MPEC 2010-D58 : 2005 YU55
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M.P.E.C. 2010-D58 Issued 2010 Feb. 21, 02:39 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 YU55
Revision to MPEC 2005-Y47
Additional Observations:
K05Y55U 2C2010 02 09.63719113 18 47.886-07 19 49.12 22.7 R ED058568
K05Y55U 2C2010 02 09.63868113 18 47.968-07 19 49.64 22.3 R ED058568
K05Y55U 2C2010 02 20.53683813 30 24.289-08 22 04.12 22.4 R ED058568
K05Y55U 2C2010 02 20.54110513 30 24.508-08 22 05.40 22.6 R ED058568
Observer details:
568 Mauna Kea. Observers T. George, M. Micheli, G. T. Elliott, D. J. Tholen.
Measurers M. Micheli, D. J. Tholen. 2.24-m University of Hawaii reflector,
3.6-m Canada-France-Hawaii Telescope.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
100209 568 0.16+ 0.07- 100220 568 0.22+ 0.09- MPO 98041 -0.13 day
Orbital elements:
2005 YU55 PHA, Earth MOID = 0.0011 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 224.27981 (2000.0) P Q
n 0.80909599 Peri. 268.88966 +0.62003986 +0.78455009
a 1.1406070 Node 39.43121 -0.71625652 +0.56896725
e 0.4289307 Incl. 0.50809 -0.32019864 +0.24649020
P 1.22 H 21.9 G 0.15 U 4
Residuals in seconds of arc
051224 691 0.1+ 0.6- 051230 696 0.1+ 0.2+ 060106 291 (1.6+ 0.5-)
051224 691 0.3+ 0.9- 051231 696 0.2- 0.8+ 060107 291 0.3- 0.9-
051224 691 0.2- 1.1- 051231 696 0.0 0.1+ 060107 291 0.4+ 0.8+
051228 691 1.1- 0.1+ 060104 291 0.1- 0.0 060107 291 0.9+ 0.1-
051228 691 0.1- 0.3- 060104 291 0.1+ 1.0- 060109 291 (1.3- 2.5+)
051228 691 1.0+ 0.1+ 060104 568 0.2+ 0.1+ 060109 291 (0.7- 1.7+)
051228 291 0.3- 0.4- 060104 568 0.1+ 0.1+ 060109 291 (0.7- 2.1+)
051228 291 0.9- 0.1- 060104 568 0.0 0.1+ 060123 291 1.3- 0.1+
051228 291 (0.0 2.2-) 060105 291 (1.9+ 0.3+) 060123 291 (2.0+ 0.2+)
051229 734 0.2+ 1.1+ 060105 291 0.7+ 0.4- 060123 291 0.9- 0.1-
051229 291 0.9- 0.1+ 060105 291 1.4- 0.4+ 100209 568 0.2+ 0.0
051229 291 0.1- 0.3+ 060105 F65 0.0 0.3+ 100209 568 0.1- 0.0
051229 291 0.6- 0.5+ 060105 F65 1.2- 0.3+ 100220 568 0.0 0.0
051229 734 0.4+ 1.1- 060105 F65 0.3+ 0.6+ 100220 568 0.0 0.0
051229 734 0.3- 0.4+ 060106 291 0.8+ 0.1+
051230 696 0.3+ 0.4- 060106 291 0.5+ 0.8-
Ephemeris:
2005 YU55 a,e,i = 1.14, 0.43, 1 q = 0.6514
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2010 02 13 13 22.61 -07 40.6 0.614 1.413 122.1 36.3 23.1
2010 02 23 13 32.70 -08 33.7 0.501 1.364 129.5 34.0 22.5
2010 03 05 13 40.59 -09 11.6 0.394 1.310 137.5 30.8 21.8
2010 03 15 13 45.50 -09 29.6 0.296 1.251 146.2 26.2 20.9
2010 03 25 13 46.00 -09 18.6 0.205 1.187 156.1 19.9 19.8
2010 04 04 13 38.40 -08 10.5 0.121 1.119 168.0 10.7 18.2
2010 04 14 12 54.07 -02 12.9 0.0446 1.047 169.0 10.5 15.9
2010 04 24 03 36.45 +20 54.4 0.0373 0.971 23.3 155.9 24.4
Gareth V. Williams (C) Copyright 2010 MPC M.P.E.C. 2010-D58
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