Radio Meteor Observation in Japan No.222 April 2020 ( http://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 | 10 12 13 13 15 14 8 15 13 6 8 10 10 8 2 6 5 1 4 4 1 3 6 12 02 | 16 16 13 21 11 14 12 15 14 9 13 17 14 8 4 5 5 1 9 4 9 10 6 14 03 | 19 15 10 18 11 16 18 14 18 19 16 13 9 12 4 0 2 3 1 3 3 4 8 3 04 | 13 21 18 8 15 15 6 1 5 8 9 14 7 8 4 1 2 2 1 2 5 3 7 8 05 | 15 22 19 14 14 20 14 16 12 16 9 13 7 1 6 5 4 4 2 2 7 7 8 13 06 | 25 16 13 10 7 19 16 10 11 10 8 8 8 6 5 1 1 10 3 4 4 8 7 8 07 | 14 8 18 20 10 10 10 7 1 1 7 4 7 3 4 3 2 0 2 1 1 3 4 5 08 | 11 11 13 15 20 11 19 15 11 11 9 16 11 4 5 4 2 1 4 1 3 9 6 9 09 | 11 7 8 15 10 17 12 12 16 15 10 6 10 7 1 5 1 2 1 2 9 9 2 9 10 | 12 17 10 11 14 10 17 12 7 7 10 4 4 1 3 1 1 2 0 0 2 3 10 8 11 | 11 10 14 12 13 9 22 13 5 7 11 9 6 11 9 3 4 3 3 2 8 4 9 10 12 | 11 19 15 13 13 15 15 16 8 16 16 12 11 10 8 5 2 4 1 7 1 4 7 8 13 | 27 23 18 14 17 14 12 17 12 15 14 22 14 10 6 2 9 1 2 0 2 8 9 8 14 | 18 16 15 8 9 18 17 10 13 11 9 17 14 11 5 1 1 3 1 4 7 8 10 11 15 | 20 12 10 12 10 9 17 13 16 18 20 18 14 6 2 3 3 5 2 1 4 3 8 5 16 | 11 9 15 13 10 9 11 16 14 24 16 13 15 4 3 2 0 2 0 1 4 8 8 6 17 | 15 12 10 12 12 20 16 17 14 12 14 19 14 11 15 5 1 2 0 1 2 3 8 9 18 | 8 11 21 14 7 14 15 8 6 7 10 10 10 7 7 4 2 1 1 1 4 2 6 9 19 | 6 13 5 14 12 9 12 8 14 7 11 8 4 6 4 6 4 0 0 5 2 7 5 8 20 | 4 15 14 10 7 10 13 14 15 20 15 16 11 11 11 7 1 4 2 2 1 5 9 14 21 | 11 18 15 12 14 13 15 22 19 15 20 16 18 12 7 7 3 1 1 1 2 6 3 7 22 | 12 13 15 7 7 16 18 14 13 11 7 6 10 9 3 3 3 2 3 4 3 5 11 14 23 | 8 15 18 8 16 21 17 17 7 15 21 17 20 12 6 7 7 4 3 2 7 5 11 13 24 | 15 10 12 17 19 16 17 13 10 8 6 10 11 9 3 6 5 4 1 8 10 5 12 11 25 | 18 20 14 16 14 25 15 20 19 13 13 7 7 3 5 5 0 2 3 3 2 4 7 11 26 | 7 16 13 16 17 14 15 20 17 9 15 14 21 14 8 1 4 1 1 1 0 6 10 7 27 | 9 18 16 10 16 11 22 10 14 20 8 10 9 4 4 1 0 2 0 2 3 5 3 10 28 | 10 12 16 18 18 14 13 20 17 14 19 13 12 10 6 1 1 2 1 0 4 9 3 7 29 | 23 13 16 13 17 15 15 14 11 5 7 15 3 5 3 3 1 2 1 2 0 4 5 5 30 | 10 12 10 13 19 20 18 15 18 9 16 11 3 7 2 2 2 2 2 4 5 3 5 6 ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST Echoes longer than 20 seconds Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 02 | 03 | 1 04 | 1 05 | 1 06 | 1 07 | 08 | 1 09 | 1 10 | 1 11 | 12 | 13 | 1 1 14 | 1 1 1 15 | 16 | 1 1 17 | 1 1 18 | 19 | 1 1 20 | 21 | 1 1 22 | 1 1 1 1 1 23 | 1 1 1 24 | 1 1 25 | 1 1 26 | 1 27 | 1 28 | 29 | 30 | ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST note: --: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- Observer : Tuboi Observatory[TSUBOI MASAKI] Location : Asakitaku,Hiroshimashi,JAPAN (34.45 N, 132.50 E) Frequency: 53.755 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 : 5.6m loop antenna (original) dir: zenith Receiver: AITEC MRX-50(53.75MHz) 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 | 14 13 13 10 17 8 18 22 6 18 15 10 15 10 9 8 6 5 3 7 3 6 11 8 02 | 6 10 7 7 9 17 23 8 14 13 5 IF IF IF IF IF IF IF %4 2 3 1 4 5 03 | 0 0 0 2 0 4 7 17 15 15 12 16 20 12 8 6 2 3 2 7 9 6 7 8 04 | IF 3 1 0 1 6 5 2 8 3 7 1 10 5 9 7 3 2 2 %3 1 2 3 2 05 | 3 2 1 2 3 8 10 10 9 4 6 4 4 6 4 0 1 0 4 %2 1 1 5 4 06 | 8 10 3 7 5 5 19 19 22 14 11 18 10 5 5 4 6 7 %1 %0 1 4 0 2 07 | 3 3 4 3 4 2 9 16 11 14 9 7 10 5 3 4 2 3 3 3 0 4 1 4 08 | 2 2 5 4 0 12 8 22 16 16 22 19 12 9 %5 IF IF IF IF IF 2 3 1 6 09 | 4 3 10 5 7 5 12 24 7 11 10 12 5 10 9 2 3 3 3 IF 0 0 0 2 10 | 0 3 4 13 12 15 27 26 16 13 17 13 7 4 %2 IF 3 1 0 %2 4 4 4 4 11 | 8 4 6 11 3 4 13 12 12 9 14 8 4 2 2 2 0 3 3 1 3 6 7 11 12 | 14 11 9 8 5 13 16 17 11 7 10 5 8 8 8 16 10 3 2 2 6 3 5 11 13 | 14 4 4 6 3 11 10 11 10 12 11 15 9 9 6 3 2 1 3 3 7 9 10 5 14 | 11 5 7 10 3 6 14 12 15 20 12 7 10 2 3 2 0 2 5 %0 2 4 2 1 15 | 0 0 3 4 6 6 17 23 9 9 10 10 6 6 4 8 4 4 1 5 8 8 %0 4 16 | 5 2 2 2 2 4 6 13 12 11 24 5 13%20 %8 6 2 3 %2 3 2 0 0 2 17 | 3 2 4 2 2 5 9 13 13 16 17 11 4 7 4 2 1 6 3 0 8 2 7 7 18 | 10 8 13 17 13 17 13 12 13 6 4 12 8 7 6 7 6 0 0 4 3 7 6 5 19 | 6 8 13 7 6 12 14 18 10 18 16 4 10 8 12 6 4 2 1 1 1 3 6 10 20 | 8 8 8 15 5 5 4 7 9 14 15 9 7 12 11 6 4 0 %1 IF 3 1 2 3 21 | 3 9 15 10 19 11 16 17 8 17 12 12 9 3 6 2 2 1 3 1 1 2 1 4 22 | 4 7 11 5 7 6 9 7 9 10 6 3 6 8 6 9 4 5 2 1 1 2 5 12 23 | 8 10 5 7 11 19 16 14 8 19 17 9 19 11 7 7 5 3 %3 3 5 6 4 2 24 | 7 2 0 8 5 6 12 22 18 16 7 8 8 %6 IF IF IF IF 5 IF IF 2 1 4 25 | 3 7 4 6 7 14 12 8 11 11 12 9 IF IF IF IF IF 5 2 1 0 2 1 5 26 | 5 5 1 7 3 5 5 6 2 5 2 4 4 3 3 6 2 3 2 0 0 2 5 2 27 | 3 1 2 2 2 4 4 5 1 16 14 14 10 5 7 3 2 7 %3 2 2 3 3 4 28 | 3 2 3 6 3 15 26 11 19 14 16 12 7 6 10 4 4 %3 %6 3 2 7 2 3 29 | 3 5 4 5 8 15 21 14 13 16 18 12 3 12 3 10 2 4 6 2 3 4 6 0 30 | 2 3 5 2 4 20 19 31 24 12 14 15 13 4 9 4 3 4 5 1 3 3 6 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 1 02 | 03 | 04 | 1 05 | 1 06 | 07 | 1 08 | 1 1 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 1 1 17 | 1 18 | 19 | 1 20 | 1 1 21 | 1 22 | 1 23 | 1 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: 115.8MHz, 116.600 MHz Transmitter Location: VOR Beacon for Air-flight (115.800 MHz) VOR Beacon for Air-flight (116.600 MHz) Antenna : 5el-Yagi Az90deg Receiver: R820T2-SDR+TCXO Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 3 6 9 4 4 4 6 4 5 6 5 9 10 4 0 4 3 1 3 1 2 1 1 2 02 | 2 8 2 2 3 10 2 1 3 1 7 11 6 4 5 3 1 1 0 2 0 2 2 4 03 | 5 2 4 1 4 2 6 8 5 3 6 5 7 0 4 5 4 2 1 3 0 5 4 5 04 | 5 4 2 1 1 1 1 1 5 7 4 6 9 3 6 5 2 2 1 0 1 4 4 8 05 | 5 6 4 6 1 3 2 4 6 7 1 4 0 2 3 4 1 0 3 1 2 2 3 2 06 | 3 1 3 3 4 6 2 4 6 5 5 2 4 7 5 1 4 0 4 3 3 1 1 2 07 | 1 5 6 3 3 7 5 8 3 4 5 5 3 5 8 5 4 2 2 %0 1 4 3 1 08 | 3 5 0 3 0 2 7 5 6 10 3 5 4 4 %5 IF IF IF IF IF 2 3 4 2 09 | 4 1 2 1 4 6 6 4 4 7 4 4 6 4 2 2 3 2 1 4 0 4 3 1 10 | 6 3 3 4 5 8 10 5 12 5 5 6 %6 IF IF IF IF 1 0 1 1 1 4 2 11 | 3 4 0 2 1 3 6 5 5 5 4 1 6 6 1 2 3 0 2 3 2 5 7 6 12 | 6 7 5 5 6 8 6 5 1 9 7 6 5 6 6 2 4 3 4 3 5 2 3 2 13 | 7 1 4 5 6 8 3 4 3 9 13 8 7 4 1 %2 %4 %2 1 3 1 1 4 2 14 | 5 6 0 4 5 8 6 6 5 6 0 2 3 0 4 2 1 1 1 IF 0 1 1 0 15 | 6 5 3 5 2 4 3 2 5 3 5 3 4 3 1 1 5 2 2 0 1 5 2 1 16 | 7 7 2 2 4 4 3 4 6 8 3 4 5 1 1 3 IF %1 3 1 1 1 1 1 17 | 6 4 6 2 5 2 5 6 7 6 6 5 10 3 5 3 6 1 0 2 6 4 2 4 18 | 2 4 5 4 8 5 4 5 5 4 6 4 9 6 1 1 3 3 1 3 3 3 5 6 19 | 5 5 5 6 6 5 6 3 4 7 3 3 5 3 2 4 3 0 2 1 0 0 4 5 20 | 3 6 6 5 2 4 6 8 4 1 3 4 3 3 7 5 0 1 5 1 0 2 0 2 21 | 4 7 5 8 6 8 4 8 6 3 3 6 2 0 2 IF IF 0 2 2 1 1 4 4 22 | 8 3 6 3 5 2 5 6 6 6 3 3 5 6 3 2 1 0 3 4 4 3 3 3 23 | 4 9 4 2 1 8 7 5 3 5 11 5 5 4 2 0 1 3 1 3 0 1 0 1 24 | 2 3 6 8 3 4 4 7 8 8 8 4 1 3 2 2 2 2 1 0 4 0 2 4 25 | 3 1 4 1 5 4 3 4 4 8 9 4 2 2 2 1 0 0 1 0 0 2 7 5 26 | 1 2 1 4 0 1 4 6 4 3 3 3 7 5 4 3 5 2 2 7 1 2 5 5 27 | 4 3 2 3 2 0 6 4 4 4 %5 4 1 1 5 2 3 6 0 2 4 0 2 2 28 | 3 3 0 5 2 2 9 6 3 4 6 5 3 4 5 3 0 0 2 2 0 1 5 5 29 | 5 1 0 3 3 7 6 5 11 5 7 8 8 7 3 0 0 2 5 2 1 1 2 7 30 | 3 8 0 3 2 3 10 4 7 9 12 13 12 5 3 1 1 2 2 4 3 4 3 4 ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST Echoes longer than 20 seconds Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 1 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 1 28 | 29 | 30 | ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST note: --: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- Observer :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 | 6 6 12 7 13 11 5 11 7 8 7 9 10 13 8 2 3 2 3 1 1 5 5 9 02 | 11 5 7 6 12 4 10 11 5 10 12 10 11 12 6 3 2 0 3 3 10 7 8 10 03 | 7 12 7 9 11 9 9 15 19 9 12 12 10 7 5 4 2 5 2 3 3 9 9 8 04 | 14 16 13 6 4 12 8 8 10 10 10 15 2 8 4 3 0 1 2 3 8 2 6 5 05 | 12 8 9 8 6 9 8 13 11 14 9 9 6 6 6 0 1 0 2 2 3 4 7 11 06 | 15 12 6 10 8 13 7 9 12 13 8 10 6 10 7 4 1 1 3 4 2 4 5 6 07 | 10 17 8 10 16 3 9 6 6 10 11 13 9 4 7 1 1 3 2 2 2 7 5 7 08 | 8 10 8 9 8 7 5 6 14 10 8 10 6 7 4 3 2 1 2 2 3 6 9 10 09 | 13 14 6 4 11 7 7 16 13 12 12 6 11 9 -- -- 2 1 0 3 5 4 6 11 10 | 15 8 14 6 7 16 8 10 11 12 11 6 8 9 8 6 4 1 3 4 7 3 3 10 11 | 8 13 10 8 5 9 5 6 14 12 13 5 6 3 4 2 2 3 1 2 7 8 6 6 12 | 6 7 8 4 10 6 3 13 11 13 15 10 11 7 2 3 3 3 1 1 3 4 3 11 13 | 11 9 6 13 13 9 4 17 16 11 16 8 14 6 5 4 6 4 1 4 2 4 9 12 14 | 16 9 8 12 10 12 9 16 17 11 11 11 10 4 4 3 5 2 2 3 3 8 12 10 15 | 17 10 12 14 12 6 6 14 16 18 11 11 7 3 8 6 2 2 4 6 4 2 8 12 16 | 2 10 11 7 13 12 8 11 23 13 17 18 6 9 10 6 4 1 2 0 5 9 9 7 17 | 12 12 11 11 7 13 8 6 9 13 9 16 %7 3 7 5 -- %5 3 4 2 7 10 9 18 | 10 9 6 7 7 13 6 11 15 7 6 8 8 6 6 6 7 1 4 1 0 4 2 6 19 | 11 5 10 11 15 14 15 16 18 20%13 %6 6 4 4 8 1 2 3 %6 3 4 3 8 20 | 8 14 16 8 8 10 11 14 4 11 14 9 8 4 3 6 4 2 3 2 0 5 5 10 21 | 1 8 8 9 15 9 10 7 16 13 13 9 8 5 %9 %6 6 3 %2 %5 3 6 9 15 22 | 9 6 7 7 17 6 16 16 18 23%20%17 3 10 7 %8 4 7 3 3 1 10 10 16 23 | 9 17 25 6 7 16 10 10 20 15 10%13 %8 7 10 %6 3 1 2 3 3 2 7 9 24 | 12 12 14 16 3 8 10 18 21 12 13 8 %5 6 6 3 3 1 %4 1 5 3 6 11 25 | 6 10 10 12 8 10 9 12 18 14%19 11 6 7 3 4 5 1 %2 %2 3 2 9 9 26 | 6 10 9 17 11 9 4 12 9 12 10 11 8 6 6 2 3 1 2 2 8 %6 %5 7 27 | 11 13 6 11 6 11 10 8 6 20%18%11 9 %5 7 1 5 2 2 2 5 5 8 9 28 | 11 13 9 8 14 11 7 17 12 17 15%13 8 7 5 3 1 %2 5 2 3 2 5 8 29 | 9 6 8 12 14 15 16 14 15 20 19%16 9 10 1 4 1 1 2 2 5 %6 7 13 30 | 11 9 12 8 12 6 13 17 13 11 %7 8 8 8 6 3 0 1 3 2 6 13 10 7 ---+------------------------------------------------------------------------ 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 1 05 | 1 06 | 1 1 07 | 08 | 09 | 1 1 10 | 1 11 | 12 | 1 13 | 1 1 14 | 2 15 | 16 | 1 17 | 1 1 1 18 | 19 | 1 1 2 20 | 1 1 21 | 1 22 | 1 1 1 23 | 1 1 1 1 24 | 1 1 25 | 26 | 1 27 | 1 28 | 1 29 | 1 30 | ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST Frequency: 114.100 ,116.600 MHz Transmitter Location: No1 Aomori-VOR at Aomori city (140.7 E, 40.7 N) Beacon for Air-flight (30Hz AM, 114.100 MHz) No2 Miyako-VOR at Iwaizumi Town (142.0 E, 39.9 N) Beacon for Air-flight (30Hz AM, 116.600 MHz) Antenna : 4el-Yagi Horizon(el. E-W) Receiver: RTL-SDR(R820T) 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 7 2 2 8 6 9 7 10 10 4 4 3 5 4 2 1 1 4 3 4 12 4 5 02 | 5 4 6 7 5 2 4 3 7 8 10 6 1 4 2 6 1 1 1 2 3 7 6 8 03 | 5 4 6 3 6 2 8 9 9 8 6 4 2 6 9 1 1 4 1 1 5 9 4 5 04 | 8 8 3 4 6 3 9 2 12 7 6 3 2 3 2 1 2 0 3 5 3 2 7 10 05 | 5 5 9 3 6 3 6 5 5 5 3 1 4 5 6 1 3 0 3 1 7 5 5 5 06 | 5 3 8 6 5 5 11 14 12 7 4 3 0 2 3 1 0 2 5 3 2 0 3 8 07 | 4 3 1 4 5 6 17 17 11 9 6 7 4 3 2 2 2 0 3 8 2 7 11 9 08 | 5 7 8 6 5 4 8 10 11 6 6 3 7 0 1 2 1 0 0 3 6 4 4 4 09 | 3 3 3 4 7 5 11 5 9 2 2 2 2 8 3 3 1 0 2 4 4 5 1 8 10 | 9 9 4 6 6 7 5 8 12 11 2 2 3 4 3 3 2 2 2 3 3 5 8 8 11 | 8 3 0 2 3 13 13 14 10 3 6 4 4 0 0 3 1 3 1 1 6 8 12 14 12 | 8 6 8 13 8 8 13 12 13 15 8 6 7 4 8 4 6 %4 4 -- 7 10 11%12 13 | 7 11 10 8 9 9 16 18%17 --%12 5 %2 4 5 5 %5 -- -- %5 6 4 8 7 14 | 10 5 4 9 2 8 12 11 9 11 %5 7 5 4 2 1 2 2 1 4 2 7 7 4 15 | 4 7 8 10 3 4 10 11 11 9 3 2 5 3 2 2 5 2 4 3 1 4 5 8 16 | 9 3 3 5 3 9 7 11 8 6 6 4 4 2 3 5 0 5 2 3 3 3 10 6 17 | 6 4 6 5 6 12 8 7 13 7 6 2 2 1 6 4 0 1 3 1 2 4 5 2 18 | 5 4 3 7 6 8 8 10 9 13 5 1 2 4 3 5 2 5 6 2 3 5 9 4 19 | 8 0 2 4 7 5 8 8 7 3 5 5 4 4 5 2 2 3 5 1 6 11 5 5 20 | 4 8 4 4 4 7 8 11 9 7 2 5 7 7 1 3 0 2 2 3 5 5 11 9 21 | 6 4 5 2 7 5 10 9 14 12 6 7 4 1 4 2 4 3 4 4 3 5 2 9 22 | 9 6 12 6 10 9 11 9 11 7 7 0 2 2 3 4 2 3 4 7 2 6 8 11 23 | 10 12 11 6 4 10 13 4 14 7 7 9 2 6 5 5 1 1 0 4 1 8 17 9 24 | 3 6 9 7 11 3 14 7 11 9 4 6 5 3 5 3 1 2 2 7 7 2 4 18 25 | 6 10 7 10 10 2 7 12 16 13 1 7 2 6 0 1 2 5 1 1 7 5 7 5 26 | 6 5 13 4 4 12 13 8 10 8 8 1 3 9 3 0 0 3 3 3 2 3 6 3 27 | 5 8 1 4 7 5 13 9 10 5 6 2 5 5 7 3 1 3 3 4 8 2 6 9 28 | 6 6 9 5 10 13 8 9 9 4 6 1 8 4 1 2 3 0 4 7 6 3 7 5 29 | 6 5 3 6 6 10 13 14 12 8 4 4 6 3 %5 3 3 1 0 6 4 5 7 6 30 | 4 6 3 9 11 10 8 13 8 6 4 4 8 5 9 2 3 3 2 3 1 7 5 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 | 05 | 1 06 | 1 07 | 1 08 | 1 1 09 | 10 | 1 11 | 1 12 | 1 1 1 13 | 14 | 15 | 1 1 16 | 17 | 18 | 19 | 1 20 | 21 | 1 22 | 1 23 | 1 1 24 | 1 25 | 1 26 | 27 | 1 28 | 29 | 1 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: 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 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 1 | 0 | 2 | 0 | 0 | 1 | 1 | 8 | 3 |Mar 01 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 9 | 0 | 0 | 7 | 02 | 1 | 1 | 0 | 5 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 1 | 0 | 1 | 03 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 04 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 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 | 2 | 0 | 0 | 06 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 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 | 0 | 0 | 0 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 1 | 3 | 0 | 2 | 1 | 0 | 09 | 0 | 8 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 3 | 2 | 0 | 10 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 11 | 0 | 0 | 0 | 0 | 4 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 3 | 4 | 2 | 0 | 2 | 12 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 2 | 2 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 13 | 6 | 2 | 2 | 1 | 2 | 2 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 4 | 2 | 0 | 4 | 14 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 3 | 2 | 2 | 2 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 15 | 3 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 5 | 1 | 1 | 0 | 1 | 2 | 1 | 3 | 2 | 16 | 1 | 0 | 1 | 2 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 2 | 4 | 0 | 2 | 0 | 3 | 1 | 0 | 0 | 1 | 1 | 17 | 1 | 8 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 3 | 2 | 3 | 3 | 3 | 2 | 10 | 4 | 5 | 6 | 5 | 18 | 3 | 2 | 3 | 1 | 0 | 0 | 1 | 1 | 2 | 0 | 2 | 3 | 1 | 0 | 2 | 3 | 3 | 7 | 3 | 1 | 4 | 10 | 2 | 12 | 19 | 5 | 3 | 0 | 3 | 1 | 3 | 2 | 1 | 0 | 1 | 2 | 0 | 1 | 1 | 0 | 2 | 6 | 6 | 4 | 3 | 8 | 1 | 1 | 0 | 20 | 2 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 2 | 5 | 3 | 3 | 0 | 2 | 12 | 9 | 4 | 7 | 21 | 9 | 4 | 2 | 3 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 2 | 1 | 5 | 1 | 0 | 2 | 1 | 0 | 2 | 1 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 3 | 0 | 4 | 0 | 0 | 2 | 0 | 0 | 0 | 5 | 6 | 3 | 23 | 7 | 2 | 1 | 0 | 0 | 1 | 2 | 4 | 0 | 1 | 0 | 0 | 1 | 2 | 2 | 0 | 3 | 0 | 2 | 1 | 3 | 5 | 2 | 3 | 24 | 1 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 1 | 2 | 1 | 0 | 1 | 0 | 1 | 3 | 3 | 2 | 3 | 0 | 3 | 1 | 25 | 2 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 3 | 4 | 2 | 2 | 2 | 0 | 6 | 5 | 6 | 3 | 3 | 26 | 5 | 4 | 4 | 2 | 1 | 2 | 3 | 0 | 0 | 0 | 0 | 5 | 3 | 0 | 4 | 3 | 1 | 2 | 1 | 1 | 0 | 2 | 1 | 7 | 27 | 2 | 1 | 2 | 0 | 2 | 0 | 0 | 0 | 2 | 2 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 4 | 0 | 1 | 2 | 28 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 2 | 1 | 0 | 2 | 1 | 1 | 5 | 2 | 1 | 4 | 6 | 6 | 3 | 2 | 29 | 2 | 0 | 0 | 1 | 2 | 1 | 2 | 2 | 0 | 0 | 1 | 1 | 2 | 2 | 3 | 2 | 2 | 3 | 2 | 3 | 6 | 2 | 2 | 4 | 30 | 7 | 2 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 5 | 1 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT Echoes longer than 20 seconds Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |Mar 01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 02 | 0 | 1 | 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 | 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 | 1 | 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 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 1 | 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 | 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 | 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 : 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 | 3 | 2 | 0 | 0 | 2 | 2 | 0 |Mar 01 | 4 | 0 | 2 | 0 | 2 | 0 | 1 | 0 | 0 | 1 | 0 | 2 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 2 | 02 | 1 | 2 | 2 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 2 | 0 | 2 | 0 | 0 | 4 | 03 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 0 | 1 | 04 | 1 | 0 | 2 | 1 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 2 | 2 | 2 | 3 | 05 | 2 | 0 | 1 | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 2 | 0 | 1 | 1 | 1 | 1 | 0 | 06 | 0 | 0 | 2 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 3 | 0 | 1 | 0 | 1 | 0 | 07 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 2 | 1 | 1 | 1 | 3 | 1 | 0 | 08 | 0 | 0 | 1 | 2 | 0 | 2 | 4 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 1 | 1 | 2 | 3 | 1 | 09 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 2 | 1 | 0 | 4 | 0 | 0 | 3 | 0 | 1 | 10 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 1 | 2 | 0 | 0 | 0 | 1 | 2 | 1 | 3 | 1 | 0 | 0 | 0 | 1 | 11 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 2 | 0 | 0 | 1 | 1 | 0 | 0 | 12 | 0 | 0 | 0 | 1 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 0 | 2 | 5 | 2 | 2 | 1 | 1 | 1 | 13 | 0 | 3 | 4 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 1 | 3 | 1 | 2 | 0 | 14 | 1 | 1 | 1 | 4 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 2 | 2 | 2 | 2 | 0 | 0 | 4 | 0 | 0 | 0 | 15 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 2 | 1 | 2 | 0 | 16 | 0 | 1 | 1 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 4 | 2 | 1 | 0 | 4 | 5 | 1 | 2 | 17 | 0 | 3 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 2 | 4 | 0 | 4 | 4 | 3 | 1 | 18 | 0 | 1 | 2 | 1 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 4 | 1 | 19 | 0 | 2 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 2 | 1 | 3 | 3 | 1 | 2 | 1 | 20 | 1 | 1 | 3 | 1 | 4 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 2 | 1 | 2 | 2 | 2 | 21 | 1 | 2 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 0 | 0 | 1 | 2 | 3 | 1 | 22 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 2 | 0 | 1 | 0 | 1 | 2 | 0 | 1 | 1 | 3 | 0 | 0 | 2 | 0 | 1 | 2 | 23 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 1 | 2 | 0 | 0 | 24 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 3 | 2 | 1 | 2 | 1 | 0 | 25 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 3 | 2 | 2 | 0 | 1 | 26 | 0 | 2 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 3 | 2 | 2 | 3 | 1 | 2 | 2 | 0 | 0 | 27 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 28 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 3 | 1 | 4 | 0 | 1 | 1 | 29 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 1 | 2 |??? |??? |??? | 30 | 1 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 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 | 1 | 0 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 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 | 1 | 0 | 0 | 16 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 17 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 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 |??? |??? |??? | 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 : Kazuyoshi Kanatsu Location : Matsue, Shimae, Japan (133.06 E, 35.48 N) Frequency: 53.755 MHz Antenna : 2el. COMET HB9CV Receiver : ITEC HRO-RX1a 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 Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 1 | 5 | 10 | 2 | 3 | 6 | 5 | 6 | 3 |Mar 01 | 6 | 4 | 2 | 5 | 3 | 8 | 1 | 2 | 2 | 0 | 1 | 1 | 3 | 3 | 3 | 3 | 1 | 4 | 4 | 1 | 5 | 7 | 3 | 4 | 02 | 2 | 2 | 1 | 0 | 1 | 0 | NS | NS | 1 | 0 | 0 | 0 | 4 | 0 | 0 | 1 | 3 | 2 | 4 | 1 | 3 | 3 | 4 | 1 | 03 | 9 | 3 | 2 | 5 | 3 | 2 | 0 | 0 | 2 | 0 | 2 | 2 | 1 | 3 | 3 | 1 | 1 | 6 | 1 | 3 | 2 | 6 | 6 | 3 | 04 | 4 | 3 | 0 | NS | 1 | 3 | 1 | 1 | 2 | 3 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 3 | 1 | 3 | 3 | 5 | 5 | 05 | 0 | 1 | NS | 0 | 3 | 1 | 1 | 0 | NS | 0 | 0 | 1 | 3 | 2 | 1 | 4 | 3 | 4 | 1 | 1 | 3 | 5 | 4 | 4 | 06 | 2 | NS | 5 | 2 | 2 | NS | NS | NS | 0 | 0 | NS | 0 | 1 | 0 | 3 | NS | 0 | 1 | 3 | 2 | 5 | 1 | 0 | 7 | 07 | 5 | 1 | 3 | 5 | 2 | 3 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 2 | 1 | 1 | 1 | 7 | 7 | 2 | 4 | 2 | 08 | 2 | NS | 0 | NS |??? | 0 | 0 | 2 | 0 | 0 | 0 | 2 | 3 | 3 | 1 | 1 | 2 | 2 | 0 | 1 | 0 | 3 | 7 | 7 | 09 | 0 | 4 | 3 | 2 | 0 | NS | NS | 2 | 2 | 0 | 4 | 1 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 1 | 1 | 8 | 2 | NS | 10 | 0 | 2 | 3 | 2 | 1 | 2 | NS | NS | NS | 0 | 1 | 0 | 2 | 5 | 1 | 4 | 3 | 0 | 1 | 1 | 0 | 0 | 3 | 2 | 11 | 1 | 2 | NS | 0 | NS | NS | NS | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 3 | 4 | 1 | 0 | 2 | 3 | 5 | 2 | 12 | 0 | 1 | 3 | 1 | 0 | 0 | 0 | 2 | 3 | 2 | 0 | 2 | 1 | 3 | 0 | 0 | 2 | 1 | 2 | 3 | 1 | 1 | 1 | 5 | 13 | 5 | 4 | 6 | 3 | 6 | 3 | 1 | 0 | 1 | 0 | 0 | 4 | 0 | 1 | 6 | 4 | 2 | 4 | 2 | 2 | 4 | 8 | 1 | 5 | 14 | 2 | 5 | 5 | 3 | 0 | 4 | 1 | 0 | 0 | 1 | 0 | 0 | 3 | 5 | 2 | 2 | 1 | 5 | 2 | 1 | 4 | 8 | 10 | 3 | 15 | 5 | 0 | 1 | 1 | 2 | 0 | 2 | 0 | 2 | 1 | 1 | 1 | 5 | 4 | 6 | 6 | 9 | 2 | 3 | 2 | 2 | 6 | 10 | 3 | 16 | 6 | 2 | 2 | 1 | 5 | 3 | 1 | 1 | 0 | 0 | 0 | 1 | 2 | 1 | 3 | 4 | 0 | 0 | 1 | 3 | 6 | 4 | 3 | 3 | 17 | 3 | 5 | 5 | 0 | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 3 | 6 | 3 | 3 | 3 | 1 | 2 | 4 | 4 | 3 | 18 | 2 | 1 | 2 | 0 | 1 | 0 | 1 | 2 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 1 | 2 | 3 | 3 | 1 | 4 | 4 | 4 | 1 | 19 | 5 | 0 | 0 | 0 | 0 | 4 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 4 | 4 | 1 | 1 | 3 | 4 | 2 | 5 | 2 | 7 | 6 | 20 | 3 | 4 | 4 | 0 | NS | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 2 | 1 | 2 | 2 | 2 | 1 | 5 | 3 | 3 | 8 | 2 | 1 | 21 | 0 | 0 | 1 | 1 | 0 | NS | NS | 0 | 0 | 3 | 0 | 0 | 2 | 0 | 4 | NS | 1 | 0 | 0 | 1 | 1 | 3 | 3 | 2 | 22 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 2 | 1 | 1 | 0 | 2 | 8 | 4 | 6 | 6 | 4 | 4 | 7 | 8 | 2 | 3 | 23 | 5 | 0 | 0 | 1 | 2 | 2 | 5 | 2 | 1 | NS | 0 | 2 | 1 | 5 | 0 | 4 | 4 | 7 | 7 | 8 | 8 | 8 | 9 | 8 | 24 | 1 | 4 | NS | NS | NS | 0 | 1 | 1 | 0 | 1 | 2 | 0 | 0 | 2 | 2 | 2 | 1 | 3 | 2 | 3 | 4 | 4 | 5 | 3 | 25 | 4 | 1 | 0 | NS | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 3 | 0 | 0 | 0 | 0 | 1 | 2 | 3 | 7 | 1 | 3 | 2 | 0 | 26 | 0 | NS | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 3 | 2 | 0 | 0 | 2 | 3 | 1 | 2 | 3 | 5 | 27 | 4 | 0 | 3 | 2 | NS | NS | NS | NS | 2 | 1 | 0 | 1 | 1 | 1 | 2 | 3 | 1 | 4 | 4 | 3 | 5 | 7 | 4 | 5 | 28 | 4 | NS | 1 | 1 | 0 | NS | NS | 0 | 0 | 1 | 1 | 0 | 2 | 2 | 4 | 1 | 1 | 3 | 4 | 5 | 2 | 6 | 4 | 1 | 29 | 2 | 5 | 2 | 0 | 0 | 1 | NS | 1 | 0 | 0 | 2 | 1 | 2 | 0 | 1 | 1 | 0 | 3 | 2 | 3 | 5 | 6 | 6 | 4 | 30 | 2 | 2 | 0 | 2 | 2 | NS | NS | NS | 0 | 2 | 0 | 0 | 2 | 1 | 8 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 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 | 1 | 0 | 0 |Mar 01 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | NS | NS | 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 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 06 | 0 | NS | 0 | 0 | 0 | NS | NS | NS | 0 | 0 | NS | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 07 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 08 | 0 | NS | 0 | NS |??? | 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 | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | NS | 10 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | NS | 0 | NS | NS | NS | 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 | 1 | 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 | 1 | 0 | 0 | 0 | 20 | 0 | 0 | 0 | 0 | NS | 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 | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 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 | 1 | 0 | 0 | 23 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 24 | 0 | 0 | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 26 | 0 | NS | 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 | NS | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 0 | NS | 0 | 0 | 0 | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 29 | 0 | 1 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | 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. In Japan, radio meteor observation has become the major meteor observation by means of development of low-price receiver and useful automatic data-taking software (HROFFT by Mr.K.Ohkawa). There are 70 observational sites in Japan, most of which utilize the radio source of 53.750MHz (50W) transmitted at Fukui-NCT(by Mr.K.Maegawa). FM-radio Observation has become difficult in Japan because of the recent increase of small-FM staions. I hope RMOJ will be helpful to radio observers, as well as all meteor observers. Hiroshi Ogawa 2020.05.07