MPEC 2009-W140: 2009 SX1
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M.P.E.C. 2009-W140 Issued 2009 Nov. 30, 15:47 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 SX1
Revision to MPEC 2009-S45
Additional Observations:
K09S01X C2002 08 11.42677 21 30 13.72 -20 00 38.6 20.6 R EW140644
K09S01X C2002 08 11.43749 21 30 12.54 -20 00 40.8 EW140644
K09S01X C2002 08 11.44822 21 30 11.37 -20 00 42.8 EW140644
K09S01X C2002 08 15.21903 21 23 29.01 -20 13 34.4 20.3 R EW140644
K09S01X C2002 08 15.22596 21 23 28.25 -20 13 36.3 EW140644
K09S01X C2002 08 15.28965 21 23 21.13 -20 13 48.8 EW140644
K09S01X C2002 08 15.30181 21 23 19.78 -20 13 50.7 20.7 R EW140644
K09S01X C2002 08 15.35861 21 23 13.42 -20 14 01.5 20.3 R EW140644
K09S01X C2002 08 15.37400 21 23 11.68 -20 14 04.3 20.5 R EW140644
K09S01X C2002 08 18.28946 21 17 53.13 -20 22 35.4 EW140644
K09S01X C2002 08 18.34957 21 17 46.29 -20 22 45.0 EW140644
K09S01X C2002 08 29.27413 20 58 05.95 -20 40 36.5 20.9 R EW140644
K09S01X C2002 08 29.29073 20 58 04.15 -20 40 38.0 20.1 R EW140644
K09S01X C2002 08 29.29532 20 58 03.73 -20 40 38.2 20.4 R EW140644
K09S01X C2002 08 29.31624 20 58 01.49 -20 40 38.3 20.3 R EW140644
Observer details:
644 Palomar Mountain/NEAT. Observers R. Bambery, E. Helin, S. Pravdo,
M. Hicks, K. Lawrence, R. Thicksten. Measurer R. J. Bouma. 1.2-m Schmidt
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
020811 644 0.85- 0.40- 020829 644 0.83- 0.36- MPO164364 +0.0084 day
Orbital elements:
2009 SX1 Earth MOID = 0.0736 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 13.92209 (2000.0) P Q
n 0.43594280 Peri. 115.12458 -0.01030381 -0.99812361
a 1.7225945 Node 335.23900 +0.85768992 +0.02220939
e 0.4470641 Incl. 8.28573 +0.51406404 -0.05706146
P 2.26 H 18.9 G 0.15 U 2
Residuals in seconds of arc
020811 644 0.3+ 0.1+ 090918 595 0.0 0.5- 091003 160 0.1+ 0.7-
020811 644 0.1- 0.1+ 090918 595 0.0 0.2+ 091010 J95 0.3+ 0.1+
020811 644 0.3- 0.3+ 090918 595 0.1- 0.2- 091010 J95 0.3+ 0.0
020815 644 0.2- 0.2+ 090919 B15 0.2- 0.0 091011 926 0.0 0.1+
020815 644 0.1- 0.3- 090919 B15 0.1- 0.0 091011 926 0.0 0.2+
020815 644 0.1- 0.4- 090919 B15 0.3- 0.0 091011 926 0.0 0.0
020815 644 0.1+ 0.1+ 090919 B15 0.2- 0.0 091024 926 0.0 0.0
020815 644 0.2+ 0.1- 090919 H55 0.6+ 0.0 091024 926 1.1- 0.8-
020815 644 0.1- 0.1- 090919 H55 0.3- 0.4- 091024 926 0.1+ 0.1-
020818 644 0.0 0.0 090919 H55 0.2- 0.1- 091101 926 0.4+ 0.0
020818 644 0.4- 0.1- 090920 204 0.2- 0.1- 091101 926 0.3+ 0.1-
020829 644 0.1- 1.1+ 090920 204 0.3- 0.2- 091101 926 0.1+ 0.0
020829 644 0.5- 0.1+ 090920 204 0.1- 0.2- 091108 703 0.9- 0.2+
020829 644 0.5+ 0.0 090920 204 0.3- 0.1- 091108 703 1.2- 0.7+
020829 644 0.4+ 0.4+ 090923 A17 0.2+ 0.1- 091108 703 0.5+ 0.2-
090918 703 0.5+ 0.2+ 090923 A17 0.0 0.2- 091108 703 1.1- 0.1+
090918 703 0.2+ 0.3+ 090923 A17 0.3+ 0.3- 091110 704 0.4+ 0.2+
090918 703 0.5+ 0.0 090923 A17 0.2- 0.5- 091110 704 0.7+ 0.2+
090918 703 0.6- 0.0 090925 A17 0.1+ 0.3- 091110 704 0.6- 1.0+
090918 703 0.5- 0.0 090925 A17 0.0 0.6- 091110 704 0.9+ 0.2+
090918 703 0.0 0.3+ 090925 A17 0.1+ 0.5- 091110 704 0.9+ 0.7+
090918 703 0.4- 0.4+ 090930 704 (1.5+ 2.2-) 091122 932 0.6- 0.5-
090918 113 0.3- 0.3- 090930 704 0.5+ 0.3- 091122 932 0.1- 0.3-
090918 A50 0.1+ 0.9+ 090930 704 0.5+ 0.0 091122 932 0.1- 0.3+
090918 A50 0.0 0.1+ 090930 704 0.4- 0.3- 091122 448 0.7- 0.4+
090918 A50 0.7- 0.7+ 090930 704 0.6+ 0.1- 091122 448 0.7+ 0.2-
090918 113 0.3- 0.2+ 091002 J13 0.2- 0.2+ 091122 448 0.9+ 0.5+
090918 A50 0.4+ 0.2+ 091002 J13 0.3- 0.2+ 091124 703 0.8+ 0.0
090918 A50 0.2+ 0.3+ 091002 J13 0.3- 0.2+ 091124 703 0.2- 1.0-
090918 113 0.1- 0.2- 091002 J13 0.3- 0.2+ 091124 703 0.7- 0.4-
090918 113 0.1- 0.1- 091003 160 0.5+ 0.3- 091124 703 0.6+ 0.3+
Ephemeris:
2009 SX1 a,e,i = 1.72, 0.45, 8 q = 0.9525
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 11 25 12 00.65 +26 23.2 0.326 0.957 75.2 85.6 19.4
2009 12 05 12 31.08 +18 04.2 0.363 0.953 74.2 84.4 19.5
2009 12 15 12 55.34 +10 49.8 0.399 0.963 75.2 81.2 19.7
2009 12 25 13 15.65 +04 32.3 0.431 0.986 77.7 77.0 19.7
2010 01 04 13 32.87 -00 57.4 0.458 1.022 81.6 72.1 19.8
2010 01 14 13 47.02 -05 46.0 0.477 1.068 86.7 66.9 19.8
2010 01 24 13 57.48 -09 58.3 0.489 1.121 92.9 61.3 19.8
2010 02 03 14 03.45 -13 37.9 0.494 1.180 100.4 55.3 19.7
2010 02 13 14 03.93 -16 45.3 0.494 1.242 109.4 48.6 19.7
2010 02 23 13 57.89 -19 16.4 0.493 1.306 119.7 41.1 19.6
2010 03 05 13 45.09 -21 03.0 0.496 1.371 131.5 32.8 19.4
2010 03 15 13 26.52 -21 54.3 0.507 1.437 144.2 23.9 19.3
2010 03 25 13 04.99 -21 45.4 0.534 1.502 156.5 15.4 19.3
2010 04 04 12 44.38 -20 46.8 0.579 1.566 164.6 9.7 19.3
2010 04 14 12 27.79 -19 20.6 0.644 1.628 162.2 10.8 19.7
2010 04 24 12 16.77 -17 51.2 0.728 1.689 153.3 15.5 20.2
2010 05 04 12 11.32 -16 35.5 0.830 1.747 143.5 20.0 20.7
2010 05 14 12 10.65 -15 40.8 0.947 1.804 134.3 23.7 21.2
2010 05 24 12 13.85 -15 08.7 1.076 1.858 125.7 26.3 21.6
2010 06 03 12 20.04 -14 57.6 1.214 1.911 117.8 28.0 22.0
Sonia Keys (C) Copyright 2009 MPC M.P.E.C. 2009-W140
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