Radio Meteor Observation in Japan No.017 March, 2003 ( http://homepage2.nifty.com/~baron/ ) ----------------------------------------------------------------------------- Observer : Kenji Fujito Location : Yokkaichi, Mie, Japan Frequency: 53.750 MHz Transmitter Location: Fukui-NCT at Sabae city (136.2 E, 35.9 N) HAM beacon (JA9YDB) for RMO (50 W CW, 53.7500 MHz) by JA9BOH Kimio Maegawa. No modulation except for identification Observing method: HROFFT software(by K.Okawa) Antenna : 2el. Comet HB9CV, zenith Receiver: ITEC HRO-RX1a Counting method: manual count Total number of echoes Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 ---+----------------------------------------------------------------------- 01|11 10 16 17 16 11 11 2 9 17 7 5 17 7 2 2 3 7 2 8 8 8 18 26 02|12 14 11 18 25 19 7 5 %2 NS NS NS NS NS NS %4 %0 NS 0 2 7 11 10 18 03|18 14 20 22 22 26 15 18 10 15 14 3 8 9 9 5 2 1 1 4 3 11 10 %4 04|NS NS NS NS NS 12 11 11 7 7 %3 NS NS NS NS NS NS 1 2 2 1 8 7 15 05|12 14 15 21 9 4 8 2 5 2 11 %3 1 2 2 2 %2 NS NS NS 4 %5 6 7 06|13 12 8 14%16 12 11 13 5 8 11 9 6 3 1 2 3 2 1 6 6 15 17 20 07|16 27 27 22 18 14 20 21 10 12 8 11 8 4 6 2 2 1 0 1 1 6 11 9 08| 6 11 15 11 16 17 17 21 11 3 9 3 4 4 3 3 3 0 3 0 4 9 12 19 09| 8 13 14 14 19 16 24 22 6 2 NS NS NS NS NS NS NS NS 0 2 7 8 8 %4 10| 7 20 13 13 15 17 19 14 NS NS NS NS 8 %5 NS NS NS NS %0 2 3 5 5 9 11|13 12 10 16 17 16 6 NS NS %5 NS %4 4 %5 NS NS NS %0 NS 3 3 %4 %6 7 12|12 22 14 23 30 15 21 13 NS NS NS NS %4 NS NS NS NS NS %2 0 3 5 5 9 13|10 20 14 15 24 19 18 15 15 %3 %4 NS NS NS NS NS NS NS %0 1 3 5 9 9 14|12 12 27 20 19 18 18 24 8 6 12 5 4 5 6 2 0 2 0 2 2 4 15 15 15|15 32 23 14 9 19 20 12 11 13 14 5 6 5 3 2 3 4 2 1 5 8 4 7 16| 9 8 12 20 11 18 21 12 8 4%12 11 9 %7 %9 NS 3 2 5 5 5 9 12 19 17|15 16 20 16 23 14 13 7 16 15 7 %4 %4 NS %0 6 1 2 4 3 9 7 9 10 18|21 16 22 22 15 23 10 15 8 11 3 8 5 6 3 5 2 3 1 1 7 6 8 6 19|10 9 17 14 16 22 24 17 12 8 10 7 %7 2 %4 %2 NS %2 0 3 2 12 5 13 20| 9 14 20 18 26 18 21 17 %5 NS %9 NS NS NS NS NS NS NS NS %0 3 %4 10 11 21| 8 19 22 28 17 16%24 13 15 13 %2 10 8 2 9 1 %4 3 4 2 8 8 8 4 22|15 21 24 13 13 22 16 13 15 12 11 8 4 9 4 0 NS %0 %2 %3 4 9 11 9 23| 9 11 10 14 7 14 17 11 7 12 6 10 8 %4 7 3 4 1 1 0 3 7 %6 6 24|19 14 28 23 16 11%12 4 11 8 8 8 3 3 3 2 1 0 1 3 3 8 1 14 25|11 14 16 21 13 18 10 13 15 14 7 4 7 0 NS NS NS NS NS 3 2 2 7 7 26|16 12 17 16 10 14 19 18%13 NS 8 7 13 %3 NS NS NS NS NS NS 3 6 5 9 27| 9 14 18 13 13 10 13 13 8 12 6 6 2 5 7 2 4 1 0 1 3 4 7 4 28| 5 6 13 11 NS 12 6 10 5 2 4 NS %0 NS NS NS NS NS NS 2 4 6 10 12 29|11 20 12 14 15 21 17 10 10 7 NS NS NS NS NS NS NS NS NS NS NS 8 11 7 30|12 16 12 21 15 24 15 9 10 10 1 4 3 5 5 3 1 4 1 4 5 3 14 19 31|18 14 9 13 16 15 10 6 12 11 5 10%10 7 4 3 4 1 2 2 2 3 9 6 ---+----------------------------------------------------------------------- Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 Echoes longer than 20seconds Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 ---+----------------------------------------------------------------------- 01| 02| 03| 1 04| 05| 1 06| 1 07| 1 08| 09| 1 10| 1 11| 12| 13| 14| 1 15| 16| 2 17| 18| 19| 1 20| 1 21| 22| 1 23| 24| 25| 26| 1 27| 28| 1 29| 1 30| 31| ---+----------------------------------------------------------------------- Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 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 : Hironobu Shida Location : Akita, Akita, Japan (39.7N, 140.1E) Frequency: 53.750 MHz Transmitter Location: Fukui-NCT at Sabae city (136.2 E, 35.9 N) HAM beacon (JA9YDB) for RMO (50 W CW, 53.7500 MHz) by JA9BOH Kimio Maegawa. No modulation except for identification Antenna : ITEC HRO-RX1 Receiver: 5ele Observing method: HROFFT software(by K.Okawa) Counting method: manual count - the number of total echo - Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 ---+----------------------------------------------------------------------- 22|-- -- -- -- -- -- -- -- %0 2 6 %1 1 0 1 0 0 1 0 0 0 0 0 0 23| 1 1 0 1 1 1 1 2 0 2 1 0 0 0 %0 0 0 0 0 1 2 1 0 0 24| 0 0 0 1 0 0 0 0 2 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 25| 0 0 1 0 2 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 1 26| 0 0 1 0 1 0 %0 0 2 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 27| 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 28| 0 1 0 0 0 1 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 29| 0 0 0 0 0 2 1 1 0 1 0 0 -- -- -- -- -- -- %0 -- -- -- -- -- ---+----------------------------------------------------------------------- Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 Echoes longer than 20seconds Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 ---+----------------------------------------------------------------------- 22| 23| 24| 25| 26| 27| 28| 29| ---+----------------------------------------------------------------------- Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 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 : Naoki Moriwaki Location : Kure, Hiroshima, Japan (34.2, 132.5E) Frequency: 53.750 MHz Transmitter Location: Fukui-NCT at Sabae city (136.2 E, 35.9 N) HAM beacon (JA9YDB) for RMO (50 W CW, 53.7500 MHz) by JA9BOH Kimio Maegawa. No modulation except for identification Antenna : original loop Receiver: ICOM IC-736 Observing method: HROFFT software(by K.Okawa) Counting method: manual count Total number of echoes Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 ---+----------------------------------------------------------------------- 01| 5 1 1 4 2 5 11 16 21 22 13 9%11 4 4 4 9 6 IF 6 7 6 9 15 02| 8 5 12 11 12 16 15 11 9 IF %6 3 3 %1 IF IF IF IF %6 %6 1 IF IF IF 03|IF%16 10 9 13 10 11 17%14 8 7 11 5 1 5 2 3 7 4 3 3 8 11 10 04|13 10 9 19 17 14 14 18 24 14 13 11 11 6 4 2 1 4 5 4 3 6 15 24 05| 9 12 9 12 17 12 18 17 16 8%14 IF IF IF 4 4 %6 IF IF IF 8 6 1 20 06|14 20 11 15 4 12 7 0 17 13 14 9 10 7 10 8 6 1 4 0 2 10 12 19 07|11 20 15 8 13 10 18 14 23 27 12 16 6 2 3 1 7 3 1 1 3 9 6 11 08|10 10 9 14 8 10 18 14 7 17 8 7 8 4 4 1 4 1 2 1 4 13 IF%11 09|15 18 10 12 16 15 12 19 %9 %6 7 7 3 %4 IF IF IF IF IF 4 4 4 12 13 10|10 7 23 14 20 13 17 17 5 1 4 %9 IF IF IF IF IF IF IF IF IF IF %6%13 11|13 12 16 19 3 3 0 16 1 2 IF IF IF IF IF IF IF IF IF IF %6 %5 5 5 12|15 12 6 10 17 12 16 26 20 8 IF IF IF IF IF IF IF IF IF IF IF IF 3 %2 13|IF %2 2 1 3 8 2 6 IF IF IF IF IF %4 IF IF IF IF IF 7 %0 6 6 4 14%15 11 9 13 13 10 21 26 12 10 10 4 4 2 2 4 3 2 4 7 7 3 14 14 15|11 8 6 14 12 10%12 22 16 20 10 8 5 5 2 4 5 6 IF IF 3 4 14 9 16| 9 12 %8 10 15 17 26 9 13 2 8 %8 IF IF %0 IF IF IF 3 6 3 6 7 17 17|IF %6 10 %8 11 6 12 22 16 17 12 IF 4 IF 4 7 %7 IF %6 6 9 11 17 15 18|14 9 9 10 11 14 19 12 5 12 IF IF IF %6 IF IF IF IF IF IF IF %6 3 5 19| 3 4 12 4 8 15 26 22 14 18 9 IF IF IF IF IF IF IF IF IF IF 11 12 15 20| 5 2 11 18 17 10 14 24 16 9 %5 IF IF IF IF IF IF IF IF IF 6 3 0 5 21| 9 7 14 12 7 19 20 26%10 7 %4 IF IF IF IF IF IF IF IF IF IF IF %6 1 22| 5 2 3 9 13 12 11 25 21 10 13 IF 9 IF IF IF IF IF IF %6 2 9 10 16 23| 6 4 13 17 12 15 28 19%18%11%11 8 4 1 3 6 3 4 IF%11 7 14 9 19 24|12 9 13 16 11 10 17 11 16 10 5 9 6 2 7 8 3 %5 IF %8 6 13 5 8 25|13 15 8 10 12 23 13 19 12 10 8 10 1 5 IF IF IF IF IF%12 6 9 7 10 26|11 6 10 9 10 18 21 13 19 11 11 7 6 IF IF IF IF IF IF IF 6 11 8 6 27| 8 9 8 7 10 8 21 24 14 18 5 9 3 5 2 IF %6 %2%10 4 %5 4 9 11 28|10 10 9 10 21 12 26 24 23 7 7 7 3 1 2 1 2 3 2 5 10 10 11 9 29|10 8 9 10 9 11 17 14 15 15 5 3 IF IF IF IF IF IF %8 2 1 5 9 8 30| 7 7 9 4 11 23 13 13 8 7 0 1 %2 IF 0 IF IF IF IF IF IF %7 11 8 31|16 11 4 12 7 17 19 19 18 7 6 8 6 3 4 4 %2 IF IF 4 2 6 12 8 ---+----------------------------------------------------------------------- Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 Echoes longer than 20 seconds Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 ---+----------------------------------------------------------------------- 01| 1 02| 03| 1 04| 2 05| 1 1 1 06| 07| 1 08| 09| 10| 1 11| 12| 1 1 13| 14| 1 15| 16| 1 17| 18| 1 19| 20| 21| 22| 23| 1 24| 2 25| 26| 1 27| 1 28| 1 29| 30| 2 31| ---+----------------------------------------------------------------------- Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 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 : Takashi Usui Location : Itabashi, Tokyo, Japan (139.72 E, 35.75 N) (1)28MHz observation Transmitter Location: Nagano, Toyoshina [JR0YAN] 28.208MHz 50W Antenna : 6mH Whip HF10FX Receiver : TS 690 Method : by using HROFFT software (by Mr.Kazuhiko Ohkawa) and manual count The signal from receiver is divided with two PC. Normal Condition Signal=70, Level=15 - the number of total echo - Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 ---+----------------------------------------------------------------------- 01| 2 2 8 9 %3%13 %6 CW CW CW CW CW CW CW CW CW CW CW %0 2 1 0 5 1 02| 4 1 6 1 6 8 8 CW CW CW CW CW CW CW CW CW CW CW %6 0 1 2 1 2 03| 5 2 3 4 3 3 %2 CW CW CW CW CW CW CW CW CW CW CW %0 1 2 1 3 2 04| 3 3 5%11 15%17 CW CW CW CW CW CW CW CW CW CW CW CW CW %3 %5 %1 %0 %2 05|%7%12 8 %9 5%13 %6 CW CW CW CW CW CW CW CW CW CW CW CW 1 CW IF %0 %1 06|%4 9 8%11%11%12 CW CW CW CW CW CW CW CW CW CW CW CW IF -- -- -- -- -- 07|-- -- --%10 %4 %6 %4 CW CW CW CW CW CW CW CW CW CW CW CW %1 %0 %1 %5 %5 08|%2%10 %0 %8 %8 %8 %7 CW CW CW CW CW CW CW CW CW CW CW CW 3 2 2 4 4 09|%4 %2 %7 5 %5%20 %9 CW CW CW CW CW CW CW CW CW CW CW CW %0 %3 %3 %4 %9 10|%9 %2 %8%10%12 %5 CW CW CW CW CW CW CW CW CW CW CW CW CW %1 %4 %6 %4 %1 11|%4%10%10 %6%12%13%14 CW CW CW CW CW CW CW CW CW CW CW CW %0 %3 %5 %0 %4 12|%6 %5 %6 %3%10 %5 IF CW CW CW CW CW CW CW CW CW CW CW CW CW %3 %6 %2 %6 13|%3 %8 10 %5 %4 %9 IF CW CW CW CW CW CW CW CW CW CW CW CW %0 2 2 6 %1 14|%7 %3 %8 %5 %9 %4%10 CW CW CW CW CW CW CW CW CW CW CW CW %0 2 2 2 3 15| 2 6 8 9 6 5 %7 CW CW CW CW CW CW CW CW CW CW CW CW %6 2 6 3 3 16| 1 4 3 7%10 7 %6 CW CW CW CW CW CW CW CW CW CW CW CW 2 3 1 1 2 17| 4 4 6 1 10 1 6 %2 CW CW CW CW CW CW CW CW CW CW 0 %3 %2 0 %2 %3 18|%4 IF IF IF 9 %7 8 7 5 CW CW CW CW CW CW CW %0 3 %2 4 6 5 5 %6 19|%8 12 %8 %1%10 8 11 %8 CW CW CW CW CW CW CW CW CW CW 1 3 2 1 5 1 20| 3 5 %5 %7 %8 9%10 %7 CW CW CW CW CW CW CW CW CW %4 %2 3 2 2 0 2 21| 5 %5%11 6%10 2%12 CW %6 CW CW CW CW CW CW CW CW CW %3 2 2 4 3 1 22| 3 1 7 %4 %3%10 %9 CW CW%17 %8 CW CW CW CW CW CW CW CW %7 %4 %1 %9 4 23| 5 4 3 0 %3 %5 IF %9 CW CW CW CW CW CW CW CW %2 4 1 2 4 1 5 1 24| 3 %6 %1 5 3 2 6 %8 CW CW CW CW CW CW CW CW CW CW CW 1 1 6 1 2 25| 5 4 1 10 4 9 13 15 7 8 CW CW CW CW CW CW CW CW %0 3 3 1 2 4 26| 2 1 6 1 5 4 10 9%14 CW CW CW CW CW CW CW CW CW CW %2 3 5 0 4 27| 7 0 8 15 8 7 9 CW CW CW CW CW CW CW CW CW CW CW CW 3 2 2 2 6 28| 9 7 6 6 9 8 12 CW CW CW CW CW CW CW CW CW CW IF %2 1 IF %2 4 4 29| 0 1 5 7 7 7 4 CW CW CW CW CW CW CW CW CW CW CW CW %2 5 3 6 7 30| 1 5 6 7 5 7 8 CW CW CW CW CW CW CW CW CW CW CW CW CW 2 2 2 3 31| 2 1 7 2 4 4 %8 CW CW CW CW CW CW CW CW CW CW CW %0 3 4 1 1 4 ---+----------------------------------------------------------------------- Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 Echoes longer than 20 seconds Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 ---+----------------------------------------------------------------------- 01| 02| 03| 04| 05| 06| 07| 08| 09| 10| 11| 1 12| 13| 14| 15| 16| 17| 18| 19| 20| 21| 22| 23| 24| 25| 26| 27| 28| 29| 2 30| 31| ---+----------------------------------------------------------------------- Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 (2)53MHz observation Transmitter Location:Fukui-NCT at Sabae, Japan (136.2 E, 25.9 N) Ham beacon (JA9YDB) for RMO (50W CW, 53.7500 MHz) by JA9BOH Kimio Maegawa. No modulation except for identification Antenna : Whip Receiver : TS 670 Method : by using HROFFT software (by Mr.Kazuhiko Ohkawa) and manual count The signal from receiver is divided with two PC. Normal Condition Signal=70, Level=15 - the number of total echo - Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 ---+----------------------------------------------------------------------- 01| 1 3 4 4 7 %6 %8 %6 6 8 9 3 4 6 IF %2 %2 0 3 5 3 6 2 4 02| 2 6 5 2 5 3 3 4 6 5 5 4 %4 %0 IF 2 1 5 1 4 1 2 2 6 03| 3 0 3 5 5 6 8 6 5 7 6 6 5 4 1 0 2 0 0 1 0 1 1 4 04| 2 4 5 9 7 6 5 %1 IF 7 %3 %2 IF IF IF %1 1 2 4 1 2 6 7 1 05| 2 3 4 6 5 3 3 6 10 10 4 8 %4 IF IF 3 %1 IF IF IF %1 2 3 5 06| 2 4 3 4 4 2 5 7 11 5 %5 5 7 5 5 2 1 1 -- -- -- -- -- -- 07|-- -- -- %8 9 9 4 7 5 8 5 6 5 2 %2 %1 %4 6 6 4 2 2 7 3 08| 1 5 5 2 1 0 4 6 5 5 4 7 3 6 2 3 1 0 3 3 3 4 3 4 09| 1 7 2 2 6 7 6 3 6 %7 4 IF %3 3 3 1 4 1 %0 5 1 3 3 6 10| 7 8 4 5 7 5 5 4 %5 3 %9 IF %5 6 3 1 1 1 1 %1 2 3 4 2 11| 1 4 6 4 4 2 %7 8 %6 6 4 IF %8 3 2 0 1 4 %0 %1 3 2 3 3 12| 2 0 4 4 5 4 4 7 6 6 3 3 6 4 2 %4 %2 3 2 1 2 2 5 4 13| 2 1 7 6 1 3 %4%13 4 6 %2 4 2 4 2 1 2 1 2 1 0 3 5 5 14| 7 8 4 6 5 4 8 10 %8 5 7 2 3 0 %2 CW %0 1 1 1 1 3 2 6 15| 1 1 6 4 5 4 6 9 9 6 7 4 2 1 3 1 %2 3 4 4 3 4 1 1 16| 3 2 1 2 7 1 8 8 8 6 5 4 1 1 %2 %4 1 1 1 2 1 1 4 4 17| 2 2 2 4 7 8 6 3 6 3 6 %4 4 5 6 4 2 1 3 2 1 2 6 0 18| 2 4 2 3 8 6 2 3 4 7 6 6 2 2 2 1 1 1 1 1 4 1 5 %6 19|IF IF IF IF %5 3 6 %5 IF IF %6 6 4 3 0 3 %0 2 2 %2 %1 3 2 4 20| 7 2 5 2 2 4 8 5 8 IF 2 6 6 2 3 0 0 3 %0 %4 IF %2 4 3 21| 3 4 3 4 6 6 8 5 %1 5%10 IF 8 1 0 1 %2 5 4 0 4 1 6 3 22| 6 6 4 6 2 4 9 7 8 10 8 3 6 3 3 %4 %2 IF 3 2 0 2 8 1 23| 2 8 6 3 4 2 5 16 10 %8 7 4 5 4 1 6 2 0 3 0 5 5 3 1 24| 3 1 6 2 3 6 5 %4 5 4 9 8 2 4 2 4 2 3 %0 0 2 5 5 1 25| 6 3 2 9 5 5 5 5 12 8 6 4 10 %2 IF IF%12 %0 4 0 1 2 4 3 26|10 4 4 6 6 8 3 6 6 8 6 6 6 IF IF IF IF IF %4 0 3 1 1 5 27| 4 2 5 2 3 4 6 8 4 5 5 1 3 5 3 2 3 2 2 2 0 3 1 1 28| 4 4 3 4 5 2 4 %7 3 3 %9 %1 IF IF %2 3 %0 %2 3 %0 IF IF 1 3 29| 0 5 4 5 3 6 3 9 6 4 5 4 1 5 2 2 3 5 0 3 2 5 3 3 30| 3 4 6 6 2 8 10 3 5%10 4 7 4 2 2 7 2 0 2 4 0 2 2 4 31| 4 1 3 4 1 3 7 11 5 7 5 %7 1 1 5 4 2 %3 %4 2 3 1 2 5 ---+----------------------------------------------------------------------- Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 Echoes longer than 20 seconds Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 ---+----------------------------------------------------------------------- 01| 02| 03| 1 04| 05| 06| 07| 08| 09| 10| 11| 12| 13| 14| 15| 16| 17| 18| 19| 20| 21| 22| 23| 1 24| 1 25| 26| 27| 28| 29| 1 30| 31| ---+----------------------------------------------------------------------- Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mar|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 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: Young Chiech Tsao (BM2EQB) Location: Long Tan Observatory Lon Tan, TauYan, Taiwan R.O.C. (121 14'37" E, 24 52'54" N by GPS) Frequency: 50.0169 MHz USB mode 3 kHz width. Antenna: Comet made 50 MHz Yagi HB 4 element (gain 10.3 dBi) Astronomical azimuth 225 deg (=NE), elevation 7 deg. Transmitter: MIYAZAKI University Japan, USB mode, 50 W (24 hours), Distance about 1125 km from Lon Tan. Receiver: ICOM R-75 all band receiver Sensitivity: 0.25 uV for 10 dB S/N for USB mode Observing method: the beacon 1000 Hz voice signal (by FFTDSP) is Received by a low frequency filter (1000 Hz) and fed into The D/A converter and computer in real time. Data sampling system: using an 8 bits A/D card to PC/AT and Qbasic program With 1/8 second sampling interval to store the> 1.0 s Reflections. LT 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 UT 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 --------------------------------------------------------------------------- March, 2003 1/ 11 10 06 04 Es 03 03 02 05 04 04 03 03 02 04 03 05 05 08 06 06 10 06 08 2/ 06 04 03 04 05 06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 7/ -- -- -- -- -- -- -- -- 07 05 07 05 08 07 06 06 04 05 07 04 06 08 05 08 8/ 08 07 06 04 05 06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 15/ -- -- -- -- -- -- -- -- -- -- 03 04 03 05 04 06 -- -- -- -- -- -- -- -- 22/ -- -- -- -- -- -- -- -- -- -- 03 03 04 04 05 04 08 10 07 07 10 07 Es 10 23/ 04 06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 29/ -- -- -- -- -- -- 04 04 05 In In In In 06 05 08 11 06 09 08 05 11 10 12 30/ 09 04 06 03 05 04 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Notes: "In=(local) artificial interference. "Es" = sporadic E layer mode of reflection. ?.Suspect peak for shower or Es *. Date and Time system is in accordance with UT system and the time difference is 8hour from Taiwan (LT=UT+8). ECHO STRENGTH LIST/ *LT=Local Time (UT=LT-8) DATE (LT) TIME (LT) STRENGTH (dBi) CONTINUED TIME (sec) ---------------------------------------------------------------------------- 0301 05h26m 20 0301 05h33m 20 0301 07h24m 20 ----------------------------------------------------------------------------- About the RMOJ... RMOJ reports the results of radio meteor observation in Japan, sent to myself. Every month, this bulletin is sent to Mr.Christian Steyaert, who publishes RMOB, which is a world-wide bulletin. In Japan, radio meteor observation has become the major meteor observation by means of development of low-price receiver and useful automatic data-taking software (HROFFT by Mr.K.Ohkawa). There are 70 observational sites in Japan, most of which utilize the radio source of 53.750MHz (50W) transmitted at Fukui-NCT(by Mr.K.Maegawa). FM-radio Observation has become difficult in Japan because of the recent increase of small-FM staions. I hope RMOJ will be helpful to radio observers, as well as all meteor observers. Hiroshi Ogawa 2003. 4.10