MPEC 2010-D44 : 2009 EF3
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M.P.E.C. 2010-D44 Issued 2010 Feb. 18, 17:54 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 EF3
Revision to MPEC 2009-F03
Additional Observations:
K09E03F KC2010 02 17.09376 05 19 15.38 -27 35 21.8 20.0 R ED044926
K09E03F C2010 02 18.09787 05 25 07.21 -26 07 12.0 21.2 R ED044926
K09E03F C2010 02 18.11449 05 25 12.73 -26 05 44.0 21.3 R ED044926
K09E03F C2010 02 18.12411 05 25 15.90 -26 04 53.9 20.7 R ED044926
Observer details:
926 Tenagra II Observatory. Observers P. R. Holvorcem, M. Schwartz. Measurer
P. R. Holvorcem. 0.81-m f/7 Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
100217 926 58.8+ 6.3- 100218 926 57.6+ 5.5- MPO157520 -0.010 day
Orbital elements:
2009 EF3 Earth MOID = 0.1964 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 34.58422 (2000.0) P Q
n 0.91752516 Peri. 210.90828 +0.87743938 -0.47954569
a 1.0488758 Node 177.65248 +0.47732915 +0.87045885
e 0.3058867 Incl. 16.54585 +0.04750801 +0.11107349
P 1.07 H 21.5 G 0.15 U 4
Residuals in seconds of arc
090315 691 0.1- 0.0 090316 G96 0.2+ 0.1+ 090327 291 0.2- 0.1-
090315 691 0.2+ 0.3- 090316 G96 0.5+ 0.9- 090327 291 0.3- 0.7-
090315 691 0.2- 0.1+ 090317 H55 0.0 0.1+ 090327 291 0.2- 0.8+
090315 291 0.3- 0.4+ 090317 H55 0.2- 0.0 090328 291 0.0 0.0
090315 291 0.4- 0.4+ 090317 H55 0.1+ 0.1+ 090328 291 0.7+ 0.1+
090315 291 0.3- 0.3+ 090317 291 0.2- 0.1+ 090328 291 0.5+ 0.3+
090315 H55 0.1+ 0.0 090317 291 0.3- 0.3+ 090331 G96 1.5+ 0.1-
090315 H55 0.3+ 0.4+ 090317 291 0.1- 0.2+ 090331 G96 0.3+ 0.4-
090315 H55 0.4+ 0.3+ 090317 J75 0.4+ 0.9- 090331 G96 0.0 0.5-
090315 J95 0.1+ 0.1+ 090317 J75 0.3- 0.6- 090331 G96 0.5+ 0.0
090316 J95 0.1+ 0.2- 090317 J75 0.2- 0.3+ 090401 G96 0.0 0.1-
090316 J95 0.1+ 0.9- 090318 204 0.1+ 0.3+ 090401 G96 0.3+ 0.3-
090316 854 0.5- 0.7+ 090318 204 0.2+ 0.2+ 090401 G96 0.1+ 0.3-
090316 673 (0.7- 1.7+) 090318 291 0.1- 0.1+ 090401 291 0.2- 1.4+
090316 854 0.2+ 1.1+ 090318 291 0.3- 0.1+ 090401 291 0.4- 0.4-
090316 673 1.0+ 1.1+ 090318 291 0.0 0.1+ 090401 291 0.1- 0.1-
090316 854 1.5+ 0.8+ 090318 G96 0.2+ 0.2- 090416 H55 0.1- 0.5-
090316 673 0.8+ 1.0+ 090318 G96 0.3+ 0.0 090416 H55 0.1- 0.0
090316 673 1.2+ 0.4- 090318 G96 0.4- 0.2- 090416 H55 0.1- 0.1-
090316 291 (1.0- 2.3+) 090318 G96 0.1- 0.3- 090417 291 0.6- 0.2+
090316 291 0.2- 0.6- 090324 291 0.0 0.1+ 090417 291 0.1+ 0.5-
090316 291 0.3+ 1.2- 090324 291 0.0 0.4+ 100217 926 0.4+ 0.2+
090316 H36 1.1+ 0.3+ 090324 291 0.2+ 0.1+ 100218 926 0.1- 0.2-
090316 H36 1.1- 0.1+ 090326 G96 0.4- 0.7- 100218 926 0.0 0.3+
090316 H36 1.1- 0.1+ 090326 G96 0.5+ 0.8- 100218 926 0.3- 0.3-
090316 G96 1.2+ 0.9- 090326 G96 0.4+ 0.4-
090316 G96 0.4- 0.3+ 090326 G96 0.0 0.2-
Ephemeris:
2009 EF3 a,e,i = 1.05, 0.31, 17 q = 0.7280
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2010 02 13 04 53.61 -33 28.3 0.243 1.042 96.3 70.3 21.0
2010 02 23 05 51.63 -18 59.6 0.258 1.093 106.9 60.0 20.9
2010 03 05 06 36.99 -05 56.6 0.296 1.140 112.9 53.3 21.1
2010 03 15 07 14.32 +03 57.5 0.353 1.183 114.0 50.1 21.5
2010 03 25 07 46.76 +10 47.1 0.425 1.222 112.2 49.1 21.9
Timothy B. Spahr (C) Copyright 2010 MPC M.P.E.C. 2010-D44
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