Radio Meteor Observation in Japan No.006 May. 2002 ( http://homepage2.nifty.com/~baron/ ) ----------------------------------------------------------------------------- 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 - May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT ---+------------------------------------------------------------------------ 01| 0 0 1 1 1 1 2 0 0 1 1 2 2 1 2 1 0 0 0 1 0 IF 0 IF 02| 0 1 2 0 1 1 2 1 3 0 1 2 2 0 1 0 0 1 0 0 1 2 0 0 03| 2 0 2 1 0 2 6 3 0 1 2 0 0 0 1 1 0 0 IF 0 0 1 2 0 04| 1 0 1 1 4 4 1 1 0 0 3 1 0 3 0 0 0 0 1 0 0 1 1 1 05|IF 1 1 2 2 4 3 2 2 IF 1 2 3 0 1 2 1 0 0 1 0 IF 2 0 06|IF 1 1 2 1 1 1 1 3 5 0 0 3 3 0 1 0 1 0 IF 0 1 0 0 07| 0 1 5 2 1 0 3 2 7 1 1 2 0 0 0 1 0 1 IF 0 0 2 0 0 08| 1 IF 2 2 1 3 8 4 0 1 1 1 1 3 2 2 0 1 0 0 0 2 3 1 09| 3 0 1 7 3 2 3 3 2 0 3 3 0 0 0 0 2 3 2 0 1 3 2 0 10| 2 8 2 3 1 2 2 6 3 0 2 0 1 1 0 IF 1 1 1 2 0 0 0 1 11| 4 0 0 1 5 3 1 6 1 0 0 0 0 2 1 0 1 2 0 0 0 1 1 2 12| 2 0 2 0 4 3 2 0 IF 1 1 IF 1 0 1 1 0 1 IF 0 0 1 0 0 13| 0 0 1 0 3 2 2 1 3 1 0 2 0 1 1 0 0 2 0 0 1 0 0 3 14| 0 0 3 1 3 3 8 1 0 0 0 0 0 0 1 4 1 0 0 IF 2 0 2 2 15| 2 1 2 1 3 1 2 1 2 ES ES 2 0 1 1 0 IF ES ES 1 0 0 0 1 16| 0 1 0 3 1 1 4 1 0 0 1 2 0 1 IF IF 3 0 0 0 1 3 1 1 17|IF 3 2 3 1 1 3 3 1 2 0 0 0 2 1 IF IF IF 0 IF 0 2 0 2 18| 2 0 1 4 0 2 6 1 2 1 0 0 1 2 0 2 0 0 2 0 0 2 1 0 19| 0 1 IF 0 0 1 1 1 0 1 2 0 0 IF IF 3 2 3 0 2 0 0 1 1 20| 1 3 2 1 2 2 3 3 1 1 IF 0 1 1 4 0 2 0 1 0 0 0 0 1 21| 1 0 2 1 4 2 0 4 1 2 2 0 1 0 5 3 2 1 0 0 0 1 1 0 22| 0 1 3 2 3 0 3 3 2 1 0 0 1 1 2 0 IF 0 0 1 1 3 0 1 23| 0 1 0 1 1 3 1 0 1 1 1 9 2 0 IF IF 1 0 IF IF 0 1 0 0 24| 0 1 0 1 2 3 2 0 2 3 1 IF IF IF 4 IF 1 IF IF IF IF 2 1 0 25| 1 2 2 3 2 3 2 IF 6 0 1 0 IF 1 5 0 1 IF 0 1 0 0 1 6 26| 2 0 1 0 4 1 0 0 5 2 0 1 1 1 1 0 IF 0 IF IF 1 0 0 0 27| 1 1 0 2 1 12 1 5 1 1 0 0 0 1 0 0 0 0 0 0 0 0 1 0 28| 0 0 2 1 0 1 1 0 0 0 0 1 0 1 0 0 2 0 0 2 1 1 2 1 29| 1 0 2 3 1 0 3 0 0 0 3 1 0 0 0 1 1 3 0 0 IF 0 1 1 30| 1 0 1 1 1 3 1 6 0 0 0 0 0 0 0 4 2 1 0 0 0 1 3 0 31| 1 0 0 1 5 2 1 1 3 1 1 0 IF IF 2 2 3 0 1 1 1 0 2 0 ---+------------------------------------------------------------------------ May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT - the number of Long echo (more than 20sec)- May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT ---+------------------------------------------------------------------------ 01| 02| 03| 04| 05| 06| 1 07| 1 08| 09| 1 1 10| 11| 1 12| 13| 14| 15| 1 16| 17| 18| 19| 20| 21| 22| 23| 1 24| 25| 26| 1 27| 28| 29| 30| 31| ---+------------------------------------------------------------------------ May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT note: --: lost counts because of high noise level or machine failure. @: Hourly rate estimated by effective observation time less than 60 min. IF: Contamination due to radio noise or interference NS: Some noise 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) - the number of total echo - May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT ---+------------------------------------------------------------------------ 01|10 16 14 16 17 34 32 28 32 20 13 11@10 NS NS NS @7 10 @3 9 7 6 13 9 02| 9 18 11 24 28 29 30 33@22 NS@16 NS NS@18@14@14 NS NS NS NS 7 6 14 12 03|11 11 10 26 34 29 NS NS@23@19@20@17@17 13@13@11 9 3 @5 @3 7 9 9 16 04| 9 14 14 11 22 19 29 27@25@16 24 18 16 12 18 9 14 6 4 8 14 9 11 19 05@17 25 12 19 20 34 38 35 25 24 17@18 NS@12 13 @6 5 3 6 4 12 9 8 14 06|12 19@14 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS @6 8 12 16 22 07|20 28 13 20 29 21 32 30 21@29 NS@15 13 23 14 10 10 5 3 14 10 15 10 14 08|18 14 22 27 23 26 50 35 25 22 15 12 NS NS NS NS NS NS NS NS NS NS NS NS 09@20 13 15 21 34 30 26 20 23@20 NS NS NS NS NS NS NS@11 6 3 9 13 13 10 10|13 8 12 11 24 38 31 39 23 21 34 16 21 13 19 19 9 6 9@12@12 15 14 26 11@20@20 22 22 26 36 34@37@31 25@23@19 NS NS NS NS NS NS @5 7 11 13 11 19 12|19 18 16 32 23 34 21 28@19@29@16@14 NS NS@16 10 9 NS @5 7 9 19 13 10 13|18 11 16 14 29 21 31 28 21@12 NS NS NS NS NS NS NS NS 6 5 7 10 16 11 14| 9 16 14 8 24 21@29 20@22 NS NS NS NS NS NS NS NS @6 5 6 8 11 11 16 15|10 14 9 9 11 27 27 33 20 25@16@20@18 22 17 17 6 10 ES ES 16 23 16 24 16|13 28 21 19 23 30 23 20@29@19 NS@12 NS NS NS@14 7 6 8 8 10 14 18 8 17| 7 23 16 10 20 23 28 29 25 13 7 20 13 9 18@15@10 6 6 @8 10 11 14 12 18|15 11 18 17 17 18 28 29 21@21 NS@13@15@14 @9 @5 7 @7 @5@11 9 13 19 22 19|16 20 15 17 19 36 34 28 22 24 17 16 13 16 12 12 @7 4 9 8 8 11 16 18 20|22 20 19 20 23 24 32@18@20 NS@22@13 NS NS NS NS NS NS @9 5 8 11 19 22 21|11 13 17 14 24 29 19 25@15 NS NS NS NS NS NS NS NS NS NS@19 8 17 15 21 22|19 24 15 14 24 14 22 21 16 14 NS NS NS NS NS 9 6 10 2 8 6 7 12 11 23|12 16 18 13 17 24 21 21 27@19 11@16@12 NS NS NS IF @6 @8 @5 @8 9 16 16 24|16 14 16 24@18@19 26@23 NS NS NS NS NS NS NS NS NS NS NS NS NS @9 20 16 25|20 20 16 14 27 20 23@17@28 NS NS NS NS NS NS NS NS NS NS NS NS 14 20 23 26|15 11 15 13 18 22 22 29@19 NS NS NS NS NS NS NS NS NS NS @6 8 15 8 12 27|19 21 18 23 26 20 31 19@23@25 NS NS NS NS NS NS @8 5 4 5 10@11 18 17 28|14 20 23 20 28 32 25 17@33 NS NS NS NS NS NS NS NS NS NS@10 12 17 17 15 29|14@17 16 18 24 30 32 27 34 NS NS NS NS NS NS NS NS NS @3 @9 13 11 9 11 30| 9 16 16 17 16 28 24 19 NS NS NS NS NS NS NS NS NS @2 IF IF IF IF IF IF 31@18 18 15 17 23 20@26 NS NS NS NS NS NS NS NS NS NS NS NS NS NS 7 11 18 ---+------------------------------------------------------------------------ May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT - the number of Long echo (more than 20sec)- May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT ---+------------------------------------------------------------------------ 01| 1 02| 03| 1 04| 1 1 2 1 1 1 05| 1 06| 07| 1 1 08| 1 2 2 1 1 09| 1 1 1 10| 1 1 1 11| 1 1 12| 2 1 13| 1 2 14| 1 1 15| 1 1 1 16| 17| 1 18| 1 1 19| 1 20| 1 21| 22| 23| 1 24| 1 1 25| 1 26| 27| 28| 1 1 29| 30| 1 31| ---+------------------------------------------------------------------------ May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT note: --: lost counts because of high noise level or machine failure. @: Hourly rate estimated by effective observation time less than 60 min. IF: Contamination due to radio noise or interference NS: Some noise Es: Contamination due to sporadic E opening JST =UT + 9 h --------------------------------------------------------------------------- Observer: Toshiaki Tsuruoka Location: Misaki, Chiba, Japan (140.4deg E, 35.3deg 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 Antenna: 2ele Yagi-antenna Receiver:ICOM IC-729 Observing method: HROFFT software(by K.Okawa) Counting method: manual count ---- Every one hour data ---- May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT ---+----------------------------------------------------------------------- 13|87 67 71 73 85 78110 NS 60 76 48 45 35 39 37 29 20 20 16 22 39 50 85 80 14|78 76@52 58 88 92 96 69123 69 59 48 46 33 30 17 26 ES ES 25 41 35 40 57 15|65 61 66 69 63 77 82 80 69 ES ES NS 22 29 24 25 8 ES ES ES@36 45 65 49 ---+----------------------------------------------------------------------- May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT note: --: lost counts because of high noise level or machine failure. @: Hourly rate estimated by effective observation time less than 60 min. IF: Contamination due to radio noise or interference NS: Some noise Es: Contamination due to sporadic E opening JST =UT + 9 h --------------------------------------------------------------------------- Observer: Hiroshi Ogawa Location: Misato Observatory(Wakayama, JAPAN) 135.40deg E, 34.13deg 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 Antenna: original Diepole(height:1m, to level, element:west-east) Receiver:AOR AR8000 USB-Mode Observing method: HROFFT software(by K.Okawa) Counting method: manual count ---- Every one hour data ---- May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT ---+----------------------------------------------------------------------- 12|17 18 26 17 23 19 24 16 18 12 17@10 11 14 7 8 9 5 6 9 7 5 12 14 13|16 14 27 13 19 27 21 10 23 14 9 10 8 12 7 17 4 7 5 6 6 11 16 14 14|22 15 15 18 27 21 20 16 22 11 15 11 5 8 13 9 5 10@12 9 11 13 9 16 15|18 23 14 21 25 23 16 16 15@11 IF 8 18 11 13 7 4 @5 Es @7 5 9 12 13 16|16 13 15 22 17 28 27 22 23 17 13 9 9 14 10 7 7 1 3 4 11 6 15 11 ---+----------------------------------------------------------------------- May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT note: --: lost counts because of high noise level or machine failure. @: Hourly rate estimated by effective observation time less than 60 min. IF: Contamination due to radio noise or interference NS: Some noise Es: Contamination due to sporadic E opening JST =UT + 9 h --------------------------------------------------------------------------- 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 ---- Every one hour data ---- May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT ---+----------------------------------------------------------------------- 01|12 16 11 15 21 10 17 17 15 17 16@15 17 9@12 -- -- @5 @3 4 @3 8 4 4 02| 8 11 15 7 10 16 13 13 13@14 NS NS NS NS NS NS NS NS NS NS 9 6 6 9 03| 7 12 14 11 10 13 12 18 13@14 NS NS NS -- -- -- NS NS NS @8 2 8 9 6 04@18 11 7 7 15 24 19@19 19@12 -- -- -- -- -- -- -- -- -- -- -- -- @8 8 05|10 10 11 8 19 21 20 28 17 11@10 NS NS NS NS NS 6 4 NS NS NS NS NS NS 06|NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS @0 @0 2 1 07| 2 4 @9 @6 @8 9 11 @9@19 19 19@22 26 17 7 10 @8 2 @2 4 7 6 6 10 08|13 11 14 18 27 19 31 17 26 27 25 21 17 12 15 @8 IF IF 6 5 @6 @5 7 6 09|13 18 7 15 25 17 11 24 25 11 19 17 20 15 15 3 8 3 4 0 4 @5 9 7 10| 7 15 19 26 11 22 28 44 19 26 26 20 27 17 13 15 5 6 2 @7 6 5 3 10 11| 9 6 6 16 16 15 19 22 13 15 12 18 14@19 10 12 10 7 3 @0 4 4 7 7 12| 4 7 15 25 22 25 17 16 14 20 23 10 14 8 13 6 @4 2 5 5 3 6 1 15 13|10 7 14 9 14 16 23 16 25 22 19 18 21 16 10 11 4 6 2 @2 5 5 10 12 14|13 11 14 13 27 25 23 23 9 17 18 18 14 8 6 @8 @6 IF IF @5 7 4 @8 12 15|11 10 13 11 13 18 19@25 NS IF IF@17@11 NS NS @0 2 IF IF IF @1 @7 4 6 16|10 12 14 17 18 21 17 20 9 19@17@18 21 11 @8@12 5 6 IF 4 2 @6 4 9 17| 8 16 18 15 11 19 17 19 19 12 15@12 14 10 0@10 @5 4 3 3 3 3 11 9 18| 9 15 14 11 15 10 11 11 12 20 13 13 15 13 8 @6 8 5 3 @1 6 @8 8 8 19| 7 12 9 11 17 17 19@17 NS@14 IF @6 IF IF @8 4 7 3 7 5 6 3 12 14 20|13 11 12 16 15 22 18 15 11 17 10 8 @9 16 12 @6 IF @5 @3 3 2 1 3 13 21|15 9 15 11 15 19 15 18 8@11 14 NS NS NS NS @8 11 4 7 2 6 5 9 14 22|10 9 15 16 29 16 26 21@23 NS NS NS NS NS NS NS NS @0 @3 @4 7 10 7 NS 23| 9 11 16 15 13 13 14 11@30 @8 13 NS IF@14@13 2 7 IF IF IF 1 5 5 15 24|12 11 6 10 15 15 15@12 NS @8@17 9@17 NS NS NS NS NS IF @2 4@17 @9 9 25| 6 10 7 14@10 18 13 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 26|@4 NS @4 16 14 14@14 NS NS NS NS NS NS NS NS @6 2 2 @2 @4 2 3 @7@11 27| 6 15 14 12 18 15 16 9 14 8 8 14 8 @7 12 4 @5 @4 @2 3 1 7 10 11 28|11 10 10 10 12 17 19 11 @6 NS NS NS NS NS NS @2 NS NS @1 7 8 6 14 7 29|15 15 17 14 19 18 14 12 14 12 9 NS NS NS NS@14 @8 9 3 @2 4 8 8 4 30|10 9 15 9 17 20 12 18 12 9 17 6 NS NS -- -- NS NS NS NS NS @3 3 @6 31|@4 @1 @0 2 @3 @4 @4 NS NS NS NS IF -- IF IF IF @7 @0 @2 NS NS NS 3 7 ---+----------------------------------------------------------------------- May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT - the number of Long echo (more than 20sec)- May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT ---+----------------------------------------------------------------------- 01| 1 02| 03| 1 04| 1 2 1 1 1 05| 1 2 06| 07| 1 1 08| 1 2 1 1 09| 1 1 1 1 1 2 10| 1 1 11| 1 1 12| 13| 1 1 14| 1 15| 1 1 16| 1 1 1 17| 1 18| 19| 1 20| 21| 1 22| 1 23| 24| 25| 26| 1 27| 1 1 28| 29| 30| 1 31| ---+----------------------------------------------------------------------- May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT note: --: lost counts because of high noise level or machine failure. @: Hourly rate estimated by effective observation time less than 60 min. IF: Contamination due to radio noise or interference NS: Some noise 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 ---- Every one hour data ---- May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT ---+----------------------------------------------------------------------- 19|14 7 5 10 17 22 18 20 11 13 7 6 9 27 20@31 11 9 8 9 11 6 21 22 20|10 22 18 24 27 35 33 17@25 15@14 18 25 42 35 22 17 11 18 8 15 17 11 17 21@14 29 12 19 25 25 29 21 23 12 IF 14 27 27 24 19 11 9 4 8 4 13 15 15 22@10 14 15 20 31 31 33 22 19@11 13 20 68 38 24 12 5 6 7@11 12@12 15 7 23@14 14 10 21 22 31 26@14@17@14@16 22 25 26 34 20@18@14 13 11 11 11 9 14 24|@4 6 9 17 19 27 27 23 22 19@23 22 20 25 26 25 9 9 9 @2 11 12 8 16 25@10 10 20 20 33 31 11 16 20 18 15 11@40 30@19@28 IF IF IF @8 IF@12@11 27 ---+----------------------------------------------------------------------- May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT - the number of Long echo (more than 20sec)- May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT ---+----------------------------------------------------------------------- 19| 2 2 1 1 20| 2 1 1 1 1 21| 1 1 1 22| 2 1 1 1 23| 1 24| 1 1 25| 1 1 2 1 ---+----------------------------------------------------------------------- May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST May|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14UT note: --: lost counts because of high noise level or machine failure. @: Hourly rate estimated by effective observation time less than 60 min. IF: Contamination due to radio noise or interference NS: Some noise Es: Contamination due to sporadic E opening JST =UT + 9 h --------------------------------------------------------------------------- About the RMOJ... RMOJ reports the results of radio meteor observation in Japan, sent to myself. Every month, this bulletin is sent to Mr.Christian Steyaert, who publishes RMOB, which is a world-wide bulletin. In Japan, radio meteor observation has become the major meteor observation by means of development of low-price receiver and useful automatic data-taking software (HROFFT by Mr.K.Ohkawa). There are 70 observational sites in Japan, most of which utilize the radio source of 53.750MHz (50W) transmitted at Fukui-NCT(by Mr.K.Maegawa). FM-radio Observation has become difficult in Japan because of the recent increase of small-FM staions. I hope RMOJ will be helpful to radio observers, as well as all meteor observers. Hiroshi Ogawa ( ogawa@nms.gr.jp ) 2002.06.12