SATOBS ML (remote), 26 June 2015: Chang'e 3 r/b (2013-070B)

From: Marco Langbroek via Seesat-l <seesat-l_at_satobs.org>
Date: Sun, 28 Jun 2015 20:11:44 +0200
39459 13 070B   9331 G 20150626172526000 17 75 2241340-074137 56 I+172 10
39459 13 070B   9331 G 20150626172716000 17 75 2241346-074178 56 I+167 10
39459 13 070B   9331 G 20150626172907000 17 75 2241350-074212 56 I+159 10
39459 13 070B   9331 G 20150626173059000 17 75 2241355-074246 56 I+179 10
39459 13 070B   9331 G 20150626174616000 17 75 2241394-074541 56 I+178 10
39459 13 070B   9331 G 20150626174810000 17 75 2241399-074581 56 I+167 10
39459 13 070B   9331 G 20150626175002000 17 75 2241403-074612 56 I+158 10
39459 13 070B   9331 G 20150626175153000 17 75 2241408-074651 56 I+177 10

----------------------------------------------------------------------
0.51-meter F/6.3 Dall-Kirkham + CCD + Astrometrica + UCAC4
Warrumbungle Obs., NSW, Australia   31.27517 S, 149.19453 E, 552 m ASL
What these numbers mean: http://www.satobs.org/position/IODformat.html
----------------------------------------------------------------------

After imaging the Chang'e 2 r/b (2010-050B) in May, I now also imaged the
Chang'e 3 r/b (2013-070B) at translunar distance.

Images were made using the 0.51-m telescope of MPC Q65 Warrumbungle (Cospar
9331) in Australia. The r/b was at a distance of approximately 405 000 km at the
time of imaging.

Unlike the Chang'e 2 r/b, which is more or less steady in brightness, the
Chang'e 3 r/b is clearly tumbling, with a clear brightness variation of 2
magnitudes at least, and a period of either 10.5 or 21 minutes. The rise of
brightness is less steep than the very sudden drop in brightness after the peak.

I will post images on my blog later.

Same data as above in MPC format:

NET UCAC-4
2013-070B     C2015 06 26.72600 22 41 33.99 -07 24 49.3          17.2 R      Q65
2013-070B     C2015 06 26.72727 22 41 34.61 -07 25 04.2          16.7 R      Q65
2013-070B     C2015 06 26.72855 22 41 35.02 -07 25 16.2          15.9 R      Q65
2013-070B     C2015 06 26.72985 22 41 35.47 -07 25 28.4          17.9 R      Q65
2013-070B     C2015 06 26.74046 22 41 39.36 -07 27 14.7          17.8 R      Q65
2013-070B     C2015 06 26.74178 22 41 39.92 -07 27 29.1          16.7 R      Q65
2013-070B     C2015 06 26.74308 22 41 40.28 -07 27 40.4          15.8 R      Q65
2013-070B     C2015 06 26.74436 22 41 40.83 -07 27 54.2          17.7 R      Q65

- 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 Sun Jun 28 2015 - 13:12:10 UTC

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