MPEC 2012-X61 : 2012 DS85
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M.P.E.C. 2012-X61 Issued 2012 Dec. 11, 23:43 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2012 DS85
Revision to MPEC 2012-E44
Additional Observations:
K12D85S 5C2012 11 20.51012 09 15 46.56 +17 09 48.2 21.5 RrEX061290
K12D85S 5C2012 11 20.51203 09 15 46.56 +17 09 48.3 21.6 RrEX061290
K12D85S 5C2012 11 20.51968 09 15 46.56 +17 09 48.4 21.4 RrEX061290
K12D85S 5C2012 11 20.53306 09 15 46.57 +17 09 48.6 21.5 RrEX061290
K12D85S 5C2012 11 22.51573 09 15 47.12 +17 10 25.5 21.6 RrEX061290
K12D85S 5C2012 11 22.52145 09 15 47.11 +17 10 25.7 21.5 RrEX061290
K12D85S 5C2012 11 22.52336 09 15 47.10 +17 10 25.9 21.5 RrEX061290
K12D85S 5C2012 11 22.52718 09 15 47.10 +17 10 26.0 21.7 RrEX061290
K12D85S 5C2012 11 22.53673 09 15 47.09 +17 10 26.1 21.5 RrEX061290
K12D85S 5C2012 11 23.52395 09 15 47.02 +17 10 46.1 21.6 RrEX061290
K12D85S 5C2012 11 23.52586 09 15 47.01 +17 10 46.1 21.4 RrEX061290
K12D85S 5C2012 11 23.53159 09 15 47.01 +17 10 46.2 21.6 RrEX061290
K12D85S 5C2012 11 23.53539 09 15 47.00 +17 10 46.2 21.5 RrEX061290
K12D85S 5C2012 11 23.53731 09 15 47.00 +17 10 46.2 21.4 RrEX061290
K12D85S 5C2012 11 25.52810 09 15 46.13 +17 11 29.4 21.4 RrEX061290
K12D85S 5C2012 11 25.53001 09 15 46.12 +17 11 29.6 21.6 RrEX061290
K12D85S 5C2012 11 25.53573 09 15 46.11 +17 11 29.9 21.5 RrEX061290
K12D85S 5C2012 11 25.53764 09 15 46.11 +17 11 29.3 21.4 RrEX061290
Observer details:
290 Mt. Graham. Observers R. P. Boyle, V. Laugalys. Measurer K. Cernis.
1.80-m f/9.2 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
121120 290 49.5- 10.7+ 121125 290 50.4- 10.1+ MPO231180 -382 day
Orbital elements:
2012 DS85
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 47.03240 (2000.0) P Q
n 0.01193435 Peri. 303.75378 +0.26949842 -0.93653163
a 18.9642995 Node 128.97072 +0.95109070 +0.22234215
e 0.1346303 Incl. 16.76284 +0.15098701 +0.27105806
P 82.59 H 9.4 G 0.15 U 4
Residuals in seconds of arc
120219 290 0.1- 0.1+ 120227 290 0.4+ 0.1+ 120422 290 0.1+ 0.2-
120219 290 0.1- 0.1+ 120416 290 0.1- 0.0 120422 290 0.1+ 0.2-
120219 290 0.7+ 0.7+ 120416 290 0.0 0.1+ 120423 290 0.0 0.2-
120219 290 0.4+ 0.3+ 120417 290 0.2- 0.0 120423 290 0.2- 0.1-
120219 290 0.1- 0.3+ 120417 290 0.1- 0.1+ 120423 290 0.1- 0.0
120221 290 0.2- 0.4- 120417 290 0.2- 0.0 120423 290 0.5+ 0.1+
120221 290 0.3- 0.3- 120417 290 0.2- 0.2+ 120423 290 0.4+ 0.1+
120221 290 0.0 0.2- 120417 290 0.1- 0.3+ 120425 290 0.3- 0.3-
120221 290 0.0 0.1- 120417 290 0.2- 0.3+ 120425 290 0.1- 0.0
120221 290 0.1- 0.2- 120417 290 0.1- 0.1+ 121120 290 0.2- 0.0
120222 290 0.3- 0.0 120418 290 0.2- 0.2+ 121120 290 0.2- 0.1+
120222 290 1.0- 0.1- 120418 290 0.0 0.1- 121120 290 0.2- 0.1+
120222 290 0.2- 0.1- 120418 290 0.0 0.3+ 121120 290 0.2- 0.0
120224 290 0.0 0.6- 120418 290 0.1+ 0.3+ 121122 290 0.3+ 0.0
120224 290 0.2- 0.5- 120419 290 0.5- 0.4+ 121122 290 0.2+ 0.0
120224 290 0.7- 0.2- 120419 290 0.0 0.1- 121122 290 0.0 0.2+
120226 290 0.3+ 0.1+ 120419 290 0.1+ 0.1+ 121122 290 0.0 0.2+
120226 290 0.1- 0.2+ 120419 290 0.5+ 0.1- 121122 290 0.1- 0.1+
120226 290 0.1+ 0.1+ 120419 290 0.7+ 0.1+ 121123 290 0.2+ 0.1+
120226 290 0.2+ 0.3- 120419 290 0.5+ 0.2- 121123 290 0.1+ 0.1+
120226 290 0.3+ 0.3+ 120419 290 0.1- 0.0 121123 290 0.1+ 0.1+
120226 290 0.0 0.2+ 120419 290 0.1- 0.0 121123 290 0.0 0.0
120226 290 0.1+ 0.1- 120421 290 0.3- 0.1+ 121123 290 0.0 0.0
120227 290 0.1- 0.0 120421 290 0.3- 0.2+ 121125 290 0.2+ 0.4-
120227 290 0.1+ 0.0 120422 290 0.0 0.6- 121125 290 0.0 0.2-
120227 290 0.3- 0.1+ 120422 290 0.1+ 0.2- 121125 290 0.0 0.0
120227 290 0.2+ 0.1- 120422 290 0.1+ 0.0 121125 290 0.0 0.7-
120227 290 0.6+ 0.1+ 120422 290 0.0 0.1+
120227 290 0.6+ 0.0 120422 290 0.1+ 0.1-
Ephemeris:
2012 DS85 a,e,i = 18.96, 0.13, 17 q = 16.411
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 11 11 09 15 31.2 +17 07 50 17.3790 17.4547 92.8 3.2 22.1
...
2012 11 26 09 15 45.8 +17 11 41 17.1338 17.4617 107.9 3.1 22.1
...
2012 12 04 09 15 32.1 +17 15 22 17.0105 17.4654 116.0 2.9 22.1
...
2012 12 10 09 15 12.3 +17 18 50 16.9234 17.4682 122.2 2.7 22.0
2012 12 11 09 15 08.3 +17 19 28 16.9095 17.4687 123.2 2.7 22.0
2012 12 12 09 15 04.0 +17 20 07 16.8957 17.4692 124.3 2.7 22.0
...
2012 12 18 09 14 33.8 +17 24 21 16.8167 17.4720 130.5 2.5 22.0
...
2012 12 26 09 13 42.5 +17 30 46 16.7228 17.4757 138.9 2.1 22.0
...
2013 01 10 09 11 37.3 +17 44 45 16.5886 17.4827 154.7 1.4 21.9
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-X61
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