Re: NROL-76 launch

From: Marco Langbroek via Seesat-l <seesat-l_at_satobs.org>
Date: Mon, 1 May 2017 12:48:57 +0200
Ted wrote:
>> I inadvertently re-issued the Apr 30 version of the 50 deg, 300 km
>> elements. Below are the May 01 elements:
>>
>> 1 74200U          17121.46250000  .00000000  00000-0  00000-0 0    05
>> 2 74200  50.0000 279.9856 0005000 177.0000 220.5000 15.90000000    00
>>
>> Ted Molczan

Jon wrote:
> There are elements for a 850 circular orbit, assuming launch at 11:00 UTC:
> 
> 
> NROL-71 scenario #1                                      858 X 858 km
> 1 70099U 17500B   17121.66667824 0.00000000  00000-0  00000+0 0    09
> 2 70099  50.0000 278.0862 0000010  73.6430 274.4981 14.10600000    06



Here is my guesstimate for a 51 degree inclined, 355 x 375 km USA 193-like
orbit, launch at 11:15 UT:

NROL-76 guesstimate
1 77779U 17120A   17121.46875000 0.00000000  00000-0  00000+0 0    00
2 77779  51.0000 283.8996 0014830  42.0000 323.0000 15.67869444    02

As can be seen from the wildly varying guesses by various analysts, anything is
possible.

- Marco


-----
Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.
e-mail: sattrackcam_at_langbroek.org

Cospar 4353 (Leiden):     52.15412 N, 4.49081 E (WGS84), +0 m ASL
Cospar 4355 (Cronesteyn): 52.13878 N, 4.49937 E (WGS84), -2 m ASL
Station (b)log: http://sattrackcam.blogspot.com
Twitter: _at_Marco_Langbroek
-----
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Received on Mon May 01 2017 - 05:50:30 UTC

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