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Read MPEC 2007-Y60
Read MPEC 2008-A01
M.P.E.C. 2007-Y61 Issued 2007 Dec. 31, 12:49 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
2006 SU131
Revision to MPEC 2006-S74
Additional Observations:
K06SD1U HC2007 12 15.40829 10 43 07.91 +13 31 25.4 EY061291
K06SD1U HC2007 12 15.42491 10 43 08.78 +13 31 26.1 EY061291
K06SD1U HC2007 12 15.43768 10 43 09.38 +13 31 25.7 EY061291
K06SD1U C2007 12 31.38948 10 53 37.44 +14 15 16.2 22.6 V EY061291
K06SD1U HC2007 12 31.40013 10 53 37.78 +14 15 20.5 EY061291
Observer details:
291 LPL/Spacewatch II. Observers T. H. Bressi, M. T. Read. 1.8-m f/2.7
reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
071215 291 7.9- 3.3+ 071231 291 6.8- 3.4+ MPO112931 +0.0034 day
Orbital elements:
2006 SU131 PHA, Earth MOID = 0.0339 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 229.24322 (2000.0) P Q
n 0.43400693 Peri. 167.61455 +0.09143816 +0.98287022
a 1.7277130 Node 107.46501 -0.92735401 +0.14259570
e 0.3956503 Incl. 9.65699 -0.36284101 -0.11675873
P 2.27 H 18.7 G 0.15 U 3
Residuals in seconds of arc
060926 703 (1.7+ 0.2-) 060930 291 0.1+ 0.1+ 061026 711 0.3+ 0.3-
060926 703 0.1+ 0.8- 061001 291 0.6- 0.8- 061026 711 1.1- 0.1+
060926 703 0.6- 0.2+ 061001 291 0.5- 0.1+ 061026 711 1.0+ 0.1+
060926 703 0.3- 0.2+ 061001 291 0.6- 0.6- 061102 448 1.1- 0.5+
060926 703 0.2+ 1.1+ 061011 291 0.3- 0.2+ 061102 448 0.2- 0.1-
060926 703 0.6+ 0.8+ 061011 291 0.1+ 0.4+ 061102 448 0.1- 0.4-
060927 703 0.1+ 0.8- 061011 291 0.1+ 0.4+ 061117 711 1.1+ 1.2-
060927 703 0.1+ 0.9+ 061011 673 0.6+ 0.1- 061117 711 0.4+ 0.2+
060927 703 0.9- 0.8+ 061011 673 0.6- 0.3- 061117 711 1.0+ 0.4+
060927 G96 0.6+ 0.3- 061011 673 0.8+ 0.5- 061216 291 0.0 0.5+
060927 G96 0.6+ 0.1- 061011 673 0.1- 0.8- 061216 291 0.4+ 0.7+
060927 G96 0.2+ 0.3- 061020 448 0.1- 0.3- 061216 291 0.0 0.4-
060927 G96 0.2+ 0.0 061020 448 0.3+ 0.1- 071215 291 1.2- 0.8+
060928 291 0.0 0.1- 061020 448 0.2- 0.0 071215 291 0.3- 0.5+
060928 291 0.2+ 0.1+ 061020 703 0.6- 0.8- 071215 291 0.5- 0.7-
060928 291 0.2+ 0.1+ 061020 703 0.2- 0.3- 071231 291 0.3+ 0.9-
060930 291 0.4+ 0.2+ 061020 703 0.4+ 0.3- 071231 291 1.3+ 0.3+
060930 291 0.0 0.2+ 061020 703 0.2+ 0.6-
Ephemeris:
2006 SU131 a,e,i = 1.73, 0.40, 10 q = 1.0441
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 12 26 10 50.76 +13 53.6 1.495 2.106 114.8 25.1 22.3
2008 01 05 10 55.42 +14 40.3 1.351 2.070 124.1 23.2 22.0
2008 01 15 10 56.95 +15 57.0 1.220 2.031 134.1 20.3 21.7
2008 01 25 10 54.78 +17 45.7 1.103 1.991 144.8 16.5 21.3
2008 02 04 10 48.39 +20 04.6 1.007 1.948 155.8 12.0 20.9
2008 02 14 10 37.69 +22 44.3 0.933 1.904 164.8 7.8 20.5
2008 02 24 10 23.47 +25 26.3 0.885 1.857 164.4 8.3 20.4
2008 03 05 10 07.49 +27 48.2 0.863 1.809 154.5 13.7 20.5
2008 03 15 09 52.32 +29 31.3 0.863 1.759 142.4 20.2 20.6
2008 03 25 09 40.44 +30 28.4 0.881 1.708 130.7 26.3 20.8
2008 04 04 09 33.40 +30 42.3 0.910 1.655 120.0 31.6 20.9
2008 04 14 09 31.77 +30 19.9 0.945 1.600 110.4 36.0 21.1
2008 04 24 09 35.33 +29 28.5 0.982 1.545 102.0 39.6 21.2
2008 05 04 09 43.43 +28 13.0 1.015 1.489 94.7 42.5 21.2
2008 05 14 09 55.44 +26 35.5 1.044 1.432 88.4 44.9 21.3
2008 05 24 10 10.68 +24 37.1 1.066 1.376 82.9 46.9 21.3
2008 06 03 10 28.63 +22 17.4 1.079 1.321 78.2 48.7 21.3
2008 06 13 10 48.93 +19 35.3 1.084 1.268 74.2 50.4 21.3
2008 06 23 11 11.25 +16 30.1 1.081 1.217 70.9 52.1 21.2
2008 07 03 11 35.46 +13 00.4 1.070 1.170 68.2 53.8 21.2
2008 07 13 12 01.53 +09 05.6 1.052 1.129 66.1 55.4 21.1
Timothy B. Spahr (C) Copyright 2007 MPC M.P.E.C. 2007-Y61
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