Nice flashing CZ-2C rocket 2017-075D

From: Alain Figer via Seesat-l <seesat-l_at_satobs.org>
Date: Mon, 11 Dec 2017 19:30:14 +0100
CZ-2C chinese rocket 2017-075D was recently launched on 24 November 2017.
I watched it photographically on 4 consecutive nights (3 to 6 DEC 2017).
Rotation period is increasing by about 1% from a night to another :

3.7 DEC  Rotation period: T= 2.604s +/- 0.005s.
4.7 DEC  Rotation period: T= 2.621s +/- 0.007s.
5.7 DEC  Rotation period: T= 2.640s +/- 0.010s.
6.7 DEC  Rotation period: T= 2.670s +/- 0.008s


As an example, see an image at :
https://www.flickr.com/photos/25296169_at_N07/25118303568/

and more info at :
https://www.flickr.com/groups/satellites_artificiels/discuss/72157675909879953/72157689421790411

Best wishes

Alain Figer
Southern Alps 44.57° N ; 6.68° E ; 1850m a.s.l.
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Received on Mon Dec 11 2017 - 12:31:02 UTC

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