LO-19

LO-19 Moment of Eclipse

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/


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Subject: [amsat-bb] LO-19 Signal Stop ?
From: Mineo Wakita, JE9PEL/1
Date: Sat, 10 Jun 2013 02:15:54 +0900 (JST)

The signal of the LO-19 was stopped suddenly at 15:56 UTC, 9 Jun 2013.
Please confirm whether the signal is sent later. The following MP3 files
is recording the moment before and after the signal has stopped suddenly.

http://www.ne.jp/asahi/hamradio/je9pel/30610l19.mp3

  


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Subject: [amsat-bb] Re^2: LO-19 Signal Stop
From: Mineo Wakita, JE9PEL/1
Date: Sat, 10 Jun 2013 19:08:56 +0900 (JST)

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