January 2012 - AMSAT-BB - mailman.amsat.org

Re: ARISSat-1 heard
by Vu Trong Thu 04 Jan '12

04 Jan '12

Looks like that the satellite reentered at 0602z today and JA0CAW caught the last signal http://ja0caw-je0mzi.mo-blog.jp/syumi/2012/01/arissat1_950f.html It's sad to see it went away :( -----Original Message----- From: Vu Trong Thu [mailto:[email protected]] Sent: Wednesday, January 04, 2012 10:01 AM To: 'amsat-bb(a)amsat.org' Subject: ARISSat-1 heard The bird is still operating up to 0120z today (Jan 4), however its orbit must has deviated much from the latest TLE on AMSAT website (just one day old?). I suddenly heard its CW beacon while it's still 10 degree under the horizon according to Orbitron's calculation. It was quite a challenge to track the satellite however signal was good, I could decode some telemetry, got a SSTV image and the historical conversation between Korolev and Gagarin :) 73, Thu XV9AA

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ARRISAT-1 re-entry?
by John Heath 04 Jan '12

04 Jan '12

Hi, Nothing heard on the 10:10 Z pass over the south of England. I was monitoring from 5 minutes before predicted AOS to take into account the rapid changes in the keps. 73 John G7HIA

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Arissat-1 reentry?
by David 04 Jan '12

04 Jan '12

Hello everybody: This is David EA4SG. Just a moment ago at 16:54 UTC while the Arissat-1 was over the vertical of Madrid, I was listening to the SAT and it stopped/interrumped suddenly its transmissions while it was still in a theorical "sunny or iluminated area". Not sure if it was the final re-entry but It could be. So I decided to leave this info here. The last sent voice message sent was the italian one and at the end of the secret word, it stopped. A moment before, I was able to record around 40 seconds of CW telemetry in 145.919 Khz but very poor signal/noise rate. Best 73s David EA4SG

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Need grid EL28 confirmed?
by Clayton Coleman W5PFG 03 Jan '12

03 Jan '12

Email me off-list if you need the grid EL28 confirmed. I am going to make a brief trip there later in the week and have several people who've expressed they need it confirmed. I will do at least one pass on an FM satellite. 73 Clayton W5PFG

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ARISSat-1 heard
by Vu Trong Thu 03 Jan '12

03 Jan '12

The bird is still operating up to 0120z today (Jan 4), however its orbit must has deviated much from the latest TLE on AMSAT website (just one day old?). I suddenly heard its CW beacon while it's still 10 degree under the horizon according to Orbitron's calculation. It was quite a challenge to track the satellite however signal was good, I could decode some telemetry, got a SSTV image and the historical conversation between Korolev and Gagarin :) 73, Thu XV9AA

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ARISSat-1 Voice #2
by Mineo Wakita 03 Jan '12

03 Jan '12

23:50-23:56 UTC, 3 Jan 2012, Ele 22 S-SE-E, 145.950MHz FM over Japan http://www.ne.jp/asahi/hamradio/je9pel/20104ar1.mp3 1:22-1:27 UTC, 4 Jan 2012, Ele 7 W-WN-N, 145.950MHz FM over Japan http://www.ne.jp/asahi/hamradio/je9pel/20104ar2.mp3 JE9PEL, Mineo Wakita

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Re: Rapid frequency change on ARISSat pass
by Ronald G. Parsons 03 Jan '12

03 Jan '12

Forgot to note the altitude give by the most recent keps was 175 km. Ron W5RKN From: Ronald G. Parsons Sent: Tuesday, January 03, 2012 6:27 PM To: AMSAT-BB Subject: Rapid frequency change on ARISSat pass On the nominal 0015 UTC pass over Texas, the ARISSat-1 telemetry seemed normal but at about 4-5 minutes before LOS, the frequency of the CW marker and the BPSK telemetry envelope started dropping very rapidly. I lost track how many times I had to adjust the Doppler-corrected frequency down by 100 Hz. Then suddenly, the telemetry signal stopped. Ron W5RKN

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Rapid frequency change on ARISSat pass
by Ronald G. Parsons 03 Jan '12

03 Jan '12

On the nominal 0015 UTC pass over Texas, the ARISSat-1 telemetry seemed normal but at about 4-5 minutes before LOS, the frequency of the CW marker and the BPSK telemetry envelope started dropping very rapidly. I lost track how many times I had to adjust the Doppler-corrected frequency down by 100 Hz. Then suddenly, the telemetry signal stopped. Ron W5RKN

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ARISSat-1 Voice
by Mineo Wakita 03 Jan '12

03 Jan '12

23:50-23:56UTC, 3 Jan 2012, Ele 22 S-SE-E, 145.950MHz FM over Japan http://www.ne.jp/asahi/hamradio/je9pel/20104ar1.mp3 JE9PEL, Mineo Wakita

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ARISSat-1
by Rsoifer＠aol.com 03 Jan '12

03 Jan '12

Nice clear FM voice and TLM on 145.950 over southern Arizona (DM41) at 0012-0016Z. 73 Ray W2Rs

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