MPEC 2009-W90 : 2009 WC54
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M.P.E.C. 2009-W90 Issued 2009 Nov. 24, 12:26 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.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
2009 WC54
Observations:
K09W54C* C2009 11 24.26337 03 21 59.04 +27 07 53.5 20.3 V EW090G96
K09W54C C2009 11 24.26816 03 21 57.49 +27 07 11.8 20.1 V EW090G96
K09W54C C2009 11 24.27295 03 21 55.87 +27 06 30.0 20.5 V EW090G96
K09W54C C2009 11 24.27760 03 21 54.39 +27 05 49.3 20.6 V EW090G96
K09W54C C2009 11 24.28684 03 21 51.33 +27 04 28.8 20.7 V EW090G96
K09W54C C2009 11 24.28755 03 21 51.08 +27 04 22.5 20.6 V EW090G96
K09W54C C2009 11 24.28823 03 21 50.86 +27 04 16.3 20.6 V EW090G96
K09W54C C2009 11 24.28898 03 21 50.65 +27 04 09.4 20.1 V EW090G96
K09W54C C2009 11 24.37374 03 21 23.08 +26 51 46.4 20.3 R EW090926
K09W54C C2009 11 24.37727 03 21 21.82 +26 51 14.9 20.5 R EW090926
K09W54C C2009 11 24.45090 03 20 58.54 +26 40 18.4 19.1 R EW090H01
K09W54C C2009 11 24.45589 03 20 57.02 +26 39 34.0 19.5 R EW090H01
K09W54C C2009 11 24.46197 03 20 55.14 +26 38 39.9 19.3 R EW090H01
K09W54C C2009 11 24.46542 03 20 54.10 +26 38 09.3 19.5 R EW090H01
Observer details:
926 Tenagra II Observatory. Observers P. R. Holvorcem, M. Schwartz. Measurer
P. R. Holvorcem. 0.81-m f/7 Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer R. E. Hill. Measurers E. C. Beshore,
A. Boattini, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson, R. H. McNaught. 1.5-m reflector + CCD.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 reflector + CCD.
Orbital elements:
2009 WC54 Earth MOID = 0.1243 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 241.54629 (2000.0) P Q
n 1.13178175 Peri. 347.09614 -0.61722510 +0.72784767
a 0.9119288 Node 243.95366 -0.68909862 -0.68336246
e 0.2308999 Incl. 19.42406 -0.37970549 +0.05703966
P 0.87 H 23.8 G 0.15 U 9
Residuals in seconds of arc
091124 G96 0.0 0.1+ 091124 G96 0.3- 0.1+ 091124 H01 0.2- 0.0
091124 G96 0.3+ 0.1+ 091124 G96 0.2- 0.2- 091124 H01 0.0 0.0
091124 G96 0.3- 0.1+ 091124 G96 0.2+ 0.5- 091124 H01 0.1- 0.1-
091124 G96 0.3+ 0.0 091124 926 0.9+ 0.2+ 091124 H01 0.2+ 0.0
091124 G96 0.0 0.2+ 091124 926 0.7- 0.1-
Ephemeris:
2009 WC54 a,e,i = 0.91, 0.23, 19 q = 0.7014
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 11 25 03 18.33 +25 20.6 0.132 1.117 168.8 9.9 20.3
2009 11 26 03 13.56 +22 53.6 0.132 1.116 167.5 11.0 20.3
2009 11 27 03 09.01 +20 26.2 0.132 1.115 165.5 12.8 20.4
2009 11 28 03 04.68 +17 59.6 0.133 1.114 163.0 15.0 20.5
2009 11 29 03 00.56 +15 34.6 0.134 1.113 160.4 17.3 20.6
2009 11 30 02 56.66 +13 12.0 0.135 1.112 157.6 19.8 20.7
2009 12 01 02 52.97 +10 52.6 0.137 1.111 154.7 22.3 20.8
2009 12 02 02 49.49 +08 37.1 0.139 1.110 151.9 24.7 20.9
2009 12 03 02 46.21 +06 26.0 0.141 1.109 149.1 27.2 21.0
2009 12 04 02 43.12 +04 19.8 0.143 1.108 146.3 29.6 21.1
2009 12 05 02 40.23 +02 18.6 0.146 1.106 143.6 31.9 21.2
2009 12 06 02 37.51 +00 22.8 0.149 1.105 141.0 34.2 21.3
2009 12 07 02 34.97 -01 27.6 0.152 1.104 138.4 36.3 21.4
2009 12 08 02 32.60 -03 12.5 0.156 1.102 135.9 38.4 21.5
2009 12 09 02 30.40 -04 52.0 0.159 1.101 133.6 40.4 21.6
2009 12 10 02 28.35 -06 26.3 0.163 1.099 131.3 42.3 21.7
2009 12 11 02 26.45 -07 55.3 0.167 1.098 129.1 44.1 21.8
2009 12 12 02 24.69 -09 19.4 0.171 1.096 127.0 45.9 21.9
2009 12 13 02 23.07 -10 38.7 0.175 1.094 125.0 47.5 22.0
2009 12 14 02 21.59 -11 53.5 0.179 1.092 123.0 49.1 22.1
2009 12 15 02 20.23 -13 03.9 0.184 1.091 121.2 50.6 22.2
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-W90
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