MPEC 2009-A50 : 2005 UF1
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M.P.E.C. 2009-A50 Issued 2009 Jan. 9, 13:08 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
2005 UF1
Revision to MPEC 2005-U47
Additional Observations:
K05U01F 2C2008 10 21.24234019 57 56.831-36 54 52.88 23.3 R EA050568
K05U01F 2C2008 10 22.24546619 59 43.212-36 42 21.67 23.7 R EA050568
Observer details:
568 Mauna Kea. Observers M. Micheli, G. T. Elliott, D. J. Tholen. Measurers
D. J. Tholen, M. Micheli. 2.24-m University of Hawaii reflector.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
081021 568 51.8- 0.5- 081022 568 51.7- 0.9- MPO 97871 +0.046 day
Orbital elements:
2005 UF1 Earth MOID = 0.2524 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 337.77219 (2000.0) P Q
n 0.30510647 Peri. 1.25957 +0.63197700 -0.75409419
a 2.1852532 Node 49.57887 +0.70896815 +0.46940705
e 0.4315146 Incl. 13.57861 +0.31300037 +0.45934623
P 3.23 H 20.5 G 0.15 U 1
Residuals in seconds of arc
051024 703 0.1- 0.9- 051027 704 0.3- 0.0 051109 703 0.4- 0.3-
051024 703 0.1- 1.0+ 051027 704 0.6+ 0.2+ 051109 703 0.2- 0.8+
051024 703 0.7- 0.4+ 051027 704 0.3+ 0.5- 051118 448 0.0 0.1-
051024 703 0.6- 0.9- 051027 448 0.2+ 0.4- 051118 448 0.1- 0.2-
051024 703 0.7- 0.8- 051027 704 0.5+ 0.9- 051118 448 0.1- 0.3-
051024 703 0.3- 0.0 051027 448 0.1- 0.4- 051118 147 0.1- 0.2+
051024 703 0.5- 0.0 051027 448 0.1+ 0.5- 051119 147 0.0 0.4+
051024 703 0.0 0.8+ 051030 699 0.4+ 0.0 051125 703 0.2- 0.1-
051025 G96 0.5+ 0.0 051030 699 1.1- 0.6+ 051125 703 1.4- 0.5-
051025 G96 0.4+ 0.1+ 051030 699 1.1- 0.2- 051125 703 1.1- 0.6+
051025 G96 0.3+ 0.2+ 051030 699 0.2+ 0.9+ 051125 703 0.8- 0.9+
051025 G96 0.2+ 0.2+ 051030 143 0.4- 0.5+ 051129 704 0.6- 0.7+
051025 682 (0.7- 2.3+) 051030 143 0.1+ 0.3+ 051129 704 0.8+ 0.6+
051025 682 (1.0- 2.4+) 051030 143 0.9- 0.3- 051129 704 0.3+ 0.4-
051025 734 0.5- 0.5+ 051103 704 0.4+ 0.9+ 051129 704 1.6+ 0.2-
051025 734 0.2- 0.3- 051103 704 1.0+ 1.3+ 051201 143 0.2- 0.4-
051025 734 0.2- 0.1- 051103 704 0.5+ 1.7+ 051201 143 0.5- 0.5-
051026 704 0.2+ 0.0 051103 704 0.4+ 0.1- 051201 143 0.6- 0.2-
051026 704 0.4- 0.0 051106 699 0.1+ 0.1- 051231 696 0.1- 0.2-
051026 704 0.2+ 0.8+ 051106 699 0.0 0.2- 051231 696 0.0 0.5-
051026 704 0.0 0.5+ 051106 699 0.4+ 0.0 081021 568 0.0 0.0
051026 J95 0.8+ 0.3- 051106 699 0.0 0.1- 081022 568 0.0 0.1+
051026 J95 0.4+ 0.6- 051109 703 0.6- 0.2+
051027 704 0.0 0.4- 051109 703 0.2- 0.5-
Ephemeris:
2005 UF1 a,e,i = 2.19, 0.43, 14 q = 1.2423
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 01 09 23 10.98 -10 36.7 1.544 1.286 56.0 39.4 23.6
2009 01 19 23 39.27 -05 54.8 1.558 1.264 54.1 39.1 23.5
2009 01 29 00 08.31 -01 02.9 1.576 1.249 52.4 38.7 23.5
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-A50
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