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Post Info TOPIC: Asteroid 2012 OP


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Comet C/2012 OP (Siding Spring)
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Comet C/2012 OP (Siding Spring) is at Opposition (3.050 AU) on the 3rd June, 2013.

Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   Mag
2013 06 01    17 18 56.1 +07 26 36   3.0441  3.9456   148.7     7.7        19.4
2013 06 02    17 17 19.9 +07 41 09   3.0469  3.9492   148.8     7.7        19.4
2013 06 03    17 15 43.5 +07 55 29   3.0502  3.9528   148.8     7.6        19.5
2013 06 04    17 14 07.2 +08 09 36   3.0539  3.9564   148.8     7.6        19.5
2013 06 05    17 12 30.8 +08 23 30   3.0580  3.9601   148.7     7.7        19.5
2013 06 06    17 10 54.4 +08 37 10   3.0626  3.9637   148.5     7.7        19.5
2013 06 07    17 09 18.2 +08 50 36   3.0675  3.9674   148.4     7.7        19.5
2013 06 08    17 07 42.1 +09 03 48   3.0729  3.9711   148.1     7.8        19.5
2013 06 09    17 06 06.3 +09 16 46   3.0788  3.9748   147.8     7.8        19.5
2013 06 10    17 04 30.7 +09 29 29   3.0850  3.9785   147.5     7.9        19.5


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Comet C/2012 OP (Siding Spring) makes its closest approach to the Earth (3.036 AU) on the 26th May, 2013.

Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   Mag

2013 05 25    17 30 01.6 +05 39 30   3.0361  3.9209   146.5     8.2
2013 05 26    17 28 27.8 +05 55 19   3.0359  3.9244   147.0     8.1
2013 05 27    17 26 53.4 +06 10 58   3.0362  3.9279   147.4     8.0
2013 05 28    17 25 18.6 +06 26 28   3.0369  3.9314   147.8     7.9
2013 05 29    17 23 43.4 +06 41 47   3.0381  3.9350   148.1     7.8
2013 05 30    17 22 07.9 +06 56 55   3.0396  3.9385   148.3     7.8
2013 05 31    17 20 32.1 +07 11 51   3.0416  3.9421   148.5     7.7


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Orbital elements:
    C/2012 OP (Siding Spring)
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5
T 2012 Dec. 4.70933 TT                                  MPC
q   3.6070519            (2000.0)            P               Q
z  +0.0009297      Peri.  351.42858     +0.01715751     -0.42162369
 +/-0.0000042      Node   267.37070     -0.85510817     -0.47609943
e   0.9966465      Incl.  114.82914     -0.51816565     +0.77172715
From 64 observations 2012 July 16-2013 Apr. 19

MPEC 2013 - H36

Key to Orbital elements

Comet C/2012 OP (SIDING SPRING) was discovered on the 16th July, 2012, by the Siding Spring Survey.
The preliminary orbital elements of the comet indicate a perihelion passage was on the 4th December, 2012.



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L

Posts: 131433
Date:
Asteroid 2012 OP
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Orbital elements:
2012 OP
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M   0.00376              (2000.0)            P               Q
n   0.00002798     Peri.  351.42881     +0.01715539     -0.42162457
a1074.5102530      Node   267.37067     -0.85511005     -0.47609572
e   0.9966431      Incl.  114.82919     -0.51816262     +0.77172896
P 35220            H   14.0           G   0.15

MPEC 2013 - H12

Key to Orbital elements



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Orbital elements:
2012 OP
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
M 359.56033              (2000.0)            P               Q
n   0.00490147     Peri.  356.96404     -0.00726295     -0.40379836
a  34.3229884      Node   268.35888     -0.89709870     -0.40153033
e   0.8982708      Incl.  113.76663     -0.44177051     +0.82202206
P 201              H   14.0           G   0.15           U   7

MPEC 2012 - O12

Ed ~ 4 - 9 km



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