MPEC 2008-Y18 : 2005 FL4
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M.P.E.C. 2008-Y18 Issued 2008 Dec. 20, 22:23 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 FL4
Revision to MPEC 2005-G05
Additional Observations:
K05F04L C2008 12 19.85856 06 46 31.90 +43 47 44.8 21.2 C EY018493
K05F04L C2008 12 19.86645 06 46 31.16 +43 47 49.1 20.8 C EY018493
K05F04L C2008 12 19.87432 06 46 30.43 +43 47 53.2 21.1 C EY018493
K05F04L C2008 12 20.86711 06 44 57.94 +43 55 51.5 21.4 C EY018493
K05F04L C2008 12 20.87468 06 44 57.30 +43 55 54.6 21.3 C EY018493
Observer details:
493 Calar Alto. Observer F. Hormuth. 1.23-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
081219 493 32.5- 13.5- 081220 493 31.9- 13.6- MPO 87662 +0.058 day
Orbital elements:
2005 FL4 Earth MOID = 0.2547 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 291.06583 (2000.0) P Q
n 0.22614576 Peri. 176.53037 -0.44047819 +0.78501633
a 2.6681511 Node 66.91091 -0.83466090 -0.17940093
e 0.7153213 Incl. 28.26225 -0.33063598 -0.59292889
P 4.36 H 16.9 G 0.15 U 1
Residuals in seconds of arc
050330 704 0.1- 0.6- 050401 704 0.4- 0.5+ 050418 J92 0.0 0.3+
050330 704 0.5+ 0.4- 050401 704 0.4- 0.2- 050418 J92 0.1- 0.1-
050330 704 0.1+ 0.7- 050401 704 0.0 0.8- 050501 448 0.1- 0.3+
050330 704 0.2- 0.1+ 050403 469 0.0 0.2- 050501 448 0.2- 0.0
050331 704 0.4- 0.5+ 050403 469 0.1+ 0.0 050501 448 0.1+ 0.3+
050331 704 0.5+ 0.8+ 050403 469 0.4+ 0.0 050619 474 0.1- 0.2-
050331 704 0.0 0.2- 050403 469 0.2- 0.2+ 050619 474 0.1- 0.2+
050331 704 0.2+ 0.2+ 050403 084 0.1+ 0.1- 050619 474 0.1+ 0.2+
050331 651 0.0 0.2+ 050403 084 0.1- 0.0 050919 413 0.1+ 0.1+
050331 651 0.1+ 0.3- 050406 A83 0.5+ 0.3+ 050920 413 0.3- 0.2+
050331 651 0.1- 0.3+ 050406 A83 0.0 0.6- 081219 493 0.1- 0.3-
050331 704 0.1+ 0.2+ 050406 084 0.5- 0.4- 081219 493 0.2- 0.1+
050331 118 0.2+ 0.6- 050406 084 0.4+ 0.4+ 081219 493 0.1- 0.3+
050331 118 0.0 0.3+ 050407 A83 0.2+ 0.4+ 081220 493 0.4- 0.5+
050331 118 0.7- 0.4- 050407 A83 0.2- 0.4+ 081220 493 0.5+ 0.1-
050331 118 0.1- 0.1+ 050407 A83 0.3+ 0.2+
050401 704 0.0 0.0 050407 A83 0.0 0.2+
Ephemeris:
2005 FL4 a,e,i = 2.67, 0.72, 28 q = 0.7596
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 12 20 06 46.31 +43 48.9 2.206 3.135 156.8 7.1 21.6
2008 12 30 06 29.70 +44 59.9 2.137 3.072 158.1 6.9 21.5
2009 01 09 06 11.79 +45 46.5 2.100 3.007 152.5 8.7 21.5
2009 01 19 05 54.44 +46 05.8 2.094 2.940 143.1 11.6 21.6
2009 01 29 05 39.41 +46 00.6 2.113 2.872 132.5 14.7 21.6
2009 02 08 05 28.01 +45 38.0 2.153 2.801 121.8 17.4 21.7
2009 02 18 05 20.83 +45 06.0 2.207 2.728 111.5 19.7 21.8
2009 02 28 05 17.92 +44 31.1 2.270 2.654 101.7 21.4 21.8
2009 03 10 05 19.04 +43 57.9 2.334 2.577 92.5 22.6 21.9
2009 03 20 05 23.78 +43 28.5 2.397 2.498 84.0 23.4 21.9
2009 03 30 05 31.75 +43 03.1 2.453 2.417 76.1 23.7 21.9
2009 04 09 05 42.60 +42 41.1 2.500 2.333 68.8 23.6 21.8
2009 04 19 05 56.01 +42 20.7 2.536 2.247 62.0 23.3 21.8
Gareth V. Williams (C) Copyright 2008 MPC M.P.E.C. 2008-Y18
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