MPEC 2008-P36 : 2007 RT12
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M.P.E.C. 2008-P36 Issued 2008 Aug. 8, 03:21 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 http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
2007 RT12
Revision to MPEC 2007-R68
Additional Observations:
K07R12T C2008 08 03.93616 21 26 58.38 +62 36 44.0 EP036J95
K07R12T C2008 08 03.93849 21 26 57.76 +62 36 16.7 EP036J95
K07R12T C2008 08 03.94081 21 26 57.15 +62 35 50.3 20.1 R EP036J95
K07R12T IC2008 08 07.94478 21 19 03.78 +48 42 37.5 EP036J95
K07R12T IC2008 08 07.95988 21 19 01.63 +48 39 27.8 EP036J95
Observer details:
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
080803 J95 0.12+ 0.05- 080807 J95 0.13+ 0.03- MPO126785 -0.020 day
Orbital elements:
2007 RT12 Earth MOID = 0.0442 AU
Epoch 2008 May 14.0 TT = JDT 2454600.5 MPC
M 4.53779 (2000.0) P Q
n 0.96169020 Peri. 42.96393 -0.85728163 +0.51461966
a 1.0165122 Node 167.98050 -0.49006612 -0.80653286
e 0.1600738 Incl. 4.21993 -0.15780812 -0.29098342
P 1.02 H 23.8 G 0.15 U 4
Residuals in seconds of arc
070912 G96 0.4+ 0.0 070913 291 0.3+ 0.4- 070919 691 0.1- 0.4-
070912 G96 0.4+ 0.0 070913 291 0.2- 0.5+ 070919 691 0.1- 1.1-
070912 G96 0.9- 0.2- 070913 G96 0.6- 0.1- 070930 291 0.9+ 0.8+
070912 G96 0.2- 0.1+ 070913 G96 0.2+ 0.1+ 070930 291 (0.6+ 2.0-)
070912 G96 0.3+ 0.2+ 070913 G96 0.2+ 0.4+ 070930 291 0.2- 0.2-
070912 G96 0.1- 0.0 070913 G96 0.3- 0.1+ 080803 J95 0.2+ 0.3-
070912 G96 0.0 0.4+ 070914 291 0.7- 0.1- 080803 J95 0.0 0.2-
070912 G96 0.1+ 0.4+ 070914 291 0.7- 0.5+ 080803 J95 0.1- 0.7+
070913 H55 0.1+ 0.4+ 070914 291 0.2- 0.6- 080807 J95 0.8- 1.0+
070913 H55 0.3+ 0.3+ 070917 H55 0.2- 0.2- 080807 J95 0.7+ 1.0-
070913 H55 0.0 0.7+ 070917 H55 (1.6- 0.7+)
070913 291 1.1+ 0.3+ 070917 H55 0.3+ 0.1+
Ephemeris:
2007 RT12 a,e,i = 1.02, 0.16, 4 q = 0.8538
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 08 02 21 33.52 +68 57.2 0.0480 1.018 92.9 84.4 20.2
2008 08 12 21 14.78 +34 50.3 0.0486 1.045 130.1 47.9 19.1
2008 08 22 21 10.69 +08 19.0 0.0645 1.071 155.8 22.8 19.1
2008 09 01 21 11.38 -06 26.9 0.0912 1.094 157.5 20.6 19.8
2008 09 11 21 16.39 -14 07.7 0.125 1.115 148.6 28.1 20.8
2008 09 21 21 25.08 -18 01.4 0.164 1.133 139.6 35.0 21.6
Gareth V. Williams (C) Copyright 2008 MPC M.P.E.C. 2008-P36
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