MPEC 2006-A61 : 2000 WC1
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M.P.E.C. 2006-A61 Issued 2006 Jan. 11, 19:26 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.
Supported in part by the Brinson Foundation
Supported in part by the TABASGO Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2000 WC1
Revision to MPEC 2000-W06
Additional Observations:
K00W01C 7C2005 12 29.46481 13 14 56.57 +71 58 37.8 EA061696
K00W01C 7C2005 12 29.46992 13 14 58.78 +71 58 50.5 EA061696
K00W01C 7C2005 12 29.48017 13 15 03.94 +71 59 18.2 EA061696
K00W01C 7C2005 12 29.49961 13 15 13.04 +72 00 09.9 EA061696
K00W01C 7C2005 12 30.48644 13 23 42.81 +72 41 27.6 EA061696
K00W01C 7C2005 12 30.49668 13 23 48.07 +72 41 53.1 EA061696
Observer details:
696 Whipple Observatory, Mt. Hopkins. Observer K. Smalley. Measurers
T. B. Spahr, K. Smalley. 1.2-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
051229 696 0.01- 0.09- 051230 696 0.01- 0.09- MPO 8536 -0.047 day
Orbital elements:
2000 WC1 Earth MOID = 0.0038 AU
Epoch 2006 Mar. 6.0 TT = JDT 2453800.5 MPC
M 262.92236 (2000.0) P Q
n 1.19501202 Peri. 229.98054 +0.16095797 +0.95928196
a 0.8794703 Node 50.86576 -0.78962075 +0.26624697
e 0.2627275 Incl. 17.41113 -0.59210777 -0.09429036
P 0.82 H 22.3 G 0.15 U 5
Residuals in seconds of arc
001116 704 1.0- 0.2- 001118 853 0.6- 0.9- 001118 046 0.1+ 0.8-
001116 704 0.5- 0.3- 001118 853 0.5- 0.8- 001118 118 0.1+ 0.4-
001116 704 0.4- 0.0 001118 853 0.0 1.0- 001118 118 0.5- 0.5-
001116 704 0.2+ 0.7+ 001118 853 0.3+ 1.0- 001119 118 0.6- 0.2-
001117 704 0.5- 0.3- 001118 853 0.2+ 1.0- 001121 587 0.2- 1.0-
001117 704 0.9- 0.1+ 001118 919 0.7+ 0.7+ 001121 587 0.6- 0.1+
001117 704 0.1- 0.4+ 001118 919 0.7+ 0.8+ 001125 587 0.4- 0.4+
001117 704 0.1- 0.0 001118 919 0.5+ 0.0 001125 587 0.3- 0.8-
001117 704 0.6- 0.3+ 001118 919 1.4+ 1.8- 001222 696 0.1+ 1.2-
001117 704 0.3+ 0.7+ 001118 557 0.1- 0.0 001222 696 0.0 0.0
001117 704 0.1+ 0.0 001118 557 0.2- 0.5- 001222 696 0.5+ 0.3+
001117 704 (1.9- 1.3+) 001118 557 0.1+ 0.5- 051229 696 0.5+ 0.0
001117 704 (1.3+ 2.1+) 001118 557 0.2+ 0.1- 051229 696 0.6- 0.9-
001117 704 1.2+ 0.6+ 001118 046 0.8- 0.4- 051229 696 0.6+ 0.4-
001117 704 (1.1- 2.3+) 001118 046 0.2- 0.1+ 051229 696 0.1- 0.0
001117 704 1.4+ 1.5+ 001118 046 0.1+ 1.4- 051230 696 0.1+ 1.0+
001118 853 0.4- 0.8- 001118 046 0.6+ 0.2- 051230 696 0.8+ 0.2+
Ephemeris:
2000 WC1 a,e,i = 0.88, 0.26, 17 q = 0.6484
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2006 01 05 14 18.78 +76 05.6 0.293 1.108 107.6 57.8 21.9
2006 01 15 16 37.38 +79 48.7 0.305 1.099 104.1 60.3 22.1
2006 01 25 19 10.81 +79 57.5 0.317 1.083 99.6 63.6 22.2
2006 02 04 21 00.46 +78 01.3 0.327 1.062 94.4 67.8 22.4
2006 02 14 22 11.16 +75 29.6 0.331 1.035 88.7 72.6 22.5
2006 02 24 23 00.84 +72 42.6 0.329 1.001 82.5 78.5 22.6
2006 03 06 23 38.10 +69 24.6 0.319 0.963 75.5 85.9 22.7
2006 03 16 00 05.85 +64 52.8 0.301 0.919 66.9 95.5 22.9
Gareth V. Williams (C) Copyright 2006 MPC M.P.E.C. 2006-A61
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