MPEC 2008-A15 : 2007 YU56
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M.P.E.C. 2008-A15 Issued 2008 Jan. 2, 16:07 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 YU56
Observations:
K07Y56U* C2007 12 31.47681 10 47 32.56 +03 44 37.0 19.5 V EA015703
K07Y56U C2007 12 31.48391 10 47 31.56 +03 43 35.6 19.3 V EA015703
K07Y56U C2007 12 31.49101 10 47 30.66 +03 42 33.2 19.2 V EA015703
K07Y56U C2007 12 31.49806 10 47 29.68 +03 41 33.6 19.3 V EA015703
K07Y56U C2007 12 31.50793 10 47 28.28 +03 40 09.0 19.1 V EA015703
K07Y56U C2007 12 31.50859 10 47 28.25 +03 40 01.5 19.3 V EA015703
K07Y56U C2007 12 31.50923 10 47 28.05 +03 39 57.3 19.2 V EA015703
K07Y56U C2007 12 31.50988 10 47 28.09 +03 39 51.5 18.9 V EA015703
K07Y56U C2007 12 31.54079 10 47 23.85 +03 35 24.5 20.2 V EA015703
K07Y56U C2007 12 31.54132 10 47 23.78 +03 35 20.6 19.9 V EA015703
K07Y56U C2007 12 31.54188 10 47 23.71 +03 35 15.8 19.0 V EA015703
K07Y56U C2007 12 31.54243 10 47 23.64 +03 35 11.5 19.4 V EA015703
K07Y56U C2008 01 01.02317 10 46 36.19 +02 27 01.1 19.7 V EA015A13
K07Y56U C2008 01 01.02428 10 46 36.15 +02 26 49.6 19.7 V EA015A13
K07Y56U C2008 01 01.02540 10 46 36.01 +02 26 40.2 19.5 V EA015A13
K07Y56U C2008 01 01.04388 10 46 33.69 +02 24 06.9 19.5 V EA015A13
K07Y56U C2008 01 01.04503 10 46 33.54 +02 23 57.5 19.2 V EA015A13
K07Y56U C2008 01 01.50623 10 45 41.43 +01 21 04.9 19.6 V EA015G96
K07Y56U C2008 01 01.51273 10 45 40.60 +01 20 12.1 19.3 V EA015G96
K07Y56U C2008 01 01.51921 10 45 39.70 +01 19 19.6 19.6 V EA015G96
K07Y56U C2008 01 01.52560 10 45 38.88 +01 18 28.0 19.5 V EA015G96
K07Y56U C2008 01 02.04351 10 44 47.37 +00 09 36.8 19.6 V EA015595
K07Y56U C2008 01 02.05058 10 44 46.47 +00 08 42.1 19.3 V EA015595
K07Y56U C2008 01 02.05753 10 44 45.58 +00 07 48.2 19.0 V EA015595
Observer details:
595 Farra d'Isonzo. Observers F. Piani, E. Pettarin. Measurer F. Piani.
0.40-m f/4.5 reflector + CCD.
703 Catalina Sky Survey. Observer A. R. Gibbs. Measurers E. C. Beshore,
A. Boattini, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson, R. H. McNaught. 0.68-m Schmidt + CCD.
A13 Observatoire Naef, Marly. Observer P. Kocher. 0.5-m f/3.3 Hypergraph
+ CCD.
G96 Mt. Lemmon Survey. Observer E. C. Beshore. Measurers E. C. Beshore,
A. Boattini, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson, R. H. McNaught. 1.5-m reflector + CCD.
Orbital elements:
2007 YU56 PHA, Earth MOID = 0.0485 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 346.72575 (2000.0) P Q
n 0.26617411 Peri. 163.16252 +0.05837920 -0.97312314
a 2.3934563 Node 283.06148 +0.88755061 +0.15274423
e 0.5741735 Incl. 13.21932 +0.45699648 -0.17233851
P 3.70 H 22.0 G 0.15 U 8
Residuals in seconds of arc
071231 703 0.4+ 0.2- 071231 703 0.0 0.6- 080101 A13 0.1- 0.2-
071231 703 0.0 0.2- 071231 703 0.0 0.1+ 080101 G96 0.0 0.1+
071231 703 1.0+ 1.3- 071231 703 0.1+ 0.1+ 080101 G96 0.5+ 0.1-
071231 703 0.7+ 0.0 071231 703 0.2+ 0.6+ 080101 G96 0.1- 0.2-
071231 703 0.2- 0.6+ 080101 A13 0.9- 1.3+ 080101 G96 0.2+ 0.1-
071231 703 0.7+ 1.2- 080101 A13 0.5+ 0.9- 080102 595 0.7+ 0.7-
071231 703 0.9- 0.1+ 080101 A13 0.5+ 1.0- 080102 595 0.4+ 0.2-
071231 703 1.0+ 0.1- 080101 A13 0.0 0.3- 080102 595 0.1+ 0.2+
Ephemeris:
2007 YU56 a,e,i = 2.39, 0.57, 13 q = 1.0192
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 12 26 10 58.16 +19 10.8 0.0962 1.028 114.8 60.3 19.1
2008 01 05 10 39.68 -05 38.8 0.127 1.051 119.4 54.6 19.6
2008 01 15 10 23.31 -18 24.0 0.171 1.089 124.3 48.2 20.2
2008 01 25 10 07.70 -24 24.6 0.222 1.139 129.9 41.5 20.6
2008 02 04 09 53.44 -26 36.9 0.276 1.198 135.5 35.2 21.0
2008 02 14 09 41.93 -26 27.3 0.336 1.264 140.2 30.0 21.4
2008 02 24 09 34.52 -24 53.3 0.405 1.335 143.1 26.4 21.9
Timothy B. Spahr (C) Copyright 2008 MPC M.P.E.C. 2008-A15
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