SBIRS GEO-3 Orbit estimations

From: Jon . via Seesat-l <seesat-l_at_satobs.org>
Date: Thu, 19 Jan 2017 23:35:36 +0100
Hello all,


An Atlas 401 rocket is scheduled to launch the SBIRS-GEO 3 missile
detecting spacecraft the 2016-01-20 at 00:46 UTC. Liftoff will occur from
Space Launch Complex 41 at CCAFS. Launch window is 40 minutes long, beeing
closing at 01:26.

Using latest Ted Molczan's estimations in previous launches and adapting
orbit parameters for this mission the result is pretty similar than Kevin
Fetter's one, posted some hours ago. The elset is based assuming launch at
00:46.


SBIRS-GEO 3  4.0  2.0  0.0  4.0 d   10                 184 X 35774 km
1 70001U 17501A   17020.05209491 0.00000000  00000-0  00000+0 0    04
2 70001  23.2905 303.1725 7305565 177.9708  24.7883  2.28434334    07

Brightness is in mcants format.

​Webcast will be available here:

http://www.ulalaunch.com/webcast.aspx
https://www.youtube.com/watch?v=Vi2_yIFylxo


​I will not be able to update the above elset till 08:00 UTC if launch is
delayed.

Jon.


-- 
Jon, COSPAR 6242, 42.9453, -2.82839, 623m, Bitoriano, Basque Country.
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Received on Thu Jan 19 2017 - 16:36:17 UTC

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