MPEC 2009-S138: 2007 VH186
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M.P.E.C. 2009-S138 Issued 2009 Sept. 29, 12:03 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 VH186
Revision to MPEC 2007-V108
Additional Observations:
K07VI6H C2009 09 28.40921 03 26 04.23 -17 53 13.5 ES138926
K07VI6H C2009 09 28.41593 03 26 04.22 -17 53 10.7 ES138926
K07VI6H C2009 09 28.42265 03 26 04.22 -17 53 06.8 20.8 R ES138926
K07VI6H C2009 09 29.42988 03 25 59.77 -17 44 25.2 20.1 R ES138926
K07VI6H C2009 09 29.43663 03 25 59.68 -17 44 21.5 20.2 R ES138926
K07VI6H C2009 09 29.44336 03 25 59.59 -17 44 18.1 20.1 R ES138926
K07VI6H C2009 09 29.45009 03 25 59.50 -17 44 14.4 20.2 R ES138926
K07VI6H C2009 09 29.45683 03 25 59.41 -17 44 10.6 20.0 R ES138926
K07VI6H C2009 09 29.46354 03 25 59.29 -17 44 07.1 20.0 R ES138926
Observer details:
926 Tenagra II Observatory. Observers P. R. Holvorcem, M. Schwartz. Measurer
P. R. Holvorcem. 0.81-m f/7 Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
090928 926 0.03+ 0.03+ 090929 926 0.03+ 0.03+ MPO133550 -0.022 day
Orbital elements:
2007 VH186 Earth MOID = 0.2799 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC
M 272.67945 (2000.0) P Q
n 0.49897020 Peri. 15.05292 +0.40890502 -0.87536880
a 1.5742957 Node 51.52178 +0.79954726 +0.20740668
e 0.1967904 Incl. 19.23682 +0.43991005 +0.43670577
P 1.98 H 20.2 G 0.15 U 2
Residuals in seconds of arc
071111 703 1.5+ 1.4- 071113 703 0.9- 0.0 071231 H55 0.2- 0.2-
071111 703 1.1- 0.0 071113 703 0.7+ 0.1- 080125 H55 0.2- 0.0
071111 703 0.3- 0.3- 071117 474 0.6+ 0.3- 080125 H55 0.2+ 0.5-
071111 703 (2.5+ 1.9-) 071117 474 0.0 0.2+ 080125 H55 0.2- 0.3+
071111 703 0.0 0.1+ 071117 474 0.2+ 0.1+ 090928 926 0.8- 0.4+
071111 703 0.9- 0.7+ 071130 H55 0.4- 0.2- 090928 926 0.1- 0.1-
071111 703 0.1+ 0.3- 071130 H55 0.2+ 0.2- 090928 926 0.8+ 0.4+
071111 703 0.1- 0.0 071130 H55 0.2- 0.0 090929 926 0.1+ 0.1-
071112 703 1.1- 0.1+ 071216 291 0.1+ 0.3- 090929 926 0.1+ 0.0
071112 703 0.8+ 0.2+ 071216 291 0.1- 0.1+ 090929 926 0.1+ 0.2-
071112 703 0.2+ 0.6+ 071216 291 0.2+ 0.2+ 090929 926 0.1+ 0.2-
071112 703 0.5+ 0.9+ 071231 H55 0.5- 0.2+ 090929 926 0.1+ 0.0
071113 703 0.0 0.3- 071231 H55 0.4+ 0.4+ 090929 926 0.3- 0.2-
Ephemeris:
2007 VH186 a,e,i = 1.57, 0.20, 19 q = 1.2645
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 09 26 03 25.97 -18 11.6 0.484 1.357 128.2 35.5 20.7
2009 10 06 03 23.81 -16 31.7 0.423 1.336 135.6 31.6 20.3
2009 10 16 03 14.18 -13 32.4 0.370 1.317 144.6 26.0 19.8
2009 10 26 02 56.68 -08 36.3 0.329 1.300 154.9 18.9 19.3
2009 11 05 02 33.19 -01 25.7 0.305 1.286 162.9 13.1 18.9
2009 11 15 02 07.97 +07 19.6 0.302 1.276 159.1 16.1 19.0
2009 11 25 01 46.49 +16 10.9 0.320 1.269 147.5 24.7 19.4
2009 12 05 01 32.68 +23 56.1 0.355 1.265 135.8 32.9 19.8
2009 12 15 01 27.71 +30 15.5 0.403 1.265 126.2 38.9 20.3
2009 12 25 01 31.31 +35 22.5 0.459 1.268 118.6 42.9 20.7
2010 01 04 01 42.55 +39 35.2 0.519 1.276 112.6 45.4 21.0
2010 01 14 02 00.49 +43 05.7 0.581 1.286 107.7 46.8 21.3
2010 01 24 02 24.54 +46 00.7 0.646 1.300 103.8 47.3 21.6
2010 02 03 02 54.07 +48 21.3 0.711 1.316 100.5 47.4 21.8
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-S138
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