Radio Meteor Observation in Japan No.280 February 2025 - English : https://www.iprmo.org - Japanese: https://jpn.iprmo.org ----------------------------------------------------------------------------- Observer : Kenji Fujito Location : Yokkaichi, Mie, Japan (34.96 N, 136.61 E) Frequency: 53.100 MHz (50W JA2SDA, Toyokawa, Japan) Transmitter Location:　 HAM beacon (JA2SDA 50 W CW, 53.100 MHz), Toyokawa, Aichi, Japan Antenna : 2el. Comet HB9CV, zenith Receiver: ITEC HRO-RX1a Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Feb| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 5 6 8 11 16 12 8 11 8 8 8 7 5 2 5 4 3 1 1 3 6 6 11 4 02 | 5 9 6 13 8 16 9 13 10 5 7 9 6 3 1 4 2 4 1 5 4 3 12 7 03 | 8 5 15 19 14 12 20 10 8 7 8 7 7 8 3 2 2 0 0 2 1 10 6 8 04 | 11 11 19 16 15 16 15 16 7 3 8 4 1 6 4 4 1 3 1 6 5 9 4 7 05 | 10 8 11 13 18 12 7 9 5 6 6 9 4 5 0 0 1 1 1 1 6 6 11 9 06 | 7 15 9 14 12 9 7 7 10 5 4 2 3 6 6 1 1 2 0 1 2 6 6 5 07 | 4 6 12 10 11 12 15 12 3 4 5 8 2 2 0 0 4 0 1 0 2 2 7 6 08 | 6 9 13 12 15 15 11 15 11 11 2 4 13 8 5 4 1 2 1 2 5 6 7 9 09 | 12 6 13 12 15%14 6 6 18 9 6 7 6 5 7 3 0 4 %4 %5 5 10 8 5 10 | 9 6 13 17 18 9 14 7 9%11 9 17 11 5 2 2 3 1 6 2 8 5 10 8 11 | 15 14 14 21 20 12 12 11 14 11 10 2 7 5 7 3 3 4 3 3 3 8 13 7 12 | 4 8 11 13 16 9 5 8 13 6 9 8 7 8 4 2 0 0 2 1 4 6 5 8 13 | 11 8 5 12 9 13 10 9 2 6 7 5 10 2 4 3 1 4 2 4 3 7 4 10 14 | 14 10 17 16 18 10 8 6 11 8 13 8 6 7 6 1 2 0 1 2 2 7 7 3 15 | 6 3 16 9 5 15 11 4 8 4 5 14 6 12 1 1 3 1 0 4 4 9 6 11 16 | 7 3 19 14 9 10 11 5 2 9 10 5 10 5 8 3 0 3 3 3 5 6 7 3 17 | 7 2 12 12 11 10 7 11 13 6 13 8 4 11 5 7 1 2 3 2 4 5 7 14 18 | 8 13 15 7 18 9 14 5 14 9 6 10 5 6 4 7 2 2 1 2 1 7 8 4 19 | 11 9 13 13 11 11 15 6 7 3 9 9 7 6 6 %9 -- -- -- -- %6 4 4 13 20 | 7 15 9 16 15 14 14 6 10 5 1 3 3 6 4 0 1 0 1 1 2 2 5 5 21 | 5 5 12 4 11 9 7 10 4 6 10 2 3 3 4 2 3 1 0 3 4 4 2 7 22 | 4 3 5 8 12 9 12 4 5 4 3 2 2 3 0 3 2 0 1 3 1 4 6 10 23 | 5 14 11 9 13 12 6 6 13 8 4 5 5 1 0 1 0 1 0 1 5 3 4 8 24 | 7 11 9 8%11 10 11 6 8 4 4 5 4 4 0 0 0 1 3 6 3 1 3 4 25 | 4 10 15 8 10 10 11 3 9 2 7 7 3 2 4 1 1 1 2 3 1 3 9 5 26 | 8 7 9 7 3 4 2 5 6 6 1 7 6 2 2 0 1 0 0 2 1 3 3 7 27 | 6 4 8 9 7 9 12 2 3 3 9 2 3 2 4 0 0 1 0 1 1 3 2 6 28 | 5 5 2 3 12 9 1 10 8 2 8 5 10 9 2 2 1 1 1 3 3 4 7 5 ---+------------------------------------------------------------------------ Feb| 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 Feb| 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 | 2 1 04 | 1 05 | 06 | 1 07 | 1 08 | 09 | 1 10 | 1 11 | 12 | 1 1 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 1 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 1 ---+------------------------------------------------------------------------ Feb| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST note: --: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- Observer : Tuboi Observatory[TSUBOI MASAKI] Location : Asakitaku,Hiroshimashi,JAPAN (34.45 N, 132.50 E) Frequency: 53.372 MHz Antenna : 2el. HB9CV Az:60deg. horizon. Transmitter Location: HAM beacon (JE3AKE) (50W CW, 53.372MHz) Receiver: R820T2-SDR+TCXO SDRRadio Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Feb| 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 1 1 2 4 1 1 1 1 2 5 2 3 5 3 3 5 3 3 0 3 1 3 02 | 2 0 0 1 1 0 2 4 1 1 4 2 4 5 6 3 1 0 6 6 1 4 5 2 03 | 3 0 2 0 2 0 6 2 3 13 0 4 7 3 2 2 1 1 1 1 1 1 3 3 04 | 2 2 6 2 2 6 6 0 9 6 6 2 6 5 2 4 1 1 0 9 4 4 0 0 05 | 1 3 5 5 2 3 3 4 2 2 6 6 0 4 0 2 2 0 1 0 3 4 1 0 06 | 2 0 0 3 2 1 5 1 2 2 14 7 3 3 4 1 0 4 0 0 7 2 4 0 07 | 1 1 1 1 0 1 0 3 2 6 3 1 0 1 1 0 0 0 0 0 0 1 2 1 08 | 1 1 0 0 0 1 0 1 1 0 3 1 1 2 0 0 3 0 %0 0 2 2 0 0 09 | 0 0 0 0 0 0 0 1 2 3 2 1 0 0 1 0 0 0 1 0 0 2 0 0 10 | 0 0 IF IF IF IF IF %0 0 0 1 2 2 0 0 1 0 0 1 3 2 1 0 1 11 | 1 0 0 0 0 0 0 0 0 0 0 0 2 1 2 1 1 0 0 0 0 1 1 0 12 | 0 0 0 0 0 1 0 0 2 0 0 %4 0 0 0 0 0 0 0 0 0 0 1 1 13 | 1 0 0 1 0 0 0 2 1 0 0 0 0 1 0 0 0 0 0 2 1 0 1 0 14 | 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 2 4 0 0 3 15 | 0 2 3 0 0 0 0 0 0 2 0 0 0 0 2 0 0 1 0 0 0 2 0 0 16 | 0 0 0 0 0 1 0 0 0 0 0 3 0 0 0 1 %0 %0 0 0 0 0 0 1 17 | 0 0 0 0 1 2 2 0 1 0 1 4 1 0 0 0 0 0 3 0 1 0 0 0 18 | 0 0 3 0 0 0 0 1 2 3 2 1 6 1 1 4 0 0 0 3 3 4 5 0 19 | 0 0 0 3 1 0 2 1 1 3 5 3 3 1 3 2 1 1 1 0 6 1 1 1 20 | 0 0 2 2 0 2 0 2 3 3 4 2 2 3 %0 1 1 0 0 1 3 1 0 0 21 | 0 1 0 0 1 4 4 5 3 6 2 IF %3 1 6 1 0 0 0 1 1 1 0 1 22 | 1 2 0 2 2 0 3 2 6 2 4 3 5 4 3 0 1 0 1 0 0 1 4 2 23 | 2 1 4 0 5 4 4 6 6 9 4 9 2 4 1 5 3 1 2 5 1 1 1 0 24 | 2 1 2 IF %6 1 3 4 4 2 2 3 2 2 4 1 0 0 0 0 0 0 0 2 25 | 5 1 2 3 2 4 %1 0 2 0 2 9 3 1 0 1 0 3 2 0 2 1 1 0 26 | 1 3 6 4 2 3 0 %2 4 3 5 2 1 3 4 1 %2 2 0 0 2 1 1 %1 27 | 0 %2 %2 1 0 2 4 6 6 4 3 3 2 0 2 1 1 0 0 0 1 0 1 0 28 | IF IF 2 3 4 4 3 0 2 4 3 2 3 6 0 3 0 0 1 2 0 1 2 0 ---+------------------------------------------------------------------------ Feb| 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 Feb| 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 | 05 | 1 1 06 | 07 | 1 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 1 19 | 1 20 | 21 | 22 | 1 23 | 1 1 24 | 25 | 26 | 27 | 28 | ---+------------------------------------------------------------------------ Feb| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST Frequency: 112.000 MHz Transmitter Location: Komatsu-VOR Beacon for Air-flight Antenna : 5el-Yagi Az60deg. Receiver: R820T2 & SDR+TCXO SDRradio Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Feb| 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 1 4 4 0 1 3 5 4 4 7 7 7 4 3 5 3 3 0 0 2 2 0 3 02 | 3 3 2 1 0 2 2 4 5 3 3 2 7 11 3 3 2 1 2 3 2 1 5 2 03 | 3 3 1 0 3 4 3 1 10 12 3 8 8 5 6 1 3 1 3 4 1 1 0 1 04 | 2 1 2 0 1 0 0 1 3 0 0 2 2 1 2 2 2 2 1 0 2 2 5 1 05 | 6 10 3 3 0 4 3 5 3 4 9 10 3 4 5 3 2 2 3 0 1 1 3 5 06 | 3 1 3 9 2 4 4 4 3 9 5 2 3 6 3 3 4 2 0 1 2 1 3 4 07 | 2 2 4 2 2 1 5 6 7 5 9 7 5 3 6 3 1 3 4 2 5 0 4 2 08 | 4 2 2 0 3 1 5 2 4 4 4 11 4 4 3 1 5 3 1 1 1 1 1 3 09 | 4 5 3 3 5 1 3 6 9 5 %8 IF IF IF 2 0 3 0 0 4 1 3 2 2 10 | 3 4 1 1 3 3 1 8 6 3 2 3 3 1 2 3 4 3 1 2 0 2 2 1 11 | 2 1 3 1 1 2 3 2 4 9 2 3 1 4 2 3 1 1 2 1 3 2 3 3 12 | 0 0 6 2 1 2 1 2 1 1 2 2 4 4 2 %2 %0 1 3 1 3 0 2 2 13 | 7 2 0 1 0 1 3 5 9 4 0 3 2 3 3 3 3 3 0 2 0 1 2 1 14 | 3 6 0 0 1 2 12 2 5 4 4 4 0 3 3 2 0 0 4 1 1 1 1 1 15 | 1 1 3 0 0 1 4 3 9 5 7 3 1 3 1 2 1 2 2 0 2 4 1 2 16 | 2 2 2 1 3 4 2 4 3 2 5 2 4 %5 %6 1 2 3 0 %0 1 5 0 4 17 | 6 0 1 1 5 1 1 1 5 5 3 7 3 5 3 0 1 4 2 3 0 4 1 0 18 | 4 2 3 2 3 2 5 2 8 2 3 2 0 3 2 3 4 2 2 1 2 1 1 2 19 | 1 0 4 3 4 3 2 7 5 2 4 2 5 2 0 5 1 2 2 5 2 3 2 4 20 | 5 3 4 2 3 5 2 2 2 9 3 4 2 1 1 2 3 2 1 1 0 2 4 2 21 | 1 1 1 1 3 7 2 5 6 3 2 4 3 1 1 1 0 4 2 0 0 3 2 5 22 | 2 6 4 4 1 1 2 5 8 6 5 7 %5 IF IF IF IF %4 0 1 1 2 0 2 23 | 5 0 4 3 2 5 5 6 5 2 3 4 3 4 5 3 1 2 2 1 1 1 5 5 24 | 2 3 5 4 4 1 3 4 6 5 7 3 1 4 2 1 1 1 2 2 2 0 0 1 25 | 3 6 3 2 %4%12 3 8 4 2 2 3 1 3 1 3 1 2 0 0 0 0 0 0 26 | 1 0 0 0 1 6 3 4 5 4 4 1 3 1 1 4 2 2 0 1 1 2 1 1 27 | 3 4 3 3 0 2 0 2 4 1 6 5 4 0 0 1 4 4 1 3 1 2 0 0 28 | 0 1 1 0 0 0 2 1 1 1 1 1 0 0 5 3 4 3 1 4 2 2 2 2 ---+------------------------------------------------------------------------ Feb| 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 Feb| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 1 1 02 | 03 | 1 1 04 | 1 05 | 1 1 1 06 | 07 | 1 08 | 09 | 10 | 1 11 | 1 12 | 13 | 14 | 15 | 16 | 1 17 | 18 | 1 19 | 1 1 20 | 21 | 1 22 | 23 | 1 24 | 1 25 | 26 | 1 27 | 28 | ---+------------------------------------------------------------------------ Feb| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST note: --: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- Observer :Hirofumi Sugimoto Location : Hachioji, Tokyo, Japan (35.654 N, 139.319 E) Frequency: 53.372 MHz Transmitter Location: HAM beacon (JE3AKE) (50W-100W CW, 53.372MHz) Antenna : HB9CV 3el. Az:240deg. horizon. Receiver: RTL-SDR HDSDR Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Feb| 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 12 18 12 21 25 24 22 13 23 20 9 14 11 9 4 10 8 5 8 12 12 12 16 100W 02 | 19 20 16 17 18 15 15 23 24 25 8 9 10 %7 6 7 4 7 2 4 11 9 12 12 03 | 13 7 15 14 9 15 13 23 18 10 16 13 7 4 5 8 3 6 3 10 8 12 21 15 04 | 10 19 16 12 11 9 18 19 18 17 19 14 11 17 6 4 3 8 4 8 6 9 22 18 05 | 19 19 18 17 14 11 17 16 20 18 14 20 15 16 12 6 2 3 7 9 7 10 20 10 06 | 19 20 16 12 13 18 9 12 24 17 18 10 11 7 8 6 7 2 2 3 5 13 14 13 07 | 10 14 11 8 8 17 14 14 14 %6 9 6 6 10 2 4 2 0 0 3 4 0 9 10 08 | 4 7 3 5 4 9 3 5 6 9 4 4 10 5 4 3 5 0 2 1 4 8 4 6 100W->50W 09 | 3 1 1 6 3 4 3 6 -- 2 5 2 3 3 0 1 3 1 1 1 4 1 0 2 10 | -- -- -- -- -- -- -- -- -- 2 5 3 5 3 1 0 1 0 1 2 2 1 6 5 11 | 3 3 4 5 2 3 3 5 5 5 4 4 11 5 6 2 3 2 1 0 3 6 7 11 12 | 3 8 7 5 8 7 10 8 15 9 6 4 6 %6 -- -- -- -- 2 1 6 9 8 8 13 | 8 4 4 5 5 8 7 7 1 4 2 3 2 1 2 2 0 %1 2 1 2 1 0 1 14 | 0 1 4 3 1 1 2 1 3 2 1 0 0 0 1 0 1 1 4 0 3 0 0 3 15 | 1 2 1 2 1 1 0 1 2 2 %2 0 0 1 3 1 1 0 1 1 1 2 0 4 16 | 2 3 1 3 4 3 4 %4 2 7 5 2 4 0 2 1 0 2 1 3 6 3 4 3 17 | 1 3 2 4 3 4 5 8 6 6 5 2 -- -- -- -- -- 2 2 6 4 6 2 6 18 | 7 3 7 5 %4 9 6 7 11 9 7 1 5 3 0 7 3 2 1 3 1 4 3 5 19 | 6 4 8 4 6 9 8 8 6 5 2 3 5 3 3 2 0 2 2 5 9 3 3 7 20 | 8 5 13 9 4 6 9 8 7 11 12 6 4 4 2 2 4 3 3 6 4 8 7 10 21 | 4 12 6 4 14 3 11 3 14 12 11 4 6 7 7 0 0 4 2 1 3 6 3 4 22 | 1 7 7 5 6 8 5 5 7 7 8 5 3 5 4 5 3 3 1 1 3 6 8 5 23 | 6 3 5 6 6 10 7 7 5 8 5 9 2 0 1 3 0 2 1 4 3 5 3 6 24 | 6 3 7 4 7 6 10 7 6 7 5 1 2 1 1 2 2 3 2 9 8 2 5 7 25 | 9 6 7 6 4 7 4 6 11 7 9 3 6 2 3 1 2 2 0 2 5 4 6 4 26 | 4 7 7 10 0 6 2 13 10 14 3 7 2 3 2 2 1 3 0 2 8 5 4 8 27 | 2 3 7 8 6 8 9 6 7 13 7 9 4 1 6 1 1 0 2 3 5 9 8 6 28 | 7 4 12 3 10 7 5 6 13 11 5 7 7 2 1 4 2 5 3 4 4 2 8 5 ---+------------------------------------------------------------------------ Feb| 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 Feb| 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 1 03 | 2 1 1 04 | 1 05 | 1 1 06 | 1 1 07 | 08 | 09 | 1 10 | 11 | 1 1 12 | 1 1 13 | 14 | 1 15 | 1 16 | 17 | 18 | 19 | 1 1 20 | 1 21 | 22 | 23 | 1 24 | 25 | 26 | 27 | 28 | 1 1 ---+------------------------------------------------------------------------ Feb| 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 -- Feb| 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 1 7 4 7 1 7 9 4 3 6 5 2 5 2 4 2 1 2 1 3 4 7 1 02 | 10 0 5 4 1 1 5 5 5 8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 03 | -- -- -- -- -- -- -- --%15 7 4 9 4 3 0 2 3 2 1 3 6 4 4 6 04 | 5 2 1 3 2 9 9 3 7 6 9 3 2 4 1 3 0 1 0 1 3 0 1 1 05 | 2 3 3 3 3 3 2 %1 6 6 4 3 4 2 1 0 0 0 0 0 1 1 3 3 06 | 5 2 5 4 1 1 2 2 4 8 4 7 3 6 3 5 2 2 4 6 8 6 2 3 07 | 2 1 5 3 8 1 8 7 5 %4 %4 4 4 2 1 1 1 0 1 0 3 2 1 1 08 | %5 0 3 2 4 2 3 0 3 2 0 5 %4 -- -- -- -- 2 2 2 3 1 5 3 09 | 1 0 3 2 1 3 1 3 -- 0 3 1 3 4 2 2 1 1 0 2 2 1 0 2 10 | 1 1 1 5 1 0 3 2 1 4 %3 %4 -- 4 3 -- -- %3 2 2 3 4 2 3 11 | 1 1 2 3 3 4 1 2 1 5 2 3 %6 %4 3 2 0 0 0 3 3 1 5 0 12 | 3 3 1 3 2 1 3 3 1 4 4 0 2 0 1 1 1 0 0 0 0 4 2 %1 13 | 3 2 2 1 5 1 1 1 1 9 4 5 6 7 4 0 0 4 3 0 4 2 4 1 14 | 6 3 4 3 5 1 2 5 5 2 4 3 4 3 4 2 5 0 1 5 8 4 5 4 15 | 2 1 3 3 2 1 1 6 4 5 3 2 1 3 3 0 2 2 3 1 2 2 1 0 16 | 3 2 6 1 1 2 4 2 3 4 3 0 6 3 2 0 2 0 7 1 2 3 3 5 17 | 7 3 4 5 3 2 2 5 5 5 9 0 8 1 3 1 1 0 0 2 2 4 %0 5 18 | 3 4 4 5 0 1 3 5 6 9 6 2 2 -- %2 2 3 3 0 1 3 2 2 6 19 | 2 3 2 5 6 8 1 2 4 %7 -- -- -- -- -- -- 1 %2 1 3 4 3 4 0 20 | 1 0 3 2 4 4 4 3 6 3 9 3 5 5 3 2 3 2 2 2 2 1 3 8 21 | 0 2 2 2 3 1 0 5 6 6 4 3 3 %2 1 2 1 0 0 4 6 5 2 2 22 | 4 2 5 4 0 3 4 %7 -- 3 3 2 3 6 5 2 -- -- -- -- -- -- -- -- 23 | -- -- -- -- -- -- -- -- %6 4 5 7 5 %3 %4 0 0 1 2 4 1 2 6 4 24 | 2 1 1 2 2 5 3 8 1 9 -- %3 2 4 %0 1 2 2 3 4 4 5 7 7 25 | 4 3 3 2 1 0 3 4 7 5 3 2 8 1 2 2 3 2 1 3 1 6 4 4 26 | 3 3 4 5 5 2 4 1 4 4 4 2 5 1 2 2 2 3 3 2 6 3 9 3 27 | 2 3 2 3 3 5 %2 3 3 5 %4 -- %4 %4 3 3 0 0 1 6 2 2 2 3 28 | 3 2 3 3 3 2 1 7 6 8 3 4 4 3 3 %4 3 2 3 2 3 3 5 3 ---+------------------------------------------------------------------------ Feb| 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 Feb| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 01 | 02 | 03 | 04 | 1 1 05 | 06 | 1 1 07 | 08 | 09 | 10 | 1 11 | 12 | 13 | 1 14 | 15 | 16 | 17 | 1 18 | 19 | 20 | 1 21 | 1 22 | 23 | 24 | 25 | 26 | 27 | 28 | 1 ---+------------------------------------------------------------------------ Feb| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST note: --: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- Observer :Matsuda Masahiko Location : Kawaguchi-city SAITAMA JAPAN(139.71E, 35.82N) Frequency: 53.372 MHz Transmitter Location: HAM beacon (JE3AKE) (50W-100W CW, 53.372MHz) Antenna : 2ele HB9CV Ant. 12mH WEST Receiver: ICOM IC-R75 USB -- Total number of echoes -- Feb| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 22 | 2 7 7 7 7 11 6 9 10 6 2 1 0 1 2 0 0 0 2 2 1 4 8 4 23 | 3 2 6 5 2 10 8 8 5 6 4 1 0 2 0 2 3 0 2 2 1 2 2 2 24 | 2 3 3 4 4 1 4 4 6 2 3 0 1 1 0 0 0 0 2 9 6 3 6 8 25 | 5 2 9 6 4 7 2 7 8 5 4 4 7 0 2 0 6 2 1 2 6 8 5 6 26 | 12 8 11 10 2 11 1 11 6 11 6 4 3 2 5 0 0 3 1 8 4 7 3 5 27 | 6 5 5 8 8 7 8 9 11 6 5 2 3 0 1 0 0 0 4 10 6 8 7 13 28 | 8 3 8 5 17 8 12 3 13 10 9 7 5 2 2 5 5 2 2 8 10 6 9 8 ---+------------------------------------------------------------------------ Feb| 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 Feb| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST ---+------------------------------------------------------------------------ 22 | 23 | 1 24 | 25 | 26 | 27 | 1 28 | 1 1 ---+------------------------------------------------------------------------ Feb| 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST note: --: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- Observer : Hiroshi Suzuki Location : Soma, Fukushima, Japan (37.79 N, 140.98 E) Frequency: 52.905 MHz Transmitter Location:　 HAM beacon (50 W CW, 52.905 MHz), Higashimurayama, Tokyo, Japan Antenna : AF-4 (4el.) horizon, dir: west Receiver: RTL-SDR Method : by using HROFFT software (by Kazuhiko Ohkawa) -- Total number of echoes -- Feb| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|JST ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 01 | 0 | 2 | 1 | 2 | 1 | 0 | 0 | 1 | 1 | 0 | 3 | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 2 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 03 | 2 | 1 | 0 | 1 | 0 | 1 | 2 | 1 | 3 | 2 | 1 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 1 | 04 | 0 | 0 | 2 | 1 | 2 | 0 | 0 | 0 | 0 | 2 | 2 | 1 | 2 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 05 | 1 | 4 | 1 | 1 | 2 | 1 | 0 | 1 | 0 | 1 | 2 | 2 | 2 | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 06 | 1 | 0 | 3 | 1 | 1 | 0 | 0 | 2 | 2 | 0 | 0 | 2 | 1 | 1 | 0 | 3 | 3 | 1 | 0 | 0 | 0 | 2 | 1 | 2 | 07 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 2 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 2 | 0 | 0 | 1 | 2 | 2 | 08 | 0 | 1 | 1 | 1 | 0 | 2 | 1 | 0 | 0 | 2 | 2 | 1 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 09 | 1 | 2 | 0 | 1 | 0 | 0 | 0 | 2 | 2 | 2 | 0 | 1 | 1 | 2 | 1 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 10 | 0 | 1 | 0 | 0 | 2 | 0 | 2 | 0 | 0 | 1 | 1 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 11 | 1 | 2 | 2 | 0 | 3 | 4 | 0 | 1 | 1 | 4 | 0 | 0 | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 12 | 2 | 2 | 4 | 1 | 0 | 2 | 1 | 0 | 0 | 1 | 1 | 2 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 13 | 2 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 1 | 2 | 3 | 2 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 14 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 4 | 2 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 0 | 2 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | 0 | 1 | 1 | 0 | 3 | 2 | 1 | 3 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 1 | 2 | 0 | 0 | 0 | 2 | 1 | 2 | 2 | 0 | 0 | 1 | 1 | 1 | 2 | 0 | 0 | 1 | 1 | 3 | 0 | 0 | 0 | 18 | 0 | 1 | 1 | 2 | 2 | 3 | 1 | 1 | 0 | 2 | 3 | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 3 | 0 | 3 | 19 | 2 | 0 | 1 | 4 | 4 | 1 | 2 | 3 | 3 | 1 | 2 | 1 | 2 | 1 | 1 | 0 | 0 | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 20 | 0 | 1 | 1 | 2 | 1 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 21 | 2 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 1 | 2 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 22 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 3 | 23 | 0 | 3 | 0 | 0 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 1 | 1 | 2 | 1 | 0 | 0 | 0 | 2 | 2 | 0 | 24 | 0 | 1 | 1 | 2 | 2 | 0 | 0 | 0 | 1 | 1 | 3 | 0 | 1 | 1 | 0 | 1 | 2 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 25 | 0 | 0 | 1 | 1 | 0 | 1 | 2 | 1 | 1 | 3 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 3 | 0 | 1 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Feb| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|JST Echoes longer than 20 seconds Feb| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|JST ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 01 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 03 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 04 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 06 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 07 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 08 | 0 | 1 | 1 | 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 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 20 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 24 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 27 | 1 | 2 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 28 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Feb| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|JST note: ???: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- Observer: Hironbu Shida Location: Akita, Akita, Japan (140.1 E, 39.4 N) Frequency: 53.372 MHz Transmitter Location: HAM beacon (JE3AKE) (50W CW, 53.372MHz) 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 -- Feb| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 9 | 16 | 12 | 16 | 21 | 9 | 9 | 13 | 6 |Jan 01 | 22 | 9 | 9 | 17 | 5 | 14 | 2 | 0 | 5 | 8 | 4 | 7 | 8 | 17 | 9 | 6 | 9 | 6 | 13 | 4 | 11 | 12 | 13 | 22 | 02 | 21 | 26 | 20 | 10 | 12 | 13 | 13 | 5 | 16 | 2 | 11 | 10 | 22 | 24 | 12 | 16 | 15 | 22 | 20 | 23 | 15 | 15 | 10 | 31 | 03 | 24 | 13 | 7 | 13 | 14 | 7 | 11 | 0 | 1 | 1 | 2 | 0 | 2 | 0 | 11 | 16 | 14 | 26 | 27 | 20 | 11 | 34 | 11 | 0 | 04 | 9 | 2 | 45 | 19 | 10 | 24 | 9 | 5 | 5 | 2 | 6 | 5 | 1 | 0 | 13 | 6 | 9 | 6 | 5 | 11 | 6 | 8 | 7 | 6 | 05 | 17 | 5 | 2 | 6 | 12 | 5 | 4 | 0 | 6 | 7 | 7 | 0 | 2 | 1 | 5 | 3 | 10 | 23 | 10 | 13 | 5 | 6 | 8 | 0 | 06 | 10 | 16 | 6 | 9 | 9 | 4 | 6 | 1 | 1 | 1 | 2 | 6 | 0 | 12 | 11 | 5 | 8 | 16 | 6 | 17 | 12 | 17 | 5 | 5 | 07 | 9 | 7 | 5 | 10 | 11 | 5 | 4 | 5 | 4 | 4 | 3 | 11 | 14 | 16 | 9 | 2 | 10 | 12 | 19 | 25 | 13 | 17 | 20 | 24 | 08 | 14 | 17 | 12 | 14 | 6 | 7 | 7 | 2 | 0 | 0 | 0 | 4 | 15 | 20 | 4 | 10 | 13 | 14 | 21 | 23 | 19 | 21 | 23 | 19 | 09 | 15 | 12 | 15 | 13 | 14 | 8 | 9 | 5 | 1 | 10 | 9 | 15 | 18 | 10 | 17 | 7 | 13 | 11 | 18 | 5 | 7 | 7 | 24 | 15 | 10 | 16 | 4 | 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 | 6 | 2 | 4 | 2 | 12 |??? | 14 | 24 | 19 | 7 | 16 | 15 | 15 | 19 | 19 | 28 | 25 | 35 | 12 | 21 | 27 | 20 | 16 | 21 | 12 | 25 | 23 | 6 | 18 | 7 | 15 | 24 | 19 | 1 | 3 | 0 | 0 | 13 | 12 | 16 | 13 | 20 | 27 | 13 | 22 | 12 | 14 | 13 | 2 | 0 | 3 | 3 | 1 | 2 | 4 | 7 | 3 | 3 | 6 | 6 | 11 | 2 | 12 | 14 | 17 | 24 | 24 | 32 | 14 | 13 | 13 | 21 | 16 | 7 | 15 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 2 | 4 | 15 | 2 | 0 | 2 | 2 | 0 | 4 | 2 | 0 | 2 | 2 | 0 | 2 | 0 |??? | 0 | 2 | 2 | 4 | 0 | 2 | 3 | 5 | 4 | 5 | 16 | 1 | 2 | 1 | 2 | 2 | 0 | 2 | 0 | 0 | 1 | 2 | 0 | 3 | 0 | 2 | 1 | 3 | 2 | 2 | 3 | 4 | 4 | 1 | 12 | 17 | 0 | 4 | 0 | 3 | 0 | 2 | 1 | 0 | 0 | 2 | 6 | 4 | 3 | 4 | 7 | 3 | 4 | 3 | 2 | 6 | 2 | 1 | 2 | 1 | 18 | 3 | 7 | 1 | 3 | 2 | 5 | 2 | 3 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 2 | 0 | 3 | 4 | 0 | 0 | 2 | 2 | 19 | 5 | 4 | 6 | 0 | 6 | 2 | 2 | 0 | 0 | 1 | 2 | 2 | 4 | 3 | 3 | 2 | 2 | 4 | 5 | 5 | 5 | 2 | 5 | 3 | 20 | 0 | 2 | 2 | 1 | 3 | 1 | 0 | 0 | 0 | 3 | 0 | 0 | 3 | 2 | 1 | 0 | 2 | 0 | 2 | 4 | 5 | 4 | 5 | 21 | 21 | 3 | 4 | 5 | 2 | 2 | 4 | 0 | 0 | 1 | 2 | 2 | 2 | 7 | 5 | 6 | 8 | 6 | 13 | 13 | 13 | 24 | 15 | 12 | 14 | 22 | 9 | 11 | 13 | 7 | 9 | 9 | 5 | 5 | 0 | 0 | 0 | 0 | 9 | 7 | 6 | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 8 | 10 | 15 | 3 | 0 | 3 | 4 | 6 | 2 | 6 | 12 | 8 | 12 | 8 | 7 | 23 | 13 | 19 | 21 | 17 | 15 | 20 | 15 | 24 | 7 | 0 | 8 | 4 | 2 | 6 | 2 | 6 | 0 | 2 | 5 | 3 | 7 | 9 | 10 | 4 | 5 | 3 | 12 | 9 | 13 | 13 | 11 | 15 | 25 | 11 | 8 | 1 | 6 | 7 | 8 | 6 | 7 | 2 | 6 | 8 | 5 | 8 | 12 | 11 | 4 | 6 | 9 | 14 | 12 | 15 | 15 | 18 | 23 | 26 | 15 | 5 | 15 | 11 | 14 | 6 | 9 | 6 | 6 | 8 | 4 | 11 | 7 | 11 | 19 | 8 | 11 | 10 | 10 | 9 | 12 | 21 | 23 | 20 | 27 | 15 | 13 | 8 | 8 | 12 | 7 | 9 | 5 | 3 | 5 | 6 | 6 | 5 | 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 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Feb| 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 Feb| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ 31 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |Jan 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 | 1 | 0 | 1 | 0 | 0 | 04 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 06 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 07 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 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 | 0 | 0 | 0 | 0 | 0 |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 12 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 14 | 0 | 0 | 0 | 0 | 0 | 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 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 21 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Feb| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT note: ???: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening ----------------------------------------------------------------------------- Observer : Hirotaka Otsuka Location : Hirakata, Osaka, Japan (135.7 E, 34.9 N) Frequency: 53.100 MHz Antenna : 2el-HB9CV, 4mH (90-270 Azimuth(East-West), 90elevation) Transmitter Location:　 HAM beacon (JA2SDA 50 W CW, 53.100 MHz), Toyokawa, Aichi, Japan Reciever: YAESU FT-690 Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Feb| 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 | 5 | 3 | 2 | 1 | 0 | 2 |Jan 01 | 1 | 0 | 4 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 2 | 2 | 3 | 1 | 4 | 2 | 4 | 02 | 2 | 4 | 4 | 2 | 3 | 0 | 1 | 0 | 1 | 1 | 0 | 2 | 0 | 1 | 1 | 0 | 0 | 3 | 6 | 4 | 1 | 3 | 0 | 2 | 03 | 2 | 3 | 2 | 3 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 3 | 5 | 2 | 5 | 1 | 1 | 04 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 2 | 0 | 2 | 0 | 2 | 2 | 1 | 2 | 05 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 4 | 2 | 1 | 1 | 0 | 3 | 06 | 1 | 2 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 2 | 0 | 1 | 0 | 0 | 0 | 2 | 2 | 4 | 1 | 0 | 1 | 3 | 2 | 07 | 0 | 1 | 2 | 1 | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 2 | 0 | 1 | 1 | 08 | 0 | 2 | 1 | 1 | 2 | 1 | 1 | 3 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 2 | 1 | 3 | 1 | 2 | 2 | 1 | 09 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 3 | 2 | 4 | 1 | 1 | 10 | 2 | 1 | 1 | 2 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 1 | 2 | 1 | 1 | 2 | 11 | 0 | 3 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 6 | 1 | 1 | 0 | 5 | 5 | 12 | 1 | 2 | 0 | 0 | 3 | 0 | 0 | 1 | 0 | 4 | 0 | 1 | 1 | 0 | 0 | 0 | 3 | 0 | 2 | 4 | 1 | 2 | 3 | 0 | 13 | 1 | 2 | 1 | 2 | 0 | 0 | 1 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 2 | 1 | 1 | 3 | 4 | 14 | 4 | 1 | 1 | 1 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 1 | 2 | 1 | 4 | 0 | 3 | 2 | 15 | 0 | 0 | 4 | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 1 | 1 | 3 | 0 | 1 | 4 | 3 | 16 | 1 | 0 | 0 | 3 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | 3 | 0 | 2 | 1 | 2 | 3 | 5 | 17 | 0 | 1 | 2 | 0 | 1 | 0 | 0 | 1 | 0 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 4 | 2 | 1 | 2 | 1 | 18 | 1 | 0 | 0 | 1 | 5 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 2 | 2 | 0 | 19 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 2 | 1 | 2 | 0 | 2 | 20 | 1 | 0 | 0 | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 21 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 2 | 0 | 5 | 4 | 3 | 2 | 2 | 4 | 0 | 22 | 1 | 0 | 3 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 4 | 1 | 0 | 1 | 2 | 1 | 5 | 3 | 2 | 1 | 1 | 1 | 6 | 23 | 1 | 1 | 2 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 5 | 3 | 1 | 3 | 0 | 0 | 24 | 0 | 0 | 1 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 2 | 1 | 1 | 4 | 3 | 6 | 3 | 3 | 25 | 1 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 3 | 5 | 5 | 1 | 1 | 2 | 3 | 2 | 26 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 1 | 2 | 3 | 3 | 3 | 2 | 4 | 3 | 1 | 3 | 27 | 0 | 2 | 1 | 3 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | 0 | 1 | 0 | 2 | 2 | 1 | 4 | 0 | 3 | 1 | 0 | 2 | 2 | 28 | 3 | 0 | 0 | 1 | 3 | 0 | 1 | 1 | 0 | 1 | 3 | 0 | 2 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Feb| 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 Feb| 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 | 2 | 1 | 0 | 0 | 0 | 1 |Jan 01 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 02 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 03 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 04 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 05 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 06 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 07 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 08 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 10 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 11 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 3 | 1 | 12 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 1 | 0 | 0 | 0 | 13 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 14 | 2 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 15 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 16 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 2 | 17 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 1 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 28 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Feb| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT note: ???: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening ----------------------------------------------------------------------------- Observer: Norihiro Nakamura Location: Tsukuba, Ibaraki, Japan (140.1 E, 36.0 N) Frequency: 52.905 MHz Transmitter Location:　 HAM beacon (50 W CW, 52.905 MHz), Higashimurayama, Tokyo, Japan Antenna : Dipole Receiver : YAESU FT-817 Method : by using MROFFT software (by Michinari Yamamoto) manual count using HROview and HROreport (by Michinari Yamamoto) -- Total number of echoes -- Feb| 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 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 11 | 6 | 15 | 4 | 7 | 6 | 7 | 1 | 4 |Jan 01 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 1 | 0 | 2 | 2 | 10 | 10 | 4 | 17 | 10 | 4 | 6 | 1 | 3 | 02 | 4 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 2 | 4 | 8 | 10 | 9 | 5 | 7 | 5 | 0 | 0 | 03 | 1 | 1 | 0 | 0 | 3 | 2 | 2 | 0 | 1 | 0 | 1 | 3 | 1 | 3 | 5 | 9 | 3 | 10 | 4 | 10 | 6 | 2 | 2 | 0 | 04 | 2 | 1 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 3 | 5 | 9 | 7 | 7 | 6 | 5 | 4 | 2 | 0 | 05 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 0 | 1 | 0 |??? |??? | 6 | 6 | 7 | 6 | 8 | 6 | 1 | 1 | 2 | 06 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 4 | 6 | 6 | 4 | 8 | 10 | 9 | 5 | 4 | 2 | 07 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 6 | 4 | 3 | 7 | 5 | 11 | 5 | 6 | 5 | 0 | 3 | 08 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 9 | 5 | 10 | 4 | 9 | 5 | 1 | 1 | 0 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 3 | 5 | 6 | 6 | 6 | 6 | 7 | 3 | 2 | 10 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 1 | 2 | 4 | 6 | 5 | 7 | 7 | 6 | 7 | 4 | 1 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? | 0 | 2 | 1 | 4 | 3 | 5 | 6 | 4 | 1 | 9 | 4 | 14 | 6 | 7 | 1 | 0 | 12 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? | 12 | 10 | 9 | 5 | 9 | 5 | 2 | 1 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 8 | 4 | 7 | 7 | 5 | 4 | 4 | 2 | 0 | 14 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 7 |??? | 4 | 5 | 4 | 5 | 7 | 3 | 0 | 0 | 0 | 15 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 3 | 0 | 4 | 6 | 3 | 6 | 0 | 3 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 3 | 4 | 9 | 4 | 7 | 7 | 7 | 1 | 1 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 7 | 2 | 3 | 5 | 7 | 9 | 4 | 5 | 0 | 1 | 18 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 1 | 1 | 3 | 8 | 7 | 3 | 3 | 4 | 5 | 5 | 2 | 1 | 19 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 2 | 0 | 3 | 8 | 6 | 8 | 7 | 9 | 4 | 4 | 3 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 3 | 7 | 6 | 5 | 10 | 11 | 10 | 6 | 2 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 1 | 2 | 1 | 0 | 5 | 5 | 3 | 11 | 5 | 1 | 6 | 5 | 4 | 0 | 22 | 0 | 0 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | 3 | 0 | 1 | 1 | 3 | 7 | 8 | 4 | 10 | 8 | 5 | 9 | 6 | 2 | 0 | 23 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 3 | 8 | 5 | 1 | 1 | 6 | 1 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 3 | 7 | 6 | 10 | 10 | 5 | 7 | 5 | 2 | 0 | 25 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 5 | 10 | 8 | 6 | 6 | 2 | 4 | 2 | 0 | 26 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 9 | 7 | 6 | 6 | 1 | 3 | 5 | 1 | 27 | 3 | 0 | 2 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 1 | 3 | 3 | 0 | 1 | 3 | 3 | 3 | 4 | 0 | 2 | 28 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Feb| 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 Feb| 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 |Jan 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 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 06 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 07 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? | 0 | 1 | 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 | 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 | 1 | 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 | 1 | 0 | 0 | 1 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 1 | 0 | 0 | 1 | 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 | 1 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Feb| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT note: ???: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening ----------------------------------------------------------------------------- Observer : Yoshikawa Yasufumi/JG2MLI Location : Nagoya Aichi-pref. JAPAN (136.90E, 35.20N) Frequency: 52.905 MHz Transmitter Location: HAM Beacon/JJ1RLQ(Higashi-murayama Tokyo, Japan) Antenna : 8mH 2el. HB9CV Horizontal:ENE Receiver: SMArt RTL-SDR V5 + HDSDR Method : by using HROFFT software (by Kazuhiko Ohkawa), manual count using HROview and HROreport (by Michinari Yamamoto) Total number of echoes Feb| 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 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 11 | 5 | 3 | 4 | 6 | NS | NS | 4 | 6 |Jan 01 | 7 | 6 | 4 | 5 | 2 | 4 | 2 | 1 | 3 | 0 | 1 | 2 | 2 | 0 | 2 | 2 | 4 | 4 | 3 | 3 | NS | NS | 6 | 3 | 02 | 6 | 3 | 6 | 1 | 4 | 4 | 3 | 2 | 3 | 0 | 2 | 1 | 0 | 1 | 2 | 5 | 0 | 5 | 1 | 2 | NS | NS | 2 | 5 | 03 | 3 | 7 | 6 | 8 | 4 | 7 | 5 | 0 | 0 | 2 | 2 | 3 | 2 | 0 | 3 | 5 | 5 | 2 | 4 | 7 | NS | NS | 8 | 6 | 04 | 3 | 13 | 4 | 6 | 2 | 3 | 0 | 0 | 0 | 2 | 2 | 3 | 1 | 3 | 2 | 3 | 6 | 6 | 1 | 6 | NS | NS | 5 | 8 | 05 | 3 | 6 | 7 | 7 | 7 | 3 | 2 | 2 | 3 | 1 | 0 | 4 | 2 | NS | 2 | 1 | 6 | 2 | 4 | 1 | NS | NS | 7 | 7 | 06 | 6 | 3 | 7 | 5 | 3 | 1 | 1 | 1 | 0 | 1 | 0 | NS | NS | NS | NS | 7 | 2 | 4 | 6 | 6 | NS | NS | 5 | 7 | 07 | 4 | 6 | 3 | 4 | 6 | 0 | 5 | 2 | 2 | 0 | 2 | 1 | NS | NS | 2 | 2 | 6 | 4 | 5 | 6 | NS | NS | 3 | 7 | 08 | 8 | 5 | 5 | 8 | 4 | 4 | 5 | 2 | 2 | 3 | 0 | 1 | 2 | 6 | 6 | 3 | 5 | 1 | 5 | 3 | NS | NS | 6 | 2 | 09 | 5 | 9 | 7 | 7 | 4 | 4 | 4 | 2 | 2 | 1 | 2 | 0 | 2 | 0 | 4 | 1 | 3 | 3 | 7 | 4 | NS | NS | 4 | 5 | 10 | 5 | 4 | 5 | 6 | 2 | 3 | 3 | 3 | 4 | 1 | 1 | 1 | 3 | 2 | 5 | 2 | 6 | 4 | 1 | 2 | NS | NS | 3 | 4 | 11 | 5 | 4 | 3 | 4 | 4 | 2 | 2 | 1 | 3 | 0 | 1 | 2 | 0 | NS | 4 | 2 | 1 | 3 | 5 | 3 | NS | NS | 4 | 7 | 12 | 8 | 7 | 5 | 6 | 2 | 1 | 2 | 2 | 1 | 1 | 3 | 1 | 3 | NS | 2 | 3 | 4 | 2 | 3 | 5 | NS | NS | 6 | 6 | 13 | 4 | 8 | 5 | 4 | 4 | 4 | 2 | 1 | 3 | 2 | 0 | 1 | 2 | 0 | 0 | 2 | 4 | 4 | 2 | 2 | NS | NS | 4 | 8 | 14 | 6 | 3 | 8 | 3 | 3 | 3 | 1 | 3 | 1 | 0 | 2 | 2 | 2 | 0 | 6 | 0 | 4 | 6 | 2 | 6 | NS | NS | 3 | 7 | 15 | 8 | 2 | 7 | 7 | 3 | 1 | 2 | 1 | 0 | 0 | 0 | 1 | 2 | 2 | 7 | 2 | 8 | 7 | 5 | 3 | NS | NS | 5 | 4 | 16 | 5 | 7 | 11 | 9 | 3 | 1 | 0 | 1 | 0 | 1 | 2 | 1 | 2 | 0 | 1 | 3 | 5 | 6 | 4 | 3 | 2 | 3 | 5 | 5 | 17 | 5 | 6 | 6 | 6 | 6 | 5 | 2 | 4 | 1 | 1 | 1 | 1 | 1 | 0 | 2 | 3 | 5 | 2 | 2 | 9 | 3 | 5 | 4 | 5 | 18 | 5 | 7 | 4 | 5 | 6 | 4 | 1 | 0 | 1 | 1 | 4 | 0 | 1 | 1 | 0 | 3 | 7 | 2 | 3 | 2 | 4 | 4 | 8 | 6 | 19 | 2 | 2 | 4 | 2 | 8 | 0 | 1 | 0 | 1 | 1 | 2 | 2 | 5 | NS | 2 | 4 | 4 | 6 | 6 | 4 | 8 | 3 | 4 | 2 | 20 | 3 | 5 | 3 | 3 | 0 | 5 | 2 | 5 | 2 | 2 | 1 | 5 | 1 | 3 | 3 | 3 | 3 | 4 | 5 | 4 | 5 | 5 | 3 | 8 | 21 | 8 | 6 | 5 | 3 | 7 | 3 | 4 | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 4 | 2 | 3 | 4 | 5 | 3 | 2 | 6 | 4 | 22 | 9 | 5 | 6 | 9 | 7 | 7 | 1 | 4 | 0 | 1 | 2 | 1 | 2 | 3 | 2 | 1 | 2 | 6 | 5 | 2 | 3 | 2 | 6 | 8 | 23 | 13 | 5 | 6 | 2 | 3 | 3 | 2 | 1 | 2 |??? |??? | 2 | 2 | 1 | 0 | 0 | 3 | 4 | 5 | 6 | 4 | 1 | 3 | 2 | 24 | 3 | 1 | 2 | 5 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 3 | 0 | 1 | 3 | 0 | 7 | 6 | 5 | 1 | 4 | 5 | 25 | 2 | 3 | NS | 3 | 3 | 3 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 2 | 1 | 6 | 3 | 1 | 2 | 2 | 2 | 26 | 4 | 4 | 3 | 2 | 3 | 6 | 1 | 2 | 2 | 0 | 1 | 2 | 2 | 0 | 1 | 1 | 3 | 1 | 3 | 2 | 1 | 5 | 4 | 6 | 27 | 3 | 4 | 3 | 3 | 4 | 4 | 0 | 1 | 2 | 0 | 2 | 2 | 4 | 0 | 2 | 2 | 3 | 2 | 4 | 9 | 2 | 2 | 4 | 5 | 28 | 7 | 6 | 5 | 8 | 6 | 5 | 2 | 0 | 2 | 0 | 2 | 1 | 0 | 2 | 5 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Feb| 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 Feb| 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 | 1 | NS | NS | 0 | 0 |Jan 01 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 02 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | NS | NS | 0 | 0 | 04 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 05 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 1 | 0 | 1 | 0 | NS | NS | 0 | 0 | 06 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | NS | NS | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 07 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | NS | NS | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 1 | 14 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 0 | 1 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | NS | 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 | 1 | 0 | 0 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NS | 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 | 2 | 21 | 1 | 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 | 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 | 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 | NS | 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 | 1 | 0 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Feb| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT note: ???: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening ----------------------------------------------------------------------------- Observer: Koichiro Okuno/JI3EMB Location: Habikino, Osaka, Japan (34.3 N, 135.4 E) Frequency: 52.905 MHz　(Mode:LSB) Transmitter Location:　 HAM beacon (JJ1RLQ 50W CW, 52.905 MHz), Higashimurayama, Tokyo, Japan Antenna : GP (DAIMOND CP-6) 7mH Receiver : R820T2 & SDR + TCXO (HDSDR) Method : by using MROFFT software (by Michinari Yamamoto) manual count using HROview and HROreport (by Michinari Yamamoto) Total number of echoes Feb| 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 | 2 | 2 | 1 | 3 | 3 | 0 | 1 | 4 |Jan 01 | 2 | 2 | 0 | 3 | 0 | 0 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 2 | 5 | 4 | 1 | 1 | 3 |??? | 02 |??? | 4 | 5 | 5 | 5 | 6 | 3 | 1 | 1 | 0 | 0 | 0 |??? | 2 | 1 | 1 | 0 | 2 | 0 | 2 | 1 | 0 | 2 | 7 | 03 | 2 | 4 | 1 | 1 | 2 | 0 | 2 | 1 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 1 | 0 | 3 | 0 | 1 | 2 | 3 | 04 | 2 | 4 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 5 | 1 | 4 | 2 | 2 | 05 | 0 | 2 | 4 | 5 | 4 | 2 | 0 | 1 | 1 | 1 | 0 | 2 | 1 | 0 | 0 | 1 | 2 | 0 | 2 | 0 | 0 | 2 | 2 | 5 | 06 | 6 | 1 | 0 | 0 | 0 | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 2 | 0 | 3 | 1 | 2 | 4 | 07 | 1 | 4 | 4 | 0 | 2 | 1 | 0 | 2 |??? |??? |??? |??? |??? |??? | 1 | 2 | 1 | 0 | 1 | 3 | 5 | 0 | 2 | 3 | 08 | 7 | 3 | 2 | 3 | 2 | 2 | 5 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 2 | 2 | 4 | 6 | 5 | 2 | 2 | 6 |??? | 09 | 3 | 5 | 3 | 3 | 2 | 0 | 3 | 1 | 1 | 0 | 1 | 1 | 1 |??? | 2 | 0 | 1 | 0 | 3 | 1 | 0 | 2 | 2 | 3 | 10 | 3 | 2 | 1 | 2 | 1 | 2 | 2 | 0 | 2 | 0 | 2 | 1 | 0 | 0 | 1 | 0 | 4 | 0 | 2 | 2 | 2 | 0 | 6 | 3 | 11 | 2 | 3 | 2 | 3 | 5 | 4 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 2 | 2 | 0 | 1 | 2 | 3 | 1 | 4 | 3 | 7 | 12 | 2 | 1 | 6 | 1 | 6 | 2 | 1 | 0 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 3 | 2 | 2 | 2 | 2 | 1 | 2 | 3 | 1 | 13 | 2 | 0 | 2 | 0 | 3 | 1 | 2 | 0 | 1 | 1 | 1 | 0 |??? | 0 | 0 | 0 | 0 | 3 | 2 | 5 | 1 | 4 | 0 | 7 | 14 | 1 | 3 | 7 | 2 | 4 | 4 | 4 | 4 |??? | 0 | 0 | 4 | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 1 | 3 | 1 | 5 | 4 | 15 | ES | 3 | 6 | 1 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 1 | 4 | 1 | 2 | 0 | 1 | 2 | 2 | 4 | 3 | 0 | 2 | 4 | 16 | 4 | 3 | 5 | 4 | 3 | 1 | 1 | 2 | 1 | 2 | 2 | 1 | 0 |??? | 0 | 0 | 0 | 1 | 1 | 2 | 1 | 2 | 3 | 3 | 17 | 1 | 3 | 0 | 1 | 3 | 2 | 3 | 1 | 2 |??? |??? |??? | 2 | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 4 | 1 | 3 | 3 | 18 | ES | 4 | 1 | 4 | 0 | 3 | 0 | 2 | 0 | 0 | 0 | 1 | 2 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 19 | 1 | 0 | 1 | 4 | 5 | 1 | 1 | 0 | 0 | 1 | 1 |??? |??? | 0 | 1 | 0 | 0 | 1 | 2 | 2 | 2 | 5 | 1 | 2 | 20 | 2 | 3 | 2 | 4 | 1 | 2 | 2 | 2 | 0 | 0 | 3 |??? | 0 | 1 | 4 | 1 | 1 | 2 | 0 | 3 | 4 | 3 | 3 | 2 | 21 | 5 | 9 | 1 | 3 | 0 | 3 | 0 | 1 | 0 | 0 |??? | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 3 | 0 | 0 | 1 | 0 | 0 | 22 | 2 | 0 | 2 | 2 | 2 | 2 | 1 | 3 | 3 | 2 | 3 | 1 | 1 | 2 | 1 | 4 | 0 | 3 | 2 | 3 | 4 | 1 | 8 | 10 | 23 | 4 | NS | 1 | 2 | 2 | 2 | 0 | 4 | 0 | 2 | 1 | 0 | 0 | 0 | 5 | 0 | 2 | 4 | 5 | 2 | 0 | 1 | 1 | 2 | 24 | ES | 0 | 2 | 7 | 3 | 6 | 8 | 1 | 1 | 3 | 1 | 2 | 0 | 1 | 4 | 4 | 1 | 4 | 4 | 3 | 3 |??? | 4 | 8 | 25 | 5 | 3 | 2 | 5 | 2 | 1 | 2 | 3 | 5 |??? |??? | 1 | 0 | 3 | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 0 | 0 | 4 | 26 | 0 | 1 | 4 | 4 | 2 | 3 | 1 | 3 | 1 | 2 | 1 | 1 | 1 | 4 | 4 | 2 | 2 | 3 | 1 | 3 | 0 | 2 | 4 | 3 | 27 | ES |??? | 5 | 6 | 2 | 4 | 2 | 2 | 3 | 2 |??? |??? | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 2 | ES | 28 | ES | 3 | 6 | 2 | 1 | 2 | 1 | 2 | 6 | 9 | 2 | 0 | 1 | 0 | 1 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Feb| 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 Feb| 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 |Jan 01 | 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 | 1 | 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 | 1 | 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 | 1 | 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 | 08 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? | 0 | 0 | 0 | 0 | 1 | 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 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 14 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 15 | ES | 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 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | ES | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? |??? | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 21 | 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 | 1 | 0 | 23 | 0 | NS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | ES | 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 | 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 | ES |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ES | 28 | ES | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |??? |??? |??? |??? |??? |??? |??? |??? |??? | ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Feb| 00h| 01h| 02h| 03h| 04h| 05h| 06h| 07h| 08h| 09h| 10h| 11h| 12h| 13h| 14h| 15h| 16h| 17h| 18h| 19h| 20h| 21h| 22h| 23h|UT note: ???: lost counts because of high noise level or machine failure. %: Hourly rate estimated by effective observation time less than 60 min. NS: something noise IF: Contamination due to radio noise or interference Es: Contamination due to sporadic E opening -------------------------------------------------------------------------------- About the RMOJ... RMOJ reports the results of radio meteor observations in Japan, sent to myself. I hope RMOJ will be helpful to radio observers, as well as all meteor observers. Hiroshi Ogawa 2025.03.03