Elset (Re: Obs Ariane EPC r/b (Arianespace VA240 launch, 12 December))

From: Marco Langbroek via Seesat-l <seesat-l_at_satobs.org>
Date: Thu, 14 Dec 2017 23:50:21 +0100
Op 13-12-2017 om 23:54 schreef Marco Langbroek via Seesat-l:

> Very approximate orbit fitting these 3 points and launch at Kourou:
> 
> Ariane EPC r/b                                          178 x 3441 km
> 1 70002U 17999C   17346.77508102 0.00000000  00000-0  00000+0 0    07
> 2 70002  54.9562 304.8108 1992471   0.4569 346.2716 11.71777301    07


A source within Arianespace provided the info that the EPC should be in a 42 x
3340 km, 55.35 deg inclined orbit after separation and depressurization.

The following elset suits those constraints *and* fits the observations

Ariane EPC r/b                                           42 x 3340 km
1 70004U 17999A   17346.77516204 0.00000000  00000-0  00000+0 0    07
2 70004  55.3500 305.8931 2043588 353.6368 349.8559 11.97683367    04

rms 0.06

- 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 Thu Dec 14 2017 - 16:51:13 UTC

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