ARRISSat-1 (37772) decay date update for 2011 Dec 14
Greetings, It is time for another decay date prediction update. As the satellite has gotten lower the atmospheric drag has increased significantly. This prediction update uses solar data through 2011 Dec. 14. The fit only includes orbital height data between Dec. 9 and Dec. 14. The decay date now indicated is 2011 Dec. 31 with a rule-of-thumb error estimate of about +/- 3 days giving a decay date ranging between 2011 Dec 28 to 2012 Jan 3. Jim, N8OQ
Jim,
Thanks for the update. A good opportunity for a shameless plug for those who have been sending the ARISSat-1 team telemetry to keep it coming. You may well be the one to capture and send the last data!
73s,
Alan WA4SCA
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of DeYoung James Sent: Wednesday, December 14, 2011 3:04 PM To: amsat-bb Subject: [amsat-bb] ARRISSat-1 (37772) decay date update for 2011 Dec 14
Greetings, It is time for another decay date prediction update. As the satellite has gotten lower the atmospheric drag has increased significantly. This prediction update uses solar data through 2011 Dec. 14. The fit only includes orbital height data between Dec. 9 and Dec. 14. The decay date now indicated is 2011 Dec. 31 with a rule-of-thumb error estimate of about +/- 3 days giving a decay date ranging between 2011 Dec 28 to 2012 Jan 3. Jim, N8OQ _______________________________________________ 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 (2)
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Alan P. Biddle -
DeYoung James