Radio Meteor Observation in Japan No.258 April 2023 - 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 | 6 9 12 10 9 8 10 3 9 5 0 0 0 2 0 0 1 0 0 4 2 5 5 5 02 | 5 3 9 4 10 7 13 11 2 2 4 3 4 4 3 2 2 2 0 1 1 2 5 4 03 | 7 8 3 4 5 6 9 7 3 5 4 1 1 1 0 0 2 3 4 2 2 3 2 2 04 | 6 6 6 8 6 5 9 1 4 2 5 6 4 0 1 0 2 1 1 1 1 1 0 5 05 | 10 6 6 4 3 6 3 2 4 5 11 4 1 1 1 1 3 0 3 4 2 4 2 5 06 | 4 2 2 8 4 8 4 6 4 7 9 4 6 3 2 1 0 2 5 1 1 0 0 2 07 | 4 3 6 5 7 5 9 8 3 5 4 1 4 2 2 1 2 2 1 2 1 5 7 1 08 | 10 10 5 4 5 2 4 2 4 3 4 1 1 2 %0 %0 0 0 1 0 %1 %5 2 2 09 | 2 10 11 6 8 6 9 %3 NS NS %0 NS NS NS NS NS NS NS NS %0 0 2 0 1 10 | 4 6 10 9 12 11 10 7 5 0 5 3 1 1 4 2 0 0 0 2 2 2 0 6 11 | 5 7 7 6 3 3 9 7 3 2 1 1 1 1 3 1 0 3 0 0 0 3 4 6 12 | 3 10 2 3 1 4 3 4 4 5 3 9 3 %3 4 0 0 0 0 1 0 3 1 5 13 | 7 8 8 8 15 5 8 1 1 0 %2 2 %2 0 1 2 0 0 0 2 4 1 3 3 14 | 3 8 8 3 8 6 2 8 5 6 6 3 3 1 2 1 2 1 0 1 0 1 3 3 15 | 5 5 5 8 9 4 8 4 6 2 6 3 1 4 5 3 1 2 1 3 1 4 2 4 16 | 2 5 5 8 9 4 9 5 3 1 3 4 0 2 1 3 3 0 1 2 1 6 3 8 17 | 6 13 6 13 15 2 7 3 1 0 0 0 NS %0 %1 1 0 0 2 2 2 4 6 9 18 | 15 10 12 14 9 11 7 8 8 8 2 1 2 1 4 1 2 1 1 1 1 1 7 6 19 | 7 8 7 9 6 3 5 7 2 3 4 5 2 5 3 0 4 2 1 3 1 3 1 1 20 | 6 10 6 3 8 3 6 4 6 5 3 5 0 5 7 3 0 2 0 1 3 2 3 2 21 | 3 8 8 3 5 %4 4 4 2 3 2 6 1 1 0 0 0 0 0 1 0 0 2 1 22 | 1 2 3 %3 NS 4 3 2 2 %2 NS NS NS NS NS NS NS %0 %0 0 2 0 4 2 23 | 3 9 8 13 3 8 5 7 2 4 2 3 1 0 2 0 0 0 0 0 0 2 3 3 24 | 9 5 3 2 4 2 8 4 5 7 0 NS 1 0 2 0 0 0 1 1 0 4 3 1 25 | 9 6 6 5 5 4 5 6 2 6 6 5 10 2 %2 %1 1 3 0 3 2 3 4 4 26 | 5 10 10 5 9 4 5 4 3 1 5 4 5 2 2 3 1 0 0 0 3 4 3 3 27 | 3 3 9 12 12 6 15 1 1 4 4 4 0 0 1 0 2 0 0 1 2 0 5 5 28 | 9 5 5 4 1 4 3 6 3 4 4 4 2 1 3 2 0 1 4 2 1 3 7 2 29 | 4 6 5 7 11 8 6 6 9 5 3 8 9 2 4 1 2 0 3 2 3 5 6 6 30 | 4 8 6 8 10 5 4 2 7 4 10 6 3 3 5 2 0 1 2 5 3 5 5 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 | 1 02 | 03 | 04 | 05 | 06 | 07 | 08 | 1 09 | 1 10 | 11 | 12 | 1 13 | 14 | 15 | 16 | 1 17 | 1 18 | 19 | 1 20 | 21 | 1 22 | 23 | 24 | 25 | 1 26 | 27 | 28 | 1 29 | 30 | 1 ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST note: --: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- Observer : Tuboi Observatory[TSUBOI MASAKI] Location : Asakitaku,Hiroshimashi,JAPAN (34.45 N, 132.50 E) Frequency: 50.017 MHz Transmitter Location: Miyazaki University (131.4 E, 31.8 N) HAM beacon (JA6YBR) (50 W CW, 50.017 MHz) No modulation except for identification Antenna : 2el. HB9CV Az:200deg. horizon. Receiver: R820T2-SDR+TCXO SDRRadioMethod : 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 | IF %0 0 0 0 6 4 2 3 5 2 4 0 3 4 4 3 5 1 5 4 2 2 5 02 | 3 3 0 3 1 6 7 5 5 3 5 3 5 5 0 5 5 %4 IF %0 0 1 0 2 03 | 3 3 2 0 5 2 6 4 8 5 7 0 1 2 1 5 %6 IF %0 3 %1 1 %4 5 04 | 2 0 0 1 2 5 3 3 1 1 10 3 7 4 6 7 4 1 2 4 3 0 2 2 05 | 4 4 5 10 6 2 5 7 9 4 6 0 3 4 3 1 1 2 1 2 1 2 0 3 06 | 6 3 4 2 2 7 1 4 7 1 8 2 3 0 2 3 0 1 %2 IF 1 3 4 3 07 | 5 3 7 4 7 3 8 1 4 7 3 5 8 1 6 2 2 IF %2 1 3 IF IF IF 08 | IF IF IF 10 6 8 10 8 5 7 %6 IF IF IF IF IF IF 2 1 %0 IF IF IF IF 09 | IF IF IF IF IF IF 3 1 5 6 2 4 4 1 1 3 4 1 4 3 3 0 3 1 10 | 1 0 0 2 3 9 %4 5 3 9 7 5 2 2 2 5 5 10 %3 IF IF %0 2 2 11 | 6 3 6 9 6 7 3 4 10 3 0 4 3 0 0 2 0 6 1 %6 %4 3 7 8 12 | 6 5 6 8 5 5 15 5 5 8 4 2 1 0 %3 2 1 1 0 3 2 0 0 1 13 | 2 0 0 4 0 5 0 1 2 3 3 5 2 2 2 1 1 1 3 2 %2 IF IF IF 14 | IF IF IF%10 5 3 7 5 8 10 12 4 5 2 1 1 1 6 1 2 2 3 5 8 15 | 4 9 11 7 3 6 7 7 9 6 7 2 2 4 4 2 2 4 2 IF %2 2 10 12 16 | 2 7 %8 %4 5 4 14 10 11 9 7 0 5 2 3 5 2 2 1 1 6 1 6 6 17 | 7 6 6 8 8 6 5 4 5 4 5 4 3 6 1 4 0 3 2 1 2 3 3 1 18 | 3 1 3 0 0 1 0 0 3 5 6 2 1 3 1 4 0 0 1 0 2 1 2 5 19 | 7 3 5 2 6 6 6 7 2 4 2 7 1 7 2 0 2 0 1 1 4 4 4 3 20 | 5 9 4 6 10 6 5 5 12 6 7 3 1 1 1 2 1 2 2 2 1 3 0 3 21 | 7 4 10 8 6 3 1 2 2 3 2 3 0 1 1 1 0 2 1 0 1 2 4 6 22 | 2 0 1 0 0 1 11 5 1 %6 IF IF IF IF IF %2 3 %8%10 IF 2 2 1 3 23 | 2 0 0 0 0 0 3 4 6 11 4 0 1 0 1 0 0 2 5 %8 %2 IF IF IF 24 | %6 5 1 0 1 2 2 0 2 1 0 4 0 1 0 0 0 0 0 3 3 1 3 7 25 | 6 8 5 7 8 5 14 7 8 3 3 3 2 3 4 1 4 5 5 0 4 2 1 9 26 | 8 2 0 1 0 1 1 1 %0 1 3 7 1 1 0 7 1 3 4 1 3 2 3 0 27 | 13 4 3 3 8 6 6 11 1 6 6 1 1 1 0 0 0 1 0 1 IF IF IF %9 28 | IF 0 0 3 2 2 5 1 3 0 0 0 6 5 5 5 3 1 %2 %4 %0 1 1%11 29 | 5 3 2 0 2 3 0 1 5 2 2 0 0 0 1 1 2 3 2 2 4 3 1 5 30 | 5 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 2 3 IF %0 7 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 | 1 03 | 1 04 | 05 | 06 | 1 07 | 08 | 09 | 10 | 1 1 11 | 1 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 1 24 | 25 | 1 26 | 27 | 1 2 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 Frequency: 92.5 MHz Transmitter Location: FM-broadcast at Kagoshima, Japan Antenna : 5el-Yagi Az90deg 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 | 18 28 26 28 27 26 30%24 IF IF IF IF IF IF IF IF IF 11 12 9 8 8 IF IF 02 | %8 21 29 21 26 29 35 20 IF IF IF IF IF IF IF IF IF 9 4 10 3 6 17 22 03 | 18 34 33 39 38 28 25%22 IF IF IF IF IF IF IF IF IF 11 8 11 6 8 13 22 04 | 22 30 35 34 42 36 26 IF IF IF IF IF IF IF IF IF %4 10 9 3 10 7 7 18 05 | 26 30 28 34 20 27 14 19 22 22 27 43 26 34 28 17 6 14 7 8 10 3 7 8 06 | 20 28 17 17 16 16 22 23 26 24%30 IF IF IF 27 19 13 3 6 6 5 4 5 16 07 | 10 18 24 22 11 14 20 17 27 29 32 24 36 32 32 17 %8 9 13 10 12 7 IF 18 08 | 21 23 36 28 23 16 20%32 IF IF IF IF IF IF IF IF IF %5 8 4 2 8 9 14 09 | 20 37 30 25 32 32 24 IF IF IF IF IF IF IF IF IF IF %0 8 2 4 8 IF IF 10 | IF 27 20 31 21 23 29%26 IF IF IF IF IF IF IF IF IF%12 10 8 10 10%14%12 11 | 31 22 46 32 33 27 13%17 IF IF IF IF IF IF IF IF %9 15 3 4 8 8 6 8 12 | 25 19 27 23 29 19 21 25 22 IF%20 IF IF IF IF IF %6 6 4 1 4 11 4 IF 13 | 11 12 10 24 17%14 14 IF IF IF IF IF IF IF IF%10 1 2 %3 2 3 4 10 16 14 | 26 31 32 31 49 41 58 54 IF IF IF IF IF IF IF IF%18 14 19 11 11 9 20 31 15 | 38 29 38 57 35 32 40 43 42 74 IF IF IF IF IF IF IF IF IF 11 15 %8%13 28 16 | IF 44 59 49 40 39 46 IF IF IF IF IF IF IF IF IF%18 15 11 19 11 14%16 15 17 | 39 44 52 48 38 28%53 IF IF IF IF IF IF IF IF IF IF IF 14 10 IF IF IF IF 18 |%56%68 89%82 IF IF IF IF IF IF IF IF IF IF IF IF IF%14 12 18 25 IF IF%26 19 | 43 56 65 51 53 51 54 58%60%33 19 36 31 37 23 11 11 11 6 5 6 8 20 24 20 | 35 47 51 27 40 43 31 30 IF IF IF IF IF IF IF IF IF 14 4 5 6 10 13 15 21 | 39 32 27 32 31 36 22 IF IF IF IF IF IF IF IF IF%20 9 14 7 12 13 15 19 22 | 22 29 27 31 34 35 28%26 IF IF IF IF IF IF IF IF IF%14 9 3 8 8 4 15 23 | 21 31 25 44 20 37 33%41 IF IF IF IF IF IF IF IF 10 10 8 3 4 7 17 9 24 | 19 27 22 25 20 34 16 33 20 27 28 24 37 29 26 14 10 11 4 5 8 6 8 12 25 | 21 21 18 18 15 18 18 16 29 21 18 35 38 34 28 21 4 6 8 %4 IF 6 6 7 26 | 20 10 14 16 20 24 24 16 IF%14%26%34 IF IF IF IF IF %4 10 2 7 10 10 8 27 | 17 23 26 21 22 29 23 IF IF IF IF IF IF IF IF IF IF IF 3 6 4 10 10 12 28 | 20 14 23 23 22 13 23%28 IF IF IF IF IF IF IF IF IF%12 4 5 5 6 6 11 29 | 17 23 23 12 21 28 24 17 20 27 17 20 25 27 26 18 12 10 11 7 7 8 7 14 30 | 17 25 9 18 22 14 20 17 23 21 IF IF IF IF IF IF IF%14 6 4 9 6 11 9 ---+------------------------------------------------------------------------ Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST Echoes longer than 20 seconds Apr| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 1 02 | 1 2 03 | 1 04 | 1 1 05 | 1 1 06 | 07 | 08 | 1 09 | 1 10 | 1 2 2 11 | 12 | 2 1 1 13 | 1 14 | 1 15 | 1 1 1 1 1 16 | 1 2 17 | 18 | 19 | 1 2 2 2 20 | 2 1 1 21 | 1 2 1 1 22 | 1 1 1 23 | 2 2 1 1 4 1 1 24 | 1 2 4 1 1 1 1 25 | 1 1 1 26 | 1 1 27 | 2 2 28 | 29 | 1 30 | 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 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 | 9 9 4 4 3 3 2 2 1 5 3 4 1 5 1 3 1 2 1 1 1 3 2 3 02 | 2 2 2 2 4 4 1 1 4 2 2 4 1 1 0 0 0 0 0 0 0 3 0 1 03 | 3 2 2 1 1 1 2 4 2 3 4 2 4 4 1 1 0 5 0 3 4 0 5 5 04 | 5 3 9 5 8 4 5 5 5 3 6 3 4 4 2 0 3 1 0 4 1 7 4 7 05 | 5 8 7 4 11 6 6 9 9 13 15 8 9 6 7 4 2 1 1 0 3 3 8 7 06 | 9 4 12 11 12 5 12 3 9 6 12 11 5 4 2 3 1 0 4 0 2 3 1 0 07 | 2 8 4 4 14 8 5 7 8 9 8 7 4 7 1 1 0 0 0 2 5 2 4 3 08 | 10 10 7 4 7 3 6 3 0 7 7 1 2 1 4 1 2 0 2 4 1 2 5 7 09 | 4 7 8 7 2 9 4 6 7 9 12 10 1 4 6 3 1 4 2 4 7 3 4 8 10 | 12 9 3 7 8 9 5 11 8 14 4 7 6 3 2 3 1 1 0 2 6 5 4 9 11 | 4 6 8 3 6 3 10 9 13 7 9 3 4 %6 0 3 0 1 1 0 4 6 5 3 12 | 9 5 9 8 5 9 4 5 7 7 7 4 5 4 0 3 3 0 2 4 3 2 2 5 13 | 9 5 4 6 3 4 4 8 9 9 6 5 4 3 2 1 0 0 0 1 1 3 2 7 14 | 8 9 8 4 5 4 4 6 6 2 6 6 2 4 4 0 1 2 3 1 3 2 6 1 15 | 4 5 6 10 8 6 7 4 10 8 6 6 3 6 4 2 2 0 0 0 6 10 4 5 16 | 3 13 7 7 2 7 7 10 6 4 7 5 2 2 3 2 5 0 3 2 2 4 4 6 17 | 6 11 8 3 8 6 7 10 7%12 10 7 7 4 3 4 1 2 1 3 0 5 5 7 18 | 10 9 8 7 3 3 6 7 10 8 18 6 5 2 3 1 1 1 1 2 0 4 3 4 19 | 5 6 2 7 8 5 9 6 6 8 1 1 4 4 2 2 1 2 4 4 1 4 5 5 20 | 11 11 7 13 12 8 11 8 4 5 2 3 3 2 2 1 1 0 1 1 4 6 8 8 21 | 6 4 3 4 3 10 2 11 7 5 5 11 2 2 4 5 0 1 0 1 2 2 4 15 22 | 8 10 10 13 6 9 13 12 8 10 15 5 4 5 1 1 1 1 1 4 2 3 5 8 23 | 7 13 19 7 6 9 17 11 8 18 5 2 6 1 1 3 0 2 2 1 6 7 7 10 24 | 8 10 11 9 8 6 2 10 8 13 13 8 10 1 4 1 2 1 1 1 1 3 3 4 25 | 7 8 10 10 8 3 6 6 7 10 15 13 5 5 2 3 1 1 2 1 0 3 10 12 26 | 6 8 8 5 8 5 7 6 14 14 12 6 9 0 2 1 0 1 1 3 2 4 8 2 27 | 7 13 6 9 6 9 12 5 11 16 2 9 4 1 4 0 2 1 1 2 0 6 5 5 28 | 7 3 2 5 4 4 10 2 2 5 8 12 3 3 3 2 0 2 1 3 4 3 4 4 29 | 8 8 7 8 5 14 7 12 13 8 14 5 4 6 3 1 1 0 0 1 4 4 12 3 30 | 5 6 2 7 4 7 7 18 9 9 9 10 7 6 2 1 4 3 4 2 2 4 3 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 | 1 02 | 1 03 | 04 | 05 | 1 06 | 1 07 | 08 | 09 | 1 1 10 | 11 | 12 | 1 2 1 1 13 | 1 14 | 1 1 15 | 16 | 1 17 | 1 18 | 19 | 1 1 20 | 21 | 1 22 | 23 | 2 1 1 1 1 24 | 1 1 25 | 1 26 | 1 1 27 | 1 28 | 29 | 1 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 | 6 5 6 7 9 7 4 13 6 13 6 4 7 2 6 1 2 1 3 3 5 5 7 11 02 | 12 6 5 7 4 12 9 14 10 8 9 5 12 4 2 6 2 0 4 4 1 8 7 11 03 | 4 9 9 10 4 6 10 10 12 %2 6 11 2 5 2 2 5 3 2 2 7 3 5 6 04 | 12 4 9 8 8 8 10 18 13 7 12 4 5 3 4 2 1 2 3 2 4 4 14 10 05 | 9 6 8 6 14 3 11 9 13 11 5 5 6 3 3 2 4 2 2 0 3 10 4 4 06 | 2 8 5 18 10 10 9 6 7 10 9 6 10 11 3 5 6 5 1 3 2 8 5 11 07 | 8 8 6 5 6 11 10 12 10 7 8 8 5 8 4 3 2 0 0 2 2 3 6 5 08 | 12 5 4 7 8 8 14 9 16 3 3 5 4 5 4 2 4 3 1 7 4 3 6 6 09 | 7 3 3 8 11 4 8 9 14 7 6 4 3 8 10 1 3 5 2 2 4 4 5 7 10 | 6 4 5 7 9 12 16 11 11 9 10 4 6 3 2 6 3 1 2 0 4 3 4 9 11 | 7 7 5 8 9 3 13 18 10 7 2 1 3 2 2 3 4 1 1 3 2 5 2 6 12 | 7 4 3 6 13 9 7 5 11 9 7 2 6 8 7 4 3 5 2 1 8 7 6 11 13 | 9 10 6 8 10 6 12 16 14 13 4 4 3 7 10 7 2 3 1 2 1 2 5 12 14 | 8 5 3 2 14 10 16 14 20 10 8 10 3 2 5 4 1 2 1 3 8 7 10 6 15 | 2 10 3 2 9 7 10 19 19 10 7 3 2 7 6 2 3 2 0 3 6 8 6 14 16 | 6 7 13 13 19 14 9 12 19 6 9 3 6 3 6 2 1 2 0 1 1 5 7 9 17 | 3 7 5 2 5 8 9 13 10 5 4 5 5 5 2 6 2 0 1 0 6 5 10 8 18 | 6 4 5 5 4 8 15 5 12 13 7 1 4 5 4 1 2 1 2 1 5 5 5 6 19 | 11 6 7 7 10 6 4 18 7 4 7 1 7 2 1 3 3 2 1 1 2 6 10 9 20 | 3 11 5 5 6 12 13 15 8 7 9 3 6 3 1 6 1 2 3 1 1 3 5 8 21 | 7 4 9 5 4 8 7 15 9 8 2 3 5 5 1 1 2 2 0 0 6 4 4 6 22 | 7 6 8 3 5 4 6 12 13 6 3 3 5 3 6 3 0 0 0 2 1 8 6 8 23 | 14 15 8 8 14 10 17 12 11 8 8 3 1 3 6 1 2 1 1 0 3 5 5 9 24 | 10 4 10 3 11 10 11 13 9 8 5 5 3 7 1 5 0 2 3 1 2 2 10 6 25 | 6 10 10 7 12 12 9 7 10 8 5 2 5 3 5 4 2 3 1 3 5 3 3 10 26 | 8 5 4 8 6 4 11 13 11 4 5 4 0 6 5 4 3 3 2 2 5 9 6 7 27 | 5 5 8 3 6 12 15 15 11 3 3 0 2 3 3 1 1 4 4 1 2 7 2 8 28 | 5 8 11 4 8 8 11 9 9 5 4 8 2 6 7 2 3 1 3 0 2 5 5 6 29 | 8 5 5 7 10 8 13 13 15 9 8 5 3 7 6 1 0 1 0 4 3 4 5 3 30 | 5 3 3 3 2 8 11 14 14 11 9 8 14 8 8 8 3 3 1 0 3 5 9 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 | 1 02 | 03 | 04 | 05 | 1 06 | 07 | 08 | 1 09 | 10 | 1 1 11 | 1 1 12 | 13 | 14 | 15 | 16 | 1 17 | 1 18 | 1 19 | 20 | 1 21 | 1 22 | 23 | 1 1 1 1 2 24 | 1 1 25 | 26 | 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 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| 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 0 2 0 0 4 5 1 4 2 1 0 2 0 1 1 2 2 5 2 1 0 1 3 02 | 2 3 8 9 3 8 6 6 6 5 2 1 1 2 1 1 3 1 3 2 6 4 4 2 03 | 8 2 3 8 8 8 2 5 13 2 2 3 0 2 3 2 6 11 0 2 0 0 3 2 04 | 1 4 4 4 1 2 3 5 5 2 4 0 0 1 1 0 1 1 0 1 0 0 1 1 05 | 1 6 12 8 3 2 8 4 8 4 5 1 0 0 0 0 0 0 4 1 0 1 0 2 06 | 0 1 1 2 2 0 2 1 2 5 7 3 0 1 1 1 3 1 1 2 0 0 0 0 07 | 1 0 0 1 1 1 1 1 0 1 2 0 0 1 0 1 0 1 1 0 0 0 0 0 08 | 0 0 0 0 0 2 2 0 1 1 0 0 0 1 0 0 1 2 1 0 0 1 1 1 09 | 2 2 1 0 0 0 0 1 0 0 2 0 1 0 2 0 0 0 0 0 3 3 2 1 10 | 1 0 2 0 1 0 4 4 1 2 0 0 2 1 1 3 2 2 4 0 1 0 0 0 11 | 0 3 1 0 2 0 3 1 3 4 0 2 0 2 2 3 0 1 0 0 3 1 0 2 12 | 1 6 1 4 1 0 3 1 0 1 0 2 0 0 1 0 1 0 0 1 0 0 3 0 13 | 1 0 1 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14 | 0 2 0 2 0 1 2 1 1 0 0 1 0 0 1 0 2 1 0 0 0 0 2 1 15 | 3 3 1 1 0 1 4 0 1 1 3 0 1 0 4 0 0 0 0 0 0 1 3 0 16 | 1 4 0 4 1 3 1 5 2 1 1 0 0 0 1 0 0 0 0 0 0 0 2 2 17 | 3 2 0 1 2 4 0 0 2 4 0 1 1 1 0 0 0 0 1 0 1 0 1 0 18 | 2 3 2 3 0 1 1 2 2 2 1 0 0 0 2 1 0 0 0 0 1 3 4 5 19 | 2 2 3 1 1 2 2 2 0 3 1 0 0 0 0 1 0 0 0 0 0 2 2 2 20 | 0 2 1 1 2 0 0 3 2 1 0 0 1 0 5 3 0 1 1 0 2 1 0 2 21 | 1 3 3 2 4 6 5 10 1 2 0 3 0 1 0 1 1 3 2 1 1 0 5 0 22 | 5 1 5 2 9 5 8 5 0 1 2 0 2 2 0 0 0 1 0 0 2 4 7 1 23 | 2 2 5 3 6 4 4 8 8 5 0 2 1 0 1 2 1 1 0 2 0 2 3 5 24 | 4 3 4 4 5 2 1 6 2 3 1 1 1 1 1 1 0 0 1 1 1 1 6 1 25 | 2 2 1 1 1 0 2 2 9 0 0 0 1 0 1 0 0 0 1 1 0 1 0 1 26 | 0 1 0 0 0 3 5 2 0 3 1 0 0 1 0 0 1 0 2 1 1 0 1 2 27 | 0 0 1 3 2 0 3 4 0 0 0 1 2 1 0 0 2 1 2 1 2 1 0 0 28 | 1 0 2 0 4 2 2 2 2 0 5 1 0 0 1 1 0 0 0 1 1 0 2 1 29 | 1 3 2 0 3 3 4 4 8 3 3 0 3 3 2 3 1 2 2 2 1 1 1 0 30 | 0 2 1 0 1 0 0 1 3 0 3 1 1 1 1 1 1 2 0 1 0 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 1 02 | 1 1 03 | 1 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 1 1 13 | 14 | 1 1 15 | 1 1 16 | 1 1 1 17 | 1 18 | 19 | 1 20 | 21 | 1 2 1 1 22 | 1 1 1 1 23 | 1 1 1 1 1 2 24 | 1 1 25 | 1 1 26 | 1 1 1 1 1 27 | 1 1 28 | 29 | 1 30 | 31 | ---+------------------------------------------------------------------------ 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: Norihiro Nakamura Location: Tsukuba, Ibaraki, Japan (140.1 E, 36.0 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 : Dipole Receiver : KENWOOD TH-F7 Method : by using MROFFT software (by Michinari Yamamoto) manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Apr| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 3 | 1 | 6 | 2 | 0 | 1 | 3 | 1 | 3 |Mar 01 | 2 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 2 | 3 | 1 | 3 | 2 | 02 | 1 | 0 | 1 | 1 | 2 | 1 | 2 | 0 | 0 | 4 | 2 | 0 | 1 | 0 | 2 | 2 | 1 | 0 | 3 | 1 | 0 | 1 | 1 | 1 | 03 | 2 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 4 | 2 | 1 | 2 | 0 | 2 | 2 | 0 | 04 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 4 | 3 | 3 | 1 | 05 | 1 | 1 | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 1 | 1 | 1 | 3 | 2 | 3 | 06 | 1 | 4 | 0 | 4 | 0 | 2 | 0 | 0 | 2 | 0 | 3 | 0 | 1 | 0 | 0 | 0 | 1 | 4 | 0 | 1 | 5 | 2 | 3 | 3 | 07 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 2 | 2 | 0 | 0 | 1 | 08 | 1 | 1 | 3 | 1 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 2 | 1 | 1 | 0 | 4 | 2 | 2 | 0 | 1 | 5 | 0 | 1 | 09 | 2 | 1 | 2 | 1 | 0 | 3 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 2 | 0 | 1 | 1 | 1 | 0 | 2 | 0 | 10 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 3 | 0 | 1 | 0 | 1 | 11 | 1 | 0 | 0 | 1 | 0 | 0 | 3 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 2 | 0 | 1 | 0 | 12 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? | 0 | 0 | 3 | 0 | 7 | 3 | 0 | 3 |??? |??? | 13 |??? |??? | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? | 0 | 2 | 2 | 2 | 1 | 5 | 2 | 1 | 14 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 1 | 0 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 2 |??? | 15 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 2 | 4 | 3 | 2 | 4 | 6 | 1 | 1 | 1 | 16 | 0 | 2 | 1 | 0 | 0 | 4 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 3 | 5 | 0 | 2 | 3 | 2 | 3 | 1 | 1 | 17 | 1 | 3 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 2 | 3 | 3 | 2 | 2 | 2 | 0 | 18 | 2 | 0 | 2 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 19 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 20 | 2 | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 3 | 3 | 2 | 0 | 1 | 4 | 2 | 21 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 3 | 1 | 0 | 0 | 0 | 2 | 2 | 1 | 1 | 2 | 2 | 1 | 6 | 1 | 22 | 2 | 4 | 3 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 4 | 6 | 3 | 0 | 3 | 1 | 3 | 4 | 4 | 0 | 23 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 2 | 1 | 8 | 1 | 3 | 0 | 0 | 2 | 0 | 2 | 0 | 3 | 24 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 5 | 1 | 2 | 0 | 3 | 2 | 2 | 1 | 2 | 5 | 1 | 0 | 0 | 0 | 1 | 25 | 2 | 1 | 1 | 1 | 0 | 1 | 2 | 1 | 0 | 2 | 1 | 2 | 1 | 1 | 0 | 2 | 7 | 6 | 3 | 6 | 4 | 2 | 2 | 2 | 26 | 2 | 1 | 0 | 3 | 1 | 1 | 0 | 1 | 0 | 2 | 0 | 0 | 1 | 0 | 1 | 4 | 2 | 4 | 6 | 6 | 1 | 4 | 2 | 0 | 27 | 0 | 1 | 2 | 5 | 1 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 6 | 6 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 28 | 0 | 1 | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 4 | 3 | 5 | 0 | 2 | 1 | 0 | 0 | 4 | 0 | 0 | 29 | 0 | 0 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 3 | 2 | 2 | 30 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 2 | 7 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 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 | 1 | 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 | 1 | 0 | 05 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 06 | 1 | 2 | 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 | 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 | 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 | 1 | 0 | 12 | 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 | 1 | 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 |??? | 15 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 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 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 19 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 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 | 1 | 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 | 1 | 1 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 : 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 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |Mar 01 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 02 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 03 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 04 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 05 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 06 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 1 | 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 | 1 | 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 14 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 16 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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 | 0 | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 1 | 2 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 0 | 25 | 0 | 1 | 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 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 27 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 1 | 0 | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 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 | 1 | 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 | 1 | 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 | 1 | 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 : Hiroshi Ogawa Location : Tsukuba, Ibaraki, Japan (36.04 N, 140.05 E) Frequency: 89.4 MHz (Mode:USB) Antenna : AF-4 (4el.) horizon, dir: south-west Receiver: R820T2 & SDR + TCXO Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using MROview (by K. Arita) and HROreport (by M. 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 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 7 | 3 | NS | 8 | 3 | 7 | 4 | 5 | 6 |Mar 01 | 10 | 8 | 7 | 10 | 6 | 4 | 8 | 6 | 5 | 4 | 6 | 3 | 3 | 8 | 6 | 12 | 6 | 9 | 14 | 4 | 13 | 9 | 11 | 10 | 02 | 7 | 6 | 10 | 9 | 15 | 6 | 3 | 7 | 3 | 4 | 1 | 4 | 6 | 2 | 11 | 5 | 8 | 10 | 18 | 10 | 4 | 8 | 7 | 8 | 03 | 8 | 6 | 10 | 5 | 5 | 9 | 9 | 8 | 6 | 6 | 1 | 5 | 3 | 5 | 7 | 14 | 7 | 4 | 7 | 10 | 9 | 11 | 3 | 9 | 04 | 4 | 13 | 8 | 9 | 5 | 7 | 5 | 4 | 5 | 6 | 6 | 4 | 5 | 5 | 5 | 10 | 7 | NS | 5 | 13 | 6 | 4 | 6 | 5 | 05 | 3 | 7 | 8 | 6 | 10 | 6 | 2 | 4 | 4 | 5 | 3 | 2 | 3 | 7 | 10 | 7 | 11 | 16 | 8 | 17 | 17 | 10 | 10 | 7 | 06 | 12 | 8 | IF | 10 | 13 | 8 | 5 | 4 | 7 | 8 | 3 | 10 | 3 | 4 | 9 | 13 | 11 | 9 | 12 | 15 | 14 | 11 | 10 | 11 | 07 | 6 | 13 | 10 | 12 | 10 | 7 | 4 | 2 | 6 | 8 | 5 | 4 | 9 | 7 | 12 | 8 | 12 | 19 | 11 | 8 | 8 | 13 | 12 | 12 | 08 | 12 | 10 | 8 | 15 | 10 | 6 | 2 | 8 | 0 | 2 | 3 | 2 | 2 | 4 | 9 | 10 | 14 | 14 | 7 | 16 | 13 | 7 | 4 | 2 | 09 | 4 | 7 | 3 | 5 | 7 | 5 | 4 | 2 | 5 | 2 | 4 | 5 | 3 | 6 | 7 | 6 | NS | 5 | 11 | 9 | 11 | 6 | 10 | 9 | 10 | 9 | 4 | 10 | 9 | 9 | 6 | 9 | 4 | 7 | 6 | 2 | 6 | 4 | 7 | 1 | 10 | 14 | 14 | 14 | 9 | 5 | 1 | 3 | 7 | 11 | 2 | 10 | 4 | 5 | 9 | 11 | 8 | 7 | 4 | 3 | 6 | 6 | 4 | 8 | 7 | 9 | 12 | 11 | 14 | 11 | 10 | 9 | 8 | 12 | 12 | 14 | 10 | 9 | 19 | 12 | 5 | 4 | 8 | 4 | 4 | 5 | 3 | 8 | 6 | 1 | 8 | 15 | 12 | 15 | 9 | 8 | 8 | 1 | 13 | 13 | 6 | 15 | 7 | 9 | 10 | 7 | 5 | 10 | 7 | 6 | 6 | 9 | 9 | 6 | 11 | 8 | 9 | 13 | 15 | 12 | 4 | 7 | 9 | 4 | 14 | 12 | 10 | 5 | 14 | 7 | 5 | 14 | 7 | 6 | 4 | 8 | 2 | 9 | 3 | 6 | 5 | NS | 8 | 18 | 14 | 3 | 9 | 4 | 8 | 15 | 10 | 10 | 14 | 13 | 11 | 9 | 4 | 3 | 9 | 5 | 8 | 3 | 10 | 3 | 4 | 4 | 18 | 11 | 12 | 9 | 4 | 4 | 6 | 8 | 16 | 5 | 7 | 6 | 3 | 8 | 3 | 9 | 2 | 7 | 6 | 7 | 3 | 8 | 5 | 7 | 12 | NS | NS | NS | 15 | 13 | 7 | 10 | 8 | 17 | 9 | 12 | 7 | 10 | 5 | 4 | 4 | 7 | 4 | 4 | 3 | 6 | 4 | 9 | 7 | 13 | 13 | 10 | 18 | 18 | 11 | 12 | 10 | 13 | 18 | 4 | 8 | 6 | 8 | 4 | 4 | 6 | 7 | 3 | 2 | 4 | 3 | 2 | 5 | 5 | 8 | NS | 13 | 11 | 11 | 8 | 5 | 11 | 4 | 19 | 7 | 8 | 5 | 4 | 11 | 8 | 3 | 6 | 3 | 4 | 6 | 5 | 6 | 8 | 5 | 8 | 12 | 6 | 15 | 11 | 13 | 12 | 10 | 5 | 20 | 15 | 5 | 9 | 6 | 10 | 9 | 7 | 9 | 7 | 6 | 7 | 9 | 10 | 11 | 10 | 19 | 8 | 17 | 11 | 12 | 10 | 9 | 7 | 13 | 21 | 11 | 15 | 8 | 10 | 14 | 2 | 9 | 7 | 7 | 10 | 5 | 4 | 8 | 5 | 9 | 11 | 17 | 9 | 13 | 15 | 8 | 15 | 12 | 8 | 22 | 10 | 6 | 11 | 6 | 7 | 11 | 6 | 6 | 5 | 4 | 4 | 3 | 4 | 12 | 20 | 14 | 22 | 18 | 14 | 17 | 8 | 15 | 13 | 15 | 23 | 14 | 13 | 16 | 5 | 10 | 9 | 7 | 5 | 4 | 3 | 1 | 4 | 13 | 11 | 12 | 13 | 8 | 6 | 16 | 14 | 9 | 4 | 9 | 8 | 24 | 11 | 8 | 5 | 12 | 6 | 1 | 10 | 9 | 5 | 3 | 0 | 2 | 2 | 9 | 3 | 10 | 13 | 15 | 10 | 19 | 18 | 7 | 10 | 12 | 25 | 7 | 12 | 10 | 11 | 9 | 3 | 5 | 7 | 3 | 5 | 1 | 3 | 7 | 4 | 3 | 6 | 11 | 2 | 9 | 10 | 11 | 8 | 8 | 11 | 26 | 10 | 13 | 11 | 17 | 6 | 10 | 8 | 9 | 8 | 7 | 7 | 7 | 5 | 6 | 9 | 9 | 13 | 11 | 14 | 11 | 11 | 6 | 8 | 10 | 27 | 12 | 9 | 10 | 14 | 8 | 8 | 4 | 6 | 8 | 8 | 8 | 1 | 4 | 5 | 5 | 16 | 13 | 14 | 19 | 10 | 19 | 15 | 9 | 12 | 28 | 13 | 12 | 10 | 7 | 3 | 5 | 5 | 5 | 7 | 3 | 4 | 8 | 7 | 11 | 8 | 8 | 11 | 14 | 17 | 16 | 12 | 12 | 11 | 8 | 29 | 13 | 14 | 11 | 5 | 13 | 6 | 9 | 6 | 5 | 6 | 4 | 8 | 6 | 7 | 15 | 11 | 20 | 19 | 29 | 22 | 20 | 14 | 12 | 18 | 30 | 18 | 12 | 13 | 16 | 18 | 9 | 15 | 6 | 8 | 6 | 2 | 7 | 7 | 7 | 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 | NS | 0 | 0 | 0 | 0 | 0 | 0 |Mar 01 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 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 | 2 | 0 | 0 | 1 | 06 | 0 | 0 | IF | 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 | 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 | NS | 0 | 0 | 0 | 1 | 0 | 1 | 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 | 1 | 0 | 1 | 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 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 16 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | 0 | 1 | 0 | 0 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 22 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 23 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 24 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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 | 1 | 0 | 0 | 1 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 2 | 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 Frequency: 92.5 MHz (Mode:USB) Antenna : AF-4 (4el.) horizon, dir: west Receiver: R820T2 & SDR + TCXO Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using MROview (by K. Arita) and HROreport (by M. 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 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 15 | 12 | 19 | 23 | 30 | 22 | 18 | 14 | 11 |Mar 01 | 14 | 10 | 11 | 10 | 7 | 4 | 8 | 5 | 2 | 4 | 4 | 3 | 4 | 10 | 11 | 28 | 23 | 21 | 18 | 13 | 33 | 17 | 20 | 14 | 02 | 11 | 11 | 9 | 17 | IF | 7 | 6 | 5 | 4 | NS | NS | NS | NS | 8 | 17 | 8 | 22 | 26 | 18 | 18 | 7 | 18 | 13 | 12 | 03 | 10 | 19 | 12 | 14 | 12 | 17 | 9 | 7 | 7 | 9 | 4 | 8 | 6 | 10 | 12 | 25 | 21 | 17 | 18 | 21 | 14 | 20 | NS |??? | 04 |??? | 14 | 17 | 12 | 10 | 16 | 9 | 5 | 2 | 6 | 8 | 6 | 13 | 8 | NS | 20 | 18 | 21 | 10 | 23 | 22 | 15 | 14 | 17 | 05 | 10 | 17 | 16 | 14 | 11 | 2 | 3 | 5 | 6 | 3 | 4 | 5 | 4 | 5 | 9 | 6 | 20 | 25 | 12 | 27 | 21 | 14 | 13 | 12 | 06 | 12 | 11 | 9 | 19 | 15 | 6 | 11 | 5 | 8 | 7 | 9 | 11 | 4 | 5 | 7 | 14 | 19 | 16 | 22 | 23 | 25 | 13 | 17 | 8 | 07 | 10 | 21 | 10 | 16 | 16 | 8 | 5 | 7 | 6 | 7 | 6 | 5 | 12 | 12 | 30 | 16 | 24 | 29 | 19 | 21 | 30 | 17 | 21 | 13 | 08 | 11 | 6 | 10 | 14 | 14 | 19 | 8 | 12 | 5 | 4 | 11 | 7 | 8 | 22 | 14 | 21 | 27 | 33 | 29 | 31 | 22 | 13 | 7 | 11 | 09 | 7 | 14 | 4 | 10 | 10 | 15 | 6 | 7 | 6 | 2 | 6 | 7 | 9 | 11 | 10 | 24 | 36 | 25 | 29 | 18 | 20 | 13 | 20 | 10 | 10 | 12 | 16 | 8 | 12 | 12 | 10 | 9 | 2 | 7 | 7 | 5 | 14 | 7 | 10 | 11 | 24 | 21 | 16 | 33 | 16 | 14 | 11 | 6 | 13 | 11 | 10 | 16 | 12 | 6 | 13 | 13 | 7 | 6 | 5 | 4 | 4 | 7 | 6 | 9 | 11 | 19 | 23 | 22 | 18 | 21 | 17 | 13 | 7 | 7 | 12 | 15 | 12 | 7 | 9 | 9 | 5 | 4 | 7 | 4 | 3 | 2 | 2 | 8 | 7 | 4 | 17 | 27 | 21 |??? |??? |??? |??? |??? |??? | 13 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 29 | 22 | 34 | 33 | 22 | 19 | 16 | 17 | 10 | 14 | 13 | 11 | 5 | 7 |??? |??? |??? |??? |??? |??? |??? |??? |??? | 7 | 9 | 15 | 25 | 22 | 34 | 29 | 30 | 17 | 23 | 23 | 15 | 13 | 12 | 22 | 18 | 23 | 23 | 6 | 4 | 8 | 5 | 6 | 4 | 11 | 18 | NS | 12 | 22 | 27 | 29 | 21 | 21 | 28 | 19 | 19 | 16 | 8 | 8 | 10 | 11 | 13 | 12 | 17 | 4 | 8 | 10 | 5 | 3 | 10 | 9 | 11 | 18 | 24 | 15 | 28 | 28 | 26 | 7 | 16 | 11 | 17 | 14 | 11 | 10 | 12 | 8 | 7 | 7 | 2 | 8 | 6 | 4 | 8 | 3 | 10 | 9 | 14 | 18 | 26 | 36 | 36 | 20 | 19 | 18 | 14 | 18 | 14 | 19 | 11 | 12 | 10 | 10 | 9 | 12 | 11 | 9 | 6 | 5 | 6 | 11 | 16 | 16 | 19 | 28 | 27 | 17 | 15 | 20 | 17 | 9 | 19 | 11 | 12 | 9 | 13 | 15 | 12 | 11 | 6 | 1 | 4 | 7 | 2 | 8 | 10 | 14 | 12 | 24 | 21 | 26 | 22 | 18 | 15 | 13 | IF | 20 | 15 | 12 | 13 | 13 | 18 | 17 | 12 | 12 | 7 | 4 | 7 | 9 | 12 | 15 | 14 | 27 | 9 | 26 | 19 | 28 | 18 | 20 | 13 | 22 | 21 | 17 | 17 | 20 | 21 | 18 | 6 | 12 | 10 | 9 | 9 | 7 | 5 | 8 | 6 | 16 | 23 | 28 | 25 | 22 | 27 | 23 | 21 | 14 | 11 | 22 | 11 | 11 | 13 | 8 | 10 | 12 | 9 | 3 | 5 | 6 | 5 | 2 | 5 | 12 | 19 | 13 | 23 | 22 | 14 | 20 | 15 | 14 | 16 | 18 | 23 | 9 | 10 | 14 | 4 | 7 | 9 | 7 | 6 | 5 | 7 | 2 | 4 | 16 | 19 | 15 | 26 | 17 | 19 | 26 | 24 | 24 | 12 | 15 | 14 | 24 | 20 | 15 | 13 | IF | 10 | 4 | 11 | 3 | 2 | 2 | NS | NS | 6 | 15 | 12 | 15 | 21 | 17 | 15 | 17 | 18 | 8 | 13 | 11 | 25 | 14 | 14 | 10 | 9 | 7 | 8 | 6 | 7 | 7 | 4 | 5 | 3 | 12 | 9 | 12 | 14 | 11 | 10 | 16 | 22 | 23 | 16 | 17 | 22 | 26 | 22 | 14 | 24 | 25 | 10 | 18 | 13 | 9 | 10 | 9 | 11 | 12 | 12 | 17 | 13 | 26 | 30 | 28 | 28 | 24 | 20 | 11 | 14 | 19 | 27 | 14 | 14 | 13 | 25 | 15 | 11 | 6 | 6 | 9 | 8 | 6 | NS | NS | NS | NS | 38 | 23 | 31 | 28 | 26 | 20 | 20 | 14 | 13 | 28 | 19 | 11 | 16 | 15 | 8 | 7 | 6 | 6 | 7 | 3 | 3 | 8 | 12 | 14 | 6 | 18 | 25 | 28 | 25 | 34 | 28 | 13 | 15 | 15 | 29 | 16 | 20 | 17 | 15 | 14 | 7 | 10 | 9 | 5 | 4 | 3 | 3 | 4 | 8 | 11 | 17 | 19 | 14 | 25 | 19 | 21 | 15 | 13 | 20 | 30 | 21 | 17 | 12 | IF | 13 | 12 | 13 | 7 | 7 | 6 | NS | NS | 8 | 8 | 13 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02 | 0 | 0 | 0 | 0 | IF | 0 | 0 | 1 | 0 | NS | NS | NS | NS | 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 | NS |??? | 04 |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 05 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 06 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 1 | 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 | 1 | 0 | 0 | 12 | 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 | 14 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 16 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | IF | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 23 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 24 | 1 | 1 | 0 | IF | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 27 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | NS | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 28 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | IF | 0 | 2 | 0 | 0 | 0 | 0 | NS | NS | 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 2023.05.07