Re: Upcoming Dragon CRS-19 launch: elset and Falcon 9 trajectory oddities

From: Marco Langbroek via Seesat-l <seesat-l_at_satobs.org>
Date: Wed, 4 Dec 2019 11:14:48 +0100
Op 3-12-2019 om 13:39 schreef Marco Langbroek via Seesat-l:

> So it is clear that they are doing something with the Falcon 9 upper stage that
> includes a prolonged time on-orbit and, it seems, an inclination change by some
> 5 degrees.
> 
> The prolonged on-orbit time might be a coasting test with an eye on future
> missions that require coasting over several revolutions. The indicated
> inclination change might likewise be a test for a future mission requirement.


Indeed, at the CRS-19 pre-launch press conference, SpaceX Director of Dragon
Mission Management, Jessica Jensen, confirmed that after DRAGON orbit insertion,
they are doing a "thermal demonstration" with the Falcon 9 upper stage amounting
to a 6-hour coast phase:

https://youtu.be/727sk1VZcEY?t=1335

Nothing was said about the apparent ~5 degree orbital inclination change included.

- Marco

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

Station (b)log: http://sattrackcam.blogspot.com
Twitter: _at_Marco_Langbroek
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Received on Wed Dec 04 2019 - 04:15:35 UTC

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