● (No.797) LO-19 蝕の瞬間 (2013年6月10日) ------------------------------------- Subject: [amsat-bb] LUSAT-1 Heard From: Amsat Argentina, LU7AA Date: Sat, 8 Jun 2013 17:00:58 -0700 (PDT) LUSAT-1 (LO-19) CW Beacon on 437.125 KHz quit transmiting on Dec-2012 after 23 years of operation, only a very weak carrier from local osc could be copied. Recent reports state that LUSAT was again heard, today we received a regular signal compatible with LUSAT on 437.125 +/- Doppler in two passes. By the strong level and QRG of the signal it corresponds to LUSAT. Modulation is CW without a morse logic, just some dots, regular spaces and sometime a dash, no information is decoded, not always the same sequence or message. Waterfall at http://amsat.org.ar/lusatsdr.jpg Audio at http://amsat.org.ar/lusat2013.mp3 Any further heard or reports appreciated. Amsat Argentina, LU7AA http://www.amsat.org.ar/ http://www.lusat.com.ar/ ----------------------------------------------------------- Subject: LO-19 Signal Stop ? From: Mineo Wakita, JE9PEL/1 Date: Sat, 10 Jun 2013 01:46:00 +0900 (JST) LO-19, 00:56JST, 10 Jun 2013 に突然、信号がストップしました。 その後、LO-19信号が発信されているかどうか、各局確認願います。 次のmp3は、信号が突然ストップした瞬間の前後を録音しています。 http://www.ne.jp/asahi/hamradio/je9pel/30610l19.mp3 ------------------------------------------------------------------------ Subject: LO-19 Signal Stop #2 From: Mineo Wakita, JE9PEL/1 Date: Sat, 10 Jun 2013 19:46:00 +0900 (JST) Illum.exeソフト (by DK3WN) で確認すると、2013年6月10日00:56JST は、LO-19 が日本上空で蝕に入る、まさにその瞬間の時刻でした。LO-19 は、打ち上げから 23年が経過しニッカドバッテリの充電放電が 122,140回も繰り返されて、もはや 充電の機能は失われているので、日照時のみの動作になっているということです。 I was examined using the Illum Software(by DK3WN) for the period of Eclipse(Shadow) of LO-19. It was found that 15:56 UTC, 9 June 2013 was exactly the beginning of Eclipese over Japan. On 9 Jun 2013, > Hello Mineo, > > Looks like on 06/09/13 at 15:56 UTC LUSAT-1 (LO-19) over Japan, > LUSAT entered shadow, please confirm if possible. > > Also given your valuable information, LO-19 seems to be operating > only on solar panels due onboard nicad batteries after 23+ years > and 122,140 charge/discharge cycles are not keeping charge anymore. > > Much appreciate your neat and useful audio and waterfall capture. > > Best 73, > > Amsat-Argentina, LU7AA
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