[amsat-bb] ARRISSat-1 (37772) decay date update for 2011 Dec 14

[DeYoung James]

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