March 2002 Radio Meteor Observation in Japan No.003 Observer : Minoru Ehara Location : Sayama, Saitama, 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) 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@11 16 8 11 11 10 7 11 5 12 @8 6 3 3 5 1 2 4 2 5 4 8 10 02| 6 11 14 @8 11 5 9 10 15 9 12 9 9 NS NS NS NS NS NS NS NS @2 @5 IF 03|12 11 17 13 12 NS NS NS NS NS NS NS -- -- -- -- -- -- NS NS @6 6 6 6 04|11 10 10 12 6 11 7@12 NS NS NS -- -- -- -- -- -- -- -- NS NS 4 5 5 05|12 21 17 10 9 6 8 15 @6@20 12 10@11@11 NS NS -- NS NS NS @6 5 6 6 06| 9 9 10 18 11 8 16 23 15 15 @3 @7 15 8 9 @2 4 2 3 1 5 5 @0 9 07|10 9 17 11 9 12 13 10 NS NS -- -- -- -- -- -- -- -- -- -- -- NS NS NS 08|12 9 7 11 14 10 8@14 NS NS -- -- -- -- -- -- -- -- -- -- -- NS @6 6 09|13 7 14 5 7 11 14 13 NS -- -- -- -- -- -- -- -- @1 2 @3 @2 @3 @6 7 10|10 7 8 10 11 14 9 7 11 -- -- -- -- -- -- -- -- -- -- -- -- 5 10 IF 11|13 10 10 12 6 12 12 NS NS -- -- -- -- -- -- -- -- -- @3 0 2 5 4 9 12| 8 8 13 12 11 10 8 9 NS NS NS -- -- -- -- -- -- -- NS NS NS NS NS NS 13|NS NS NS NS NS NS NS NS NS -- -- -- -- -- -- -- -- -- -- @2 3 @6 8 5 14| 8 8 10 6 12 12 13 14@14 NS NS -- -- -- -- -- -- -- -- @2 @5 @4 6 14 15|10 9 17 17 11@10 5 6 7 17 11 10 12 5 11 8 3 @2 2 1 @0 NS NS@13 16| 7 5 9@11 12 13 12 6 13 @8@11 @8 @9 -- -- -- -- -- 3 5 @2 @0 NS NS 17|@7@11 18 8 9 6 7 9@14 NS 11 NS -- -- -- -- -- -- -- @6 NS NS NS NS 18|NS NS NS NS NS@14 16@12 NS -- -- -- -- -- -- -- -- -- -- -- NS NS NS NS 19|NS NS NS NS NS 6 10 NS NS -- -- -- -- -- -- -- -- NS @0 4 2 3 NS 5 20|@8 @8 10 6 NS NS NS -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5 6 9 21| 6 12 5 14 7 6 7 13@11 @6 NS -- -- -- -- -- -- -- @4 4 2 5 6 14 22| 5 11 15 7 7 @4 9 9 10 15 18 11 6 12 @2 @4 1 1 4 2 3 @4 IF 4 23| 3 10 10 5 11 9 9 4 7 12@17 -- -- -- -- -- -- -- -- -- -- NS NS NS 24|NS @2@14@16 NS NS NS NS -- -- -- -- -- -- -- -- -- -- -- -- -- -- @7 12 25@11@16 9 9 9 10 7 6@14 8 -- -- -- -- -- -- -- --@12 6 8 5 8 11 26| 9 11 12 23 12 14 12 10 10 15 18 17 18 8 11 5 7 5 4 5 3 7 7 8 27| 7 17 16 14 21 8 15 9 18 10 -- -- -- -- -- -- -- -- -- @2 5 5 @8 @6 28|@9 9 8 7 @7 10 9 NS -- -- -- -- -- -- -- -- -- -- -- -- @5 3 3 5 29|13 6 10 12 10 10 12 9 9 4 13 -- -- -- -- -- -- -- -- -- -- @3 12 3 30| 5 7 15 9 11 8 11 12 15@11 14 NS -- -- -- -- -- -- -- NS NS NS NS NS 31| 5 7 9 13 9 14 18 14 12 18 9 14 11 8 4 8 5 3 1 4 2 4 6 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| 1 1 02| 03| 04| 05| 06| 1 07| 1 08| 1 09| 10| 1 11| 2 12| 13| 14| 1 15| 16| 1 17| 18| 1 19| 20| 21| 22| 23| 1 24| 25| 26| 1 27| 28| 29| 30| 31| 1 ---+----------------------------------------------------------------------- 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 Notes: --: lost counts because of high noise level or machine failure. @: Hourly rate estimated by effective observation time less than 60 min. NS: unknown type of noise IF: Contamination due to radio noise or interference ES: Contamination due to sporadic E opening JST =UT + 9 h --------------------------------------------- Observer: Toshihide Miayake Location: Tamano, Okayama, Japan 1133d 53' 38" E, 34d 29' 31"N 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 Receiver: STANDARD VR-500 Observing method: HROFFT software (by K. Okawa) Counting method: manual count (using HROview software by M. Yamamoto) 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 23JST 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 UT ---+-------------------------------------------------------------------------- 01|13 17 12 12 8 23 14 21@14 16 12 15@20 @4 NS NS NS NS NS @2 11 12 8 8 02|14 7 16 11 11 13 7 22 8@17 15 8@18 NS NS IF IF IF IF IF IF IF IF IF 03|IF IF IF @5 15 10 9 18 12@17@18 NS NS NS NS NS NS NS NS NS NS @4 15 8 04| 8 7 11 11 12 20 17 24 19@17@14 NS NS NS NS NS NS NS NS NS @9 9 9 12 05| 6 8 10 10 15 12 18 24@17 19 20 13 22 11 7 11 13 @9 IF IF IF IF 9 13 06| 9 15 12 16 9 18 19 18 21 13 12 5 13 12@13 3 @4 NS NS@11 IF @5 13 @6 07|NS NS@13@16 NS NS NS NS NS IF IF IF IF IF NS NS NS IF IF IF IF IF IF IF 08|IF IF 15 9 11 13 15 17 16@12 NS NS NS NS NS NS NS NS NS @9 10 7 16 7 09| 8 7 20 15 15 12 23 23 22 21 NS NS NS NS NS NS NS NS NS@10 @5 8 12@13 10| 8 8 6 11 8 12 20 23@19 NS NS NS NS NS NS NS NS NS NS NS@15 NS IF IF 11|IF@12 13 13 14 11 16 16 18 NS NS NS NS NS NS NS NS NS NS NS 14 10 14 16 12@19 19 11 10 9 11 18 21@20 NS NS NS NS NS NS NS NS NS NS 5 15 IF IF @6 13| 7 11 16 15 8 11 11 19 17 NS NS NS NS NS NS NS NS NS NS @3 10 11 13 11 14|11 10 12 13 20 17 20 22 22@12 NS NS NS NS NS NS NS NS 5 10 8 14 9 13 15| 7 14 12 13 14 14 17 23 20 16 15 12@12 NS NS NS NS NS NS NS NS NS NS NS 16|16 18 16 13 11 16 17@13 9@16 14 NS NS NS NS NS NS NS NS@11@10 IF IF IF 17@11 @6 12 10 15 13 17 22 17 23 NS NS NS NS NS NS NS NS NS @8 NS IF IF IF 18|IF IF 12 15 13 16 14 30 20 NS NS NS NS@10 NS NS NS NS NS NS NS IF IF@12 19| 9 5 9 20 14 10 14 16@18 NS NS NS NS NS NS NS NS NS NS NS NS IF IF IF 20@14@17 NS@13@10 22 24 17 NS NS NS NS NS NS NS NS NS NS NS @7 6 6 IF IF 21|13 11 11 19 16 13 24 14 13@17@15 16@11 11 7@12 NS NS @6 NS IF IF IF IF 22|IF 16 11 15@16@13 NS NS NS@15@17@11 18 16 16 14 6 5 0 6 15@16 IF IF 23|@8@20 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS@21@12 IF IF 24@15@17@12 NS NS@18 21@13 NS NS NS NS NS NS NS NS NS NS NS NS NS 8 6 15 25|15 16 13 4 23 13 20 @8 NS NS NS NS NS NS NS NS NS NS NS NS 12 12@16@16 26| 9 17 18 18@12 NS NS NS NS@15 NS NS NS NS@17@16 @7 1 7 5 10 10 12 17 27@13@14 19 19 19 15 21 24 23 23 19@11 NS NS NS NS NS NS NS NS NS NS@15@20 28| 9 17 7 8 16 19 13 16@15 NS NS NS NS NS NS NS NS NS NS 8 11 12@11 IF 29|IF@10 8 13 14 17 12 12@16 19 13 14 13@10 NS NS @5 @8 @2 4 8 8 13 12 30|11 3 17 21 21 15 17 22 15@22 NS NS NS NS NS NS NS NS @4 7 4 12 7 12 31|12 16 15 10 16 20 16 24 14 17@15@17 12@20 NS NS NS 2 9 6@13 7 13 20 ---+-------------------------------------------------------------------------- Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST 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 UT 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 23JST 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 UT ---+-------------------------------------------------------------------------- 01| 1 02| 03| 04| 1 05| 1 1 06| 07| 08| 1 09| 10| 1 11| 12| 1 13| 1 14| 1 15| 1 1 16| 17| 18| 1 1 19| 20| 21| 22| 1 23| 24| 1 25| 1 26| 1 27| 1 1 28| 1 29| 30| 1 31| 1 ---+-------------------------------------------------------------------------- Mar|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST 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 UT Notes: --: lost counts because of high noise level or machine failure. @: Hourly rate estimated by effective observation time less than 60 min. NS: unknown type of 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 (39.7N, 140.1E) Frequency: 53.750 MHz Transmitter Location: Fukui-NCT at Sabae city (139.72 E, 35.75 N) HAM beacon (JA9YDB) for RMO (50 W CW, 53.7500 MHz) by JA9BOH Kimio Maegawa. No modulation except for identification Antenna : TS670 USB Receiver: Whip 6mH 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 ---+----------------------------------------------------------------------- 23| 0 3 1 3 2 3 @4 0 1 2 0 1 1 2 0 0 1 0 0 2 1 @3 IF @0 24| 1 1 1 2 2 1 5 1 2 4 2 3 1 4 0 1 0 3 1 1 0 2 1 1 25| 1 4 2 1 3 5 1 1 2 1 4 0 0 3 1 2 0 1 2 3 1 0 0 5 26| 0 0 3 1 2 3 1 3 1 3 1 1 0 3 1 0 0 2 1 1 0 1 0 2 27| 0 0 1 1 0 3 2 6 2 @0 3 @4 2 3 3 0 1 0 4 0 @1 1 1 0 28| 2 0 1 2 4 3 6 1 2 2 3 0 0 1 2 0 1 0 1 3 1 0 0 @0 29| 1 1 2 2 1 1 0 3 3 3 2 0 1 1 2 1 0 3 0 1 1 1 4 2 30| 0 1 1 1 2 @4 3 2 1 0 1 1 4 1 2 0 0 3 0 1 @1 0 0 1 31| 1 1 2 2 0 4 6 3 2 3 2 2 2 1 0 0 1 1 0 @0 4 1 0 1 ---+----------------------------------------------------------------------- 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 - the number of Long echo (more than 20sec)- 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 ---+----------------------------------------------------------------------- 23| 1 24| 25| 26| 27| 28| 29| 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 Notes: --: lost counts because of high noise level or machine failure. @: Hourly rate estimated by effective observation time less than 60 min. NS: unknown type of noise IF: Contamination due to radio noise or interference ES: Contamination due to sporadic E opening JST =UT + 9 h ----------------------------------------------------------------------------- About the RMOJ RMOJ reports the results of radio meteor observation in Japan, sent to myself. Every month, this bulletin is sent to Mr.Christian Steyaert, who publishes RMOB, which is a world-wide bulletin. In Japan, radio meteor observation has become the major meteor observation by means of development of low-price receiver and useful automatic data-taking software (HROFFT by Mr.K.Ohkawa). There are 70 observational sites in Japan, most of which utilize the radio source of 53.750MHz (50W) transmitted at Fukui-NCT(by Mr.K.Maegawa). FM-radio Observation has become difficult in Japan because of the recent increase of small-FM staions. I hope RMOJ will be helpful to radio observers, as well as all meteor observers. March 2002 Hiroshi Ogawa 2002.05.21