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

[Bill Gray]

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 :

https://www.projectpluto.com/pluto/mpecs/16038c.htm

    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.

https://www.projectpluto.com/pluto/mpecs/16038c_2.htm

    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