Updated periodicity result for the Chang'e 3 upper stage (2013-070B) tumble

From: Marco Langbroek via Seesat-l <seesat-l_at_satobs.org>
Date: Tue, 15 Sep 2015 20:46:01 +0200
Hi all,

Using observations from Sep 11 and Sep 14, I have been able to narrow the fit to 
the brightness variation of 2013-070B, the CZ-3C upper stage from the Chang'e 3 
Lunar mission, and obtain a more accurate periodicity.

The curve is part of my blogpost here:


I find a periodicity of 423.01 +- 0.03 seconds, peak-to-peak.

A nice result, that would not have been possible without the kind help of Peter 
Starr (MPC Q65) and Krisztián Sárneczky (MPC 461).

- 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 Tue Sep 15 2015 - 13:47:08 UTC

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