MPEC 2008-W63 : 2007 FE20
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M.P.E.C. 2008-W63 Issued 2008 Nov. 25, 14:20 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
2007 FE20
Revision to MPEC 2007-F77
Additional Observations:
K07F20E 2C2008 11 20.48772704 55 14.699+31 04 08.28 22.0 R EW063568
K07F20E 2C2008 11 20.48884104 55 14.607+31 04 08.01 22.1 R EW063568
K07F20E 2C2008 11 20.49009104 55 14.496+31 04 07.69 22.1 R EW063568
K07F20E 2C2008 11 20.49131104 55 14.392+31 04 07.46 22.1 R EW063568
K07F20E 2C2008 11 21.55575304 53 44.162+31 00 05.12 22.0 R EW063568
K07F20E 2C2008 11 21.55701404 53 44.047+31 00 04.73 22.1 R EW063568
K07F20E 2C2008 11 21.55800904 53 43.959+31 00 04.48 22.3 R EW063568
Observer details:
568 Mauna Kea. Observers G. T. Elliott, M. Micheli, D. J. Tholen. Measurer
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
081120 568 5.5+ 0.3+ 081121 568 5.6+ 0.3+ MPO121362 -0.0069 day
Orbital elements:
2007 FE20 Earth MOID = 0.3076 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 255.34205 (2000.0) P Q
n 0.42441055 Peri. 279.27852 -0.92066525 +0.36829793
a 1.7536595 Node 282.41768 -0.28546730 -0.86125998
e 0.2728371 Incl. 7.61127 -0.26624034 -0.35012554
P 2.32 H 19.8 G 0.15 U 1
Residuals in seconds of arc
070323 E12 0.2- 0.3+ 070405 E12 0.1+ 0.1- 070520 E12 0.4- 0.0
070323 E12 0.2+ 0.1- 070408 F85 0.6- 0.2+ 070520 E12 0.1- 0.6-
070323 E12 0.1+ 0.1+ 070408 F85 0.4- 0.0 070525 E12 0.1- 0.1-
070323 E12 0.3- 0.7+ 070417 E12 0.3+ 0.4- 070525 E12 0.1- 0.1+
070323 E12 0.1+ 0.8- 070417 E12 0.1+ 0.1+ 070622 E12 0.2+ 0.2+
070323 E12 0.2+ 0.6- 070417 E12 0.2+ 0.3- 070622 E12 0.2+ 0.1+
070323 E12 0.1+ 0.2- 070417 E12 0.3+ 0.0 081120 568 0.1- 0.0
070324 673 0.1+ 0.1- 070428 F85 0.7+ 0.0 081120 568 0.0 0.0
070324 673 0.1+ 0.3- 070428 F85 0.1- 0.0 081120 568 0.0 0.0
070324 673 0.1+ 0.5+ 070506 E12 0.5+ 1.7+ 081120 568 0.0 0.0
070324 673 0.1- 0.2+ 070506 E12 0.6- 0.0 081121 568 0.0 0.1+
070325 F85 0.1- 0.1- 070506 E12 0.4+ 0.7- 081121 568 0.0 0.0
070325 F85 0.2- 0.5+ 070506 E12 0.5- 0.2+ 081121 568 0.0 0.0
070405 E12 0.2- 0.3- 070520 E12 0.0 0.3-
Ephemeris:
2007 FE20 a,e,i = 1.75, 0.27, 8 q = 1.2752
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 11 20 04 55.92 +31 05.9 1.051 2.008 159.9 9.7 22.1
2008 11 30 04 40.75 +30 17.7 1.002 1.981 170.7 4.6 21.7
2008 12 10 04 24.34 +29 04.6 0.979 1.953 168.3 5.9 21.7
2008 12 20 04 09.28 +27 33.9 0.981 1.923 156.3 11.9 21.9
2008 12 30 03 57.71 +25 58.4 1.008 1.893 143.8 17.9 22.1
2009 01 09 03 50.94 +24 31.1 1.053 1.861 132.0 23.1 22.4
2009 01 19 03 49.21 +23 20.1 1.112 1.828 121.2 27.4 22.6
2009 01 29 03 52.22 +22 28.3 1.179 1.793 111.6 30.7 22.7
2009 02 08 03 59.46 +21 54.2 1.251 1.759 103.0 33.1 22.9
2009 02 18 04 10.30 +21 34.2 1.323 1.723 95.3 34.8 23.0
Gareth V. Williams (C) Copyright 2008 MPC M.P.E.C. 2008-W63
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