Date: 28 May 2007 10:29 GMT From: "Zimmer Harro" Subject: RAFT Decay Prediction
The current forecast for # 29661 RAFT with the ELSETS 07147.183... - 07148.164... with SFX 065 and ap 005 shows with the special perturbation method the decay on May 30, 13:33 UTC +/- 06 hours descending over 43.64°N and 214.96°E.
Looks like we get one more shot...
Lets everyone that is interested to park their ground station pointing at AOS for RAFT and recording packets. This is a great opportunity to see the heat up of an AMSAT as it re-enters.
Do NOT bother with automatic tracking, since arrival will be much earlier than any keps you can get..
If you can APRS-IGate the packets then that is even better, sinec we can all see the telemetry then in real time.
Bob, WB4APR
Bob,
I'm seeing the data on the SAVE RAFT website - internal temperature is quickly rising - it is now just above 20 deg. C. I also notice that the solar current is dropping; I wonder if this is because of clouding of the epoxy holding the solar panels as they heat up, or meet with more oxygen ions as the descent continues.
Just saying...
David Goncalves W1EUJ
On 5/28/07, Bob Bruninga bruninga@usna.edu wrote:
Date: 28 May 2007 10:29 GMT From: "Zimmer Harro" Subject: RAFT Decay Prediction
The current forecast for # 29661 RAFT with the ELSETS 07147.183... - 07148.164... with SFX 065 and ap 005 shows with the special perturbation method the decay on May 30, 13:33 UTC +/- 06 hours descending over 43.64°N and 214.96°E.
Looks like we get one more shot...
Lets everyone that is interested to park their ground station pointing at AOS for RAFT and recording packets. This is a great opportunity to see the heat up of an AMSAT as it re-enters.
Do NOT bother with automatic tracking, since arrival will be much earlier than any keps you can get..
If you can APRS-IGate the packets then that is even better, sinec we can all see the telemetry then in real time.
Bob, WB4APR
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Hi all
Neither Nick K5QXJ nor I heard any sound coming from RAFT during tonight's pass around 22:00CDT. I had my antenna in a fixed position, pointing towards where RAFT was supposed to come from based on the latest (07148.59248876) keps that I had. I had my pre-amp on, the radio on 145.827MHz and the polarization of my 2m cross yagi set to what gave me the best signal in the past listening to RAFT. I believe that all was set correctly at my station, but with the squelch wide open, I heard no sound from RAFT.
73 de Dieter kx4y
At 23:31 5/28/2007 -0400, Bob Bruninga wrote:
Date: 28 May 2007 10:29 GMT From: "Zimmer Harro" Subject: RAFT Decay Prediction
The current forecast for # 29661 RAFT with the ELSETS 07147.183... - 07148.164... with SFX 065 and ap 005 shows with the special perturbation method the decay on May 30, 13:33 UTC +/- 06 hours descending over 43.64°N and 214.96°E.
Looks like we get one more shot...
Lets everyone that is interested to park their ground station pointing at AOS for RAFT and recording packets. This is a great opportunity to see the heat up of an AMSAT as it re-enters.
Do NOT bother with automatic tracking, since arrival will be much earlier than any keps you can get..
If you can APRS-IGate the packets then that is even better, sinec we can all see the telemetry then in real time.
Bob, WB4APR
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Nothing heard from RAFT in EM-66 either. I listened a good 15 minutes prior to the lastest keps, and 15 minutes after.
Randy - KI4LMR
________________________________
From: amsat-bb-bounces@amsat.org on behalf of Dieter Schliemann Sent: Tue 5/29/2007 10:18 PM To: Bob Bruninga ; amsat-bb@amsat.org Subject: [amsat-bb] 29 May 07 RAFT Eastern pass around 22:00 CDT
Hi all
Neither Nick K5QXJ nor I heard any sound coming from RAFT during tonight's pass around 22:00CDT. I had my antenna in a fixed position, pointing towards where RAFT was supposed to come from based on the latest (07148.59248876) keps that I had. I had my pre-amp on, the radio on 145.827MHz and the polarization of my 2m cross yagi set to what gave me the best signal in the past listening to RAFT. I believe that all was set correctly at my station, but with the squelch wide open, I heard no sound from RAFT.
73 de Dieter kx4y
At 23:31 5/28/2007 -0400, Bob Bruninga wrote:
Date: 28 May 2007 10:29 GMT From: "Zimmer Harro" Subject: RAFT Decay Prediction
The current forecast for # 29661 RAFT with the ELSETS 07147.183... - 07148.164... with SFX 065 and ap 005 shows with the special perturbation method the decay on May 30, 13:33 UTC +/- 06 hours descending over 43.64°N and 214.96°E.
Looks like we get one more shot...
Lets everyone that is interested to park their ground station pointing at AOS for RAFT and recording packets. This is a great opportunity to see the heat up of an AMSAT as it re-enters.
Do NOT bother with automatic tracking, since arrival will be much earlier than any keps you can get..
If you can APRS-IGate the packets then that is even better, sinec we can all see the telemetry then in real time.
Bob, WB4APR
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
_______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
participants (4)
-
Armour, Randy (ITS) -
Bob Bruninga -
David Goncalves -
Dieter Schliemann