4 3 2 1 2 0 1 0 1 0 3 4 3 7 13 | 5 3 3 4 3 5 5 2 9 4 8 4 2 2 1 1 1 1 0 1 0 2 2 4 14 | 6 4 2 1 3 0 6 9 9 3 8 4 3 1 1 1 2 1 3 1 0 3 1 2 15 | 7 4 4 5 2 5 7 4 5 9 0 3 2 1 1 0 0 0 0 1 2 5 1 2 16 | 8 3 2 2 3 1 3 6 5 3 3 3 1 1 2 1 4 1 2 1 1 3 3 4 17 | 1 6 4 5 3 6 4 6 7 5 5 0 1 1 1 2 1 0 1 0 2 3 3 6 18 | 5 6 3 2 4 3 5 4 6 6 6 4 2 2 1 1 1 3 2 1 2 2 1 6 19 | 3 7 5 5 3 7 4 5 6 4 8 2 2 2 3 3 0 1 1 0 2 3 8 5 20 | 3 6 3 5 4 3 4 5 1 6 3 0 1 3 2 3 0 0 3 0 5 1 4 6 21 | 5 3 4 4 7 4 1 9 4 2 3 3 4 0 2 2 2 0 1 0 0 1 8 3 22 | 5 6 6 5 10 1 4 8 10 7 6 1 1 3 1 2 0 1 1 1 1 3 3 4 23 | 8 5 8 4 3 7 2 8 13 5 10 0 0 2 1 2 0 0 1 1 1 1 0 0 24 | 2 2 7 2 4 4 7 1 7 3 6 2 4 3 0 0 3 2 2 0 4 1 3 3 25 | 7 2 4 5 6 6 4 4 7 6 5 6 4 1 3 3 1 2 1 0 3 6 2 6 26 | 4 3 4 6 2 4 4 8 6 4 5 2 4 1 1 1 1 1 0 1 1 3 7 4 27 | 7 3 5 4 2 5 4 3 5 3 2 2 2 2 3 3 0 0 2 1 1 4 4 2 28 | 3 10 4 1 4 3 4 3 6 4 3 3 0 1 1 3 2 0 1 3 1 2 2 1 29 | 1 5 7 2 4 5 3 7 4 3 6 4 3 0 1 2 1 0 1 1 0 2 %1 5 30 | 0 4 4 7 11 3 3 3 2 6 5 1 3 0 1 1 2 1 0 0 1 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 | 04 | 1 05 | 1 06 | 07 | 08 | 09 | 1 10 | 11 | 12 | 13 | 14 | 1 2 15 | 2 16 | 17 | 18 | 19 | 1 20 | 21 | 1 22 | 1 1 1 1 1 23 | 1 1 1 1 1 24 | 1 25 | 1 26 | 1 1 1 27 | 1 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 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 | 2 6 2 3 3 4 12 5 13 5 5 4 8 2 2 2 3 3 1 0 1 0 6 4 02 | 3 2 6 7 6 2 5 10 7 9 2 4 7 5 4 6 2 1 1 3 5 4 5 9 03 | 5 6 5 3 7 6 6 8 4 4 9 0 1 3 1 3 4 1 1 2 4 1 5 2 04 | 7 4 3 6 4 3 9 7 10 3 5 0 2 8 5 2 0 2 1 0 0 4 3 4 05 | 3 1 3 6 6 3 6 13 3 5 5 6 3 5 0 1 1 1 0 2 2 3 2 2 06 | 3 4 1 6 4 4 2 6 7 16 5 6 7 7 3 0 0 0 2 2 1 0 4 3 07 | 6 6 8 2 4 3 9 10 8 8 5 5 7 7 3 0 0 0 3 1 1 1 6 4 08 | 6 7 3 5 4 4 6 3 9 7 6 0 7 5 6 2 3 2 3 2 5 5 4 3 09 | 8 5%11 -- -- -- -- -- -- 13 2 5 8 9 5 2 1 2 3 1 1 4 3 8 10 | 3 7 10 5 2 8 2 12 8 9 9 6 4 1 3 0 1 1 2 3 0 3 4 2 11 | 10 8 5 8 5 6 5 11 4 4 7 5 2 2 7 2 3 2 4 4 0 3 3 7 12 | 2 2 4 3 3 8 3 7 7 4 13 3 1 4 3 2 2 2 1 0 4 0 6 5 13 | 6 3 9 1 2 3 6 6 7 5 3 5 3 6 7 2 3 4 1 1 2 3 2 4 14 | 5 0 4 9 6 7 11 8 13 7 6 7 4 %2 8 3 0 4 3 3 3 3 3 1 15 | 4 2 4 4 6 5 11 6 4 3 5 8 3 2 3 2 1 0 1 1 4 3 2 2 16 | 5 1 2 6 4 6 12 8 11 5 6 6 7 6 2 2 4 1 1 0 2 4 3 2 17 | 0 3 5 2 3 5 9 5 7 8 10 6 3 4 3 3 2 3 2 1 3 0 2 3 18 | 0 1 0 3 5 13 5 7 7 2 2 4 %1 4 7 2 2 1 2 3 1 3 5 8 19 | 3 6 5 4 7 7 6 7 4 6 6 4 6 5 1 2 1 3 2 0 0 0 4 0 20 | 3 5 7 3 5 4 6 9 9 4 11 4 1 6 1 4 1 2 2 2 2 2 1 3 21 | 6 2 4 5 2 4 15 8 5 3 2 6 2 8 6 2 4 6 1 1 4 1 5 6 22 | 5 11 3 4 13 17 21 13 9 6 5 1 1 7 3 0 2 1 1 6 3 8 6 6 23 | 5 9 2 11 13 11 14 7 15 4 1 8 5 9 9 5 2 1 1 4 1 2 5 9 24 | 5 3 6 6 9 8 6 9 10 10 7 6 3 11 3 3 3 3 2 2 3 2 3 5 25 | 7 4 4 2 3 10 9 8 10 0 5 2 8 5 2 5 1 2 4 3 3 4 3 3 26 | 7 8 1 1 6 3 10 13 13 1 0 5 6 2 2 4 3 1 2 2 0 4 9 2 27 | 2 4 6 1 1 2 3 11 9 5 3 13 8 4 1 3 1 1 3 3 1 1 0 10 28 | 8 3 2 6 2 %6 7 16 %6 3 5 2 6 6 2 2 5 1 1 4 4 3 7 4 29 | 5 3 2 4 6 9 5 16 11 6 2 4 4 7 7 2 3 2 0 1 0 0 4 2 30 | 6 4 2 2 4 4 11 12 6 10 4 2 2 2 4 0 5 3 0 2 0 1 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 | 1 02 | 1 03 | 1 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 1 1 13 | 14 | 1 2 15 | 16 | 17 | 2 18 | 1 19 | 1 20 | 21 | 22 | 1 23 | 1 1 1 1 1 24 | 25 | 26 | 1 27 | 28 | 1 1 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: Hironbu Shida Location: Akita, Akita, Japan (140.1 E, 39.4 N) Frequency: 53.755 MHz Transmitter Location:@ Fukui Prefectural University at Eiheiji town (136.3 E, 36.1 N) HAM beacon (JH9YYA) for RMO (50 W CW, 53.755 MHz) No modulation except for identification Antenna : HB062FDX Receiver : AITEC MRX-50 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 | 0 | 0 | 0 | 1 |Mar 01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 02 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 05 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 06 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 7 | 07 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 2 | 0 | 0 | 1 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 09 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 3 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | 9 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 3 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 1 | 1 | 3 | 1 | 0 | 9 | 6 | 2 | 14 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 15 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 2 | 1 | 8 | 2 | 16 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 2 | 3 | 17 | 3 | 0 | 1 | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 0 | 0 | 18 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 3 | 1 | 2 | 1 | 0 | 1 | 0 | 3 | 4 | 2 | 19 | 4 | 1 | 0 | 0 | 1 | 0 | 4 | 0 | 0 | 2 | 1 | 0 | 1 | 1 | 2 | 0 | 1 | 5 | 0 | 3 | 2 | 1 | 0 | 3 | 20 | 5 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 4 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 3 | 3 | 0 | 0 | 2 | 0 | 2 | 7 | 5 | 3 | 22 | 3 | 1 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 3 | 2 | 0 | 3 | 1 | 2 | 6 | 0 | 2 | 3 | 2 | 4 | 23 | 2 | 4 | 0 | 0 | 1 | 2 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 2 | 2 | 1 | 2 | 5 | 1 | 3 | 8 | 1 | 4 | 24 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 3 | 1 | 0 | 0 | 1 | 1 | 0 | 4 | 0 | 3 | 5 | 25 | 2 | 0 | 0 | 0 | 1 | 2 | 2 | 0 | 0 | 1 | 2 | 1 | 0 | 1 | 2 | 1 | 1 | 4 | 2 | 1 | 2 | 0 | 4 | 0 | 26 | 2 | 0 | 0 | 0 | 0 | 2 | 4 | 3 | 4 | 0 | 0 | 0 | 2 | 0 | 3 | 1 | 0 | 1 | 0 | 1 | 8 | 2 | 0 | 4 | 27 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 3 | 3 | 2 | 1 | 2 | 3 | 28 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 3 | 3 | 1 | 2 | 12 | 4 | 3 | 5 | 1 | 29 | 3 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 2 | 0 | 1 | 1 | 4 | 3 | 1 | 1 | 2 | 30 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 4 | 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 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 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 | 1 | 0 | 1 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 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 | 2 | 1 | 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 | 2 | 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 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 20 | 1 | 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 | 2 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 23 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 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 | 1 | 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 | 2 | 0 | 0 | 1 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 1 | 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 | 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 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 : Hirotaka Otsuka Location : Hirakata, Osaka, Japan (135.7 E, 34.9 N) Frequency: 53.755 MHz Antenna : 2el-HB9CV, 4mH (90-270 Azimuth(East-West), 90elevation) Transmitter Location: Fukui Prefectural University at Eiheiji town (136.3 E, 36.1 N) HAM beacon (JH9YYA) for RMO (50 W CW, 53.755 MHz) No modulation except for identification 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 | 1 | 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 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 05 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 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 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 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 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 18 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 23 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 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 | 1 | 0 | 27 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 1 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 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 | 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 | 1 | 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 | 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 | 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 JST =UT + 9 h ----------------------------------------------------------------------------- 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 No modulation except for identification 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 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 9 | 2 | 4 | 6 | 2 | 4 | 3 | 4 | 2 |Mar 01 | 0 | 0 | 2 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 1 | 5 | 7 | 6 | 13 | 3 | 1 | 1 | 02 | 2 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 5 | 4 | 8 | 4 | 5 | 7 | 1 | 4 | 4 | 03 | 0 | 1 | 2 | 3 | 2 | 3 | 0 | 2 | 1 | 0 | 0 | 0 | 1 | 1 | 2 | 4 | 3 | 9 | 8 | 4 | 3 | 4 | 3 | 3 | 04 | 4 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 3 | 4 | 3 | 4 | 3 | 5 | 4 | 2 | 1 | 4 | 05 | 2 | 0 | 2 | 3 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 3 | 2 | 1 | 0 | 1 | 6 | 4 | 6 | 4 | 6 | 3 | 5 | 4 | 06 | 1 | 1 | 2 | 0 | 4 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 6 | 1 | 5 | 1 | 3 | 7 | 5 | 5 | 1 | 07 | 2 | 0 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 6 | 2 | 1 | 0 | 1 | 2 | 8 | 0 | 0 | 08 | 5 | 4 | 0 | 2 | 2 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 5 | 5 | 8 | 2 | 4 | 7 | 3 | 2 | 3 | 09 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 10 | 6 | 3 | 12 | 2 | 7 | 4 | 0 | 4 | 10 | 0 | 3 | 0 | 0 | 1 | 1 | 3 | 1 | 1 | 2 | 0 | 0 | 0 | 1 | 1 | 6 | 4 | 6 | 6 | 7 | 11 | 5 | 2 | 1 | 11 | 0 | 1 | 0 | 3 | 1 | 0 | 2 | 0 | 0 | 0 | 2 | 1 | 3 | 2 | 3 | 3 | 2 | 9 | 6 | 3 | 6 | 5 | 2 | 1 | 12 | 3 | 0 | 1 | 1 | 3 | 1 | 0 | 0 | 0 | 1 | 0 | 4 | 0 | 1 | 1 | 2 | 3 | 3 | 1 | 8 | 6 | 5 | 0 | 1 | 13 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 4 | 4 | 4 | 3 | 7 | 4 | 1 | 3 | 2 | 0 | 14 | 1 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 3 | 2 | 3 | 4 | 4 | 2 | 1 | 0 | 15 | 2 | 1 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 4 | 0 | 4 |??? |??? |??? |??? |??? |??? |??? |??? | 16 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 3 | 2 | 1 | 3 | 6 | 2 | 3 | 7 | 1 | 2 | 17 | 0 | 1 | 0 | 2 | 1 | 2 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 1 | 0 | 5 | 4 | 2 | 2 | 4 | 2 | 4 | 1 | 2 | 18 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 4 | 0 |??? | 0 | 7 | 6 | 11 | 7 | 7 | 4 | 3 | 3 | 19 | 2 | 1 | 1 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 5 | 4 | 9 | 8 | 6 | 8 | 0 | 1 | 20 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 4 | 10 | 7 | 7 | 3 | 5 | 5 | 4 | 2 | 3 | 21 | 0 | 1 | 4 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 2 | 2 | 0 | 1 | 8 | 5 | 3 | 6 | 5 | 8 | 5 | 8 | 9 | 5 | 22 | 1 | 0 | 1 | 2 | 4 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 3 | 4 | 5 | 8 | 11 | 7 | 7 | 9 | 5 | 7 | 3 | 2 | 23 | 2 | 0 | 1 | 1 | 0 | 3 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 2 | 2 | 2 | 2 | 4 | 6 | 0 | 3 | 3 | 1 | 1 | 24 | 0 | 3 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 4 | 2 | 8 | 5 | 10 | 6 | 6 | 4 | 3 | 4 | 25 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 2 | 0 | 2 | 3 | 2 | 4 | 6 | 2 | 5 | 26 | 0 | 0 | 4 | 1 | 0 | 1 | 2 | 0 | 0 | 1 | 0 | 0 | 1 | 2 | 4 | 4 | 3 | 1 | 2 | 5 | 4 | 4 | 4 | 4 | 27 | 1 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 5 | 2 | 5 | 3 | 2 | 1 | 1 | 1 | 28 | 1 | 0 | 3 | 2 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 5 | 1 | 3 | 3 | 1 | 2 | 4 | 9 | 1 | 2 | 29 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 1 | 2 | 3 | 2 | 1 | 1 | 8 | 5 | 2 | 0 | 30 | 0 | 0 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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 | 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 | 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 | 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 | 1 | 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 |??? |??? |??? |??? |??? |??? |??? |??? | 16 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 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 | 1 | 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 | 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 JST =UT + 9 h ----------------------------------------------------------------------------- About the RMOJ... RMOJ reports the results of radio meteor observation in Japan, sent to myself. Every month, this bulletin is sent to Mr.Christian Steyaert, who publishes RMOB, which is a world-wide bulletin. I hope RMOJ will be helpful to radio observers, as well as all meteor observers. Hiroshi Ogawa 2024.05.06