[Neocp_artsats] A10WEWw = 2016-038C = Falcon-9 second stage

Bill Gray pluto at projectpluto.com
Fri Sep 8 21:29:14 EDT 2023

Hello all,

    This object was tracked for a while in May and June.  It was 
experiencing some drag at perigee,  which caused it to depart from where 
Space-Track thought it was and to end up on NEOCP several times :


    The drag continued and we lost track of the object after 15 June. 
However,  ATLAS has recovered it and (J95) and (Y01) have followed it up.


    The amount of drag was considerably less than I'd predicted.  I 
think this reflects the fact that I have a somewhat simple drag model 
which (among other things) doesn't account for seasonal variations in 
upper atmospheric density,  which are pretty considerable.

-- Bill

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