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M.P.E.C. 2009-Y20 Issued 2009 Dec. 17, 14:34 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 WE253
Observations:
K09WP3E* C2009 11 19.46066 09 07 37.45 +21 22 35.2 19.7 V EY020G96
K09WP3E C2009 11 19.46649 09 07 37.63 +21 22 29.9 19.8 V EY020G96
K09WP3E C2009 11 19.47234 09 07 37.84 +21 22 24.8 19.8 V EY020G96
K09WP3E C2009 11 19.47818 09 07 38.06 +21 22 19.5 19.6 V EY020G96
K09WP3E C2009 12 10.12697 09 08 33.98 +16 47 49.4 19.3 V EY020J75
K09WP3E C2009 12 10.13911 09 08 33.54 +16 47 41.8 19.5 V EY020J75
K09WP3E C2009 12 10.15183 09 08 33.11 +16 47 31.8 19.4 V EY020J75
K09WP3E C2009 12 17.41904 09 03 08.02 +15 30 17.3 19.1 V EY020G96
K09WP3E C2009 12 17.42603 09 03 07.59 +15 30 13.5 19.4 V EY020G96
K09WP3E C2009 12 17.43308 09 03 07.16 +15 30 09.6 19.3 V EY020G96
K09WP3E C2009 12 17.44020 09 03 06.73 +15 30 05.3 19.6 V EY020G96
K09WP3E C2009 12 17.47087 09 03 04.84 +15 29 47.1 19.0 R EY020H01
K09WP3E C2009 12 17.47841 09 03 04.37 +15 29 42.7 19.0 R EY020H01
K09WP3E C2009 12 17.48690 09 03 03.86 +15 29 37.6 19.0 R EY020H01
K09WP3E C2009 12 17.49405 09 03 03.43 +15 29 33.3 19.1 R EY020H01
K09WP3E C2009 12 17.53913 09 03 00.73 +15 29 06.2 19.2 R EY020H01
K09WP3E C2009 12 17.54528 09 03 00.35 +15 29 02.5 19.0 R EY020H01
K09WP3E C2009 12 17.55016 09 03 00.07 +15 28 59.6 19.2 R EY020H01
Observer details:
G96 Mt. Lemmon Survey. Observers S. M. Larson, A. R. Gibbs. 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. Observer W. H. Ryan. 2.4-m f/8.9
reflector + CCD.
J75 OAM Observatory, La Sagra. Observers S. Sanchez, J. Nomen, R. Stoss,
W. K. Y. Yeung, J. Rodriguez. 0.45-m f/2.8 reflector + CCD.
Orbital elements:
2009 WE253 Earth MOID = 0.2727 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 27.96138 (2000.0) P Q
n 0.23619794 Peri. 105.62017 +0.85104991 -0.48515602
a 2.5919024 Node 283.77356 +0.36654299 +0.82279168
e 0.5491317 Incl. 11.93423 +0.37597909 +0.29603630
P 4.17 H 17.7 G 0.15 U 5
Residuals in seconds of arc
091119 G96 0.1+ 0.0 091210 J75 0.3+ 0.7- 091217 H01 0.1- 0.3+
091119 G96 0.2- 0.1- 091217 G96 0.1+ 0.6- 091217 H01 0.1- 0.2+
091119 G96 0.1- 0.1+ 091217 G96 0.0 0.3- 091217 H01 0.1- 0.2+
091119 G96 0.2+ 0.0 091217 G96 0.0 0.1- 091217 H01 0.1+ 0.1+
091210 J75 0.2- 0.0 091217 G96 0.0 0.1- 091217 H01 0.1- 0.1+
091210 J75 0.2- 0.7+ 091217 H01 0.1+ 0.2+ 091217 H01 0.1+ 0.1+
Ephemeris:
2009 WE253 a,e,i = 2.59, 0.55, 12 q = 1.1686
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 12 15 09 05.25 +15 54.9 0.786 1.599 128.9 28.6 19.5
2009 12 25 08 54.65 +14 21.5 0.785 1.668 141.0 21.8 19.3
2010 01 04 08 40.17 +13 09.2 0.800 1.738 153.9 14.4 19.2
2010 01 14 08 23.92 +12 17.3 0.837 1.808 166.4 7.3 19.1
2010 01 24 08 08.40 +11 43.7 0.899 1.878 171.5 4.4 19.2
2010 02 03 07 55.69 +11 24.7 0.986 1.948 162.3 8.8 19.7
2010 02 13 07 46.88 +11 16.2 1.096 2.017 151.0 13.7 20.2
2010 02 23 07 42.27 +11 13.6 1.227 2.086 140.3 17.6 20.7
2010 03 05 07 41.52 +11 13.0 1.375 2.154 130.4 20.5 21.1
2010 03 15 07 44.04 +11 11.4 1.536 2.220 121.2 22.5 21.4
2010 03 25 07 49.25 +11 06.6 1.707 2.286 112.7 23.7 21.8
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-Y20
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