SATOBS ML (remote), 7 Sep 2015: Chang'e 2 and 3 r/b (2010-050B and 2013-070B)

From: Marco Langbroek via Seesat-l <seesat-l_at_satobs.org>
Date: Tue, 8 Sep 2015 14:59:30 +0200
39459 13 070B   9331 G 20150907134737000 17 75 0021327-178969 56 I+162 10
39459 13 070B   9331 G 20150907135407000 17 75 0021327-179033 56 I+164 10
39459 13 070B   9331 G 20150907135731000 17 75 0021328-179066 56 I+168 10
39459 13 070B   9331 G 20150907140409000 17 75 0021328-179129 56 I+165 10
39459 13 070B   9331 G 20150907141018000 17 75 0021327-179186 56 I+166 10

37175 10 050B   9331 F 20150907162856000 17 75 0410184-168680 56 I
37175 10 050B   9331 F 20150907163017000 17 75 0410205-168785 56 I
37175 10 050B   9331 F 20150907163139000 17 75 0410229-168896 56 I
37175 10 050B   9331 F 20150907163259000 17 75 0410249-168998 56 I
37175 10 050B   9331 F 20150907163421000 17 75 0410272-169104 56 I
37175 10 050B   9331 F 20150907163541000 17 75 0410293-169206 56 I
37175 10 050B   9331 F 20150907163702000 17 75 0410313-169308 56 I
37175 10 050B   9331 F 20150907163821000 17 75 0410335-169414 56 I
37175 10 050B   9331 F 20150907164102000 17 75 0410378-169623 56 I

----------------------------------------------------------------------
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
----------------------------------------------------------------------


My periodic update of the wanderings of the CZ-3C upper stages from the Chang'e
2 and 3 Lunar missions, moving in chaotic trans-Lunar orbits. Imaged using the
0.51-m telescope at MPC Q65 Warrumbungle, Australia.

2013-070B (Chang'e 3 r/b) was imaged at a distance of about 517 000 km
(1.3 Lunar Distances) near apogee.

2010-050B (Chang'e 2 r/b) was imaged at a distance of about 334 000 km
(0.87 Lunar Distances) near perigee.


Updated orbits:

2010-050B  Chang'e 2 rb

Perigee 2015 Sep 6.011865 TT =  0:17:05 (JD 2457271.511865)
Epoch 2015 Sep  7.0 TT;                    Find_Orb

M  12.33375              (2000.0)
n  12.48184652        Peri.  178.56758
a  397268.636 km      Node   220.10419
e  0.1608990          Incl.   39.74045
P  28.84 days         q   333348.476 km  Q 461188.796 km

Chang'e 2 rb                                       333348 x 461189 km
1 37175U 10050B   15250.00000000  .00000000  00000-0  00000-0 0    06
2 37175  39.7390 220.3250 1659623 179.0284  11.8663  0.03427279    09

 From 17 observations 2015 Jul 18 - Sep 7; mean residual 0".515.


2013-070B  Chang'e 3 rb

Perigee 2015 Sep 15.314840 TT =  7:33:22 (JD 2457280.814840)
Epoch 2015 Sep  7.0 TT = JDT 2457272.5      Find_Orb

M  197.49485              (2000.0)
n  19.54398985       Peri.   45.62726
a  294619.408 km     Node   136.65801
e  0.8036455         Incl.   23.54235
P  18.42 days        q    57849.8396 km  Q 531388.976 km

Chang'e 3 rb                                        57850 x 531389 km
1 39459U 13070B   15250.00000000  .00000000  00000-0  00000-0 0    06
2 39459  23.5407 136.8742 8027629  45.6123 197.5408  0.05412458    02

 From 32 observations 2015 Jul 5 - Sep 7; mean residual 0".466.


Same observations as above, but in MPC format:

NET UCAC-4
2013-070B     C2015 09 07.57473 00 21 32.66 -17 53 48.7          16.2 R      Q65
2013-070B     C2015 09 07.57925 00 21 32.74 -17 54 11.9          16.4 R      Q65
2013-070B     C2015 09 07.58161 00 21 32.75 -17 54 23.9          16.8 R      Q65
2013-070B     C2015 09 07.58622 00 21 32.77 -17 54 46.6          16.5 R      Q65
2013-070B     C2015 09 07.59049 00 21 32.70 -17 55 07.1          16.6 R      Q65
2010-050B     C2015 09 07.68676 04 10 18.38 -16 52 04.9                      Q65
2010-050B     C2015 09 07.68770 04 10 20.54 -16 52 42.7                      Q65
2010-050B     C2015 09 07.68865 04 10 22.86 -16 53 22.6                      Q65
2010-050B     C2015 09 07.68957 04 10 24.88 -16 53 59.3                      Q65
2010-050B     C2015 09 07.69052 04 10 27.16 -16 54 37.4                      Q65
2010-050B     C2015 09 07.69145 04 10 29.25 -16 55 14.3                      Q65
2010-050B     C2015 09 07.69238 04 10 31.32 -16 55 50.9                      Q65
2010-050B     C2015 09 07.69330 04 10 33.54 -16 56 29.0                      Q65
2010-050B     C2015 09 07.69516 04 10 37.82 -16 57 44.3                      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 Tue Sep 08 2015 - 07:59:10 UTC

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