MPEC 2008-A13 : 2007 YS56
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M.P.E.C. 2008-A13 Issued 2008 Jan. 2, 16:01 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 YS56
Observations:
K07Y56S* C2007 12 31.24562 05 10 05.66 +09 02 09.9 18.9 V EA013703
K07Y56S C2007 12 31.25296 05 10 05.41 +09 01 45.6 19.2 V EA013703
K07Y56S C2007 12 31.26030 05 10 05.05 +09 01 20.4 19.1 V EA013703
K07Y56S C2007 12 31.26763 05 10 04.72 +09 00 56.1 19.2 V EA013703
K07Y56S C2007 12 31.90948 05 10 41.70 +08 28 03.8 EA013204
K07Y56S C2007 12 31.91651 05 10 41.51 +08 27 45.1 EA013204
K07Y56S C2007 12 31.92354 05 10 41.30 +08 27 26.5 19.0 R EA013204
K07Y56S C2007 12 31.93468 05 10 40.97 +08 26 57.3 19.2 R EA013A24
K07Y56S C2007 12 31.93712 05 10 40.90 +08 26 51.1 19.4 R EA013A24
K07Y56S C2007 12 31.93955 05 10 40.86 +08 26 44.2 19.0 R EA013A24
K07Y56S C2007 12 31.94199 05 10 40.77 +08 26 37.7 19.0 R EA013A24
K07Y56S C2008 01 01.28767 05 10 55.41 +08 13 05.8 19.9 V EA013G96
K07Y56S C2008 01 01.30131 05 10 54.87 +08 12 32.6 19.4 V EA013G96
K07Y56S C2008 01 01.30585 05 10 53.79 +08 12 20.2 20.4 R EA013448
K07Y56S C2008 01 01.30812 05 10 54.62 +08 12 16.1 19.7 V EA013G96
K07Y56S C2008 01 01.84133 05 11 26.31 +07 52 20.2 20.0 V EA013595
K07Y56S C2008 01 01.85477 05 11 26.07 +07 51 54.3 19.8 V EA013595
K07Y56S C2008 01 01.88811 05 11 25.97 +07 50 37.3 19.3 V EA013A17
K07Y56S C2008 01 01.89780 05 11 25.72 +07 50 18.9 19.6 V EA013A17
K07Y56S C2008 01 01.90636 05 11 25.48 +07 50 02.4 19.3 V EA013A17
Observer details:
204 Schiaparelli Observatory. Observer L. Buzzi. 0.60-m f/4.64 reflector
+ CCD.
448 Desert Moon Observatory. Observer B. L. Stevens. 0.3-m
Schmidt-Cassegrain + CCD.
595 Farra d'Isonzo. Observers G. Lombardi, E. Pettarin. Measurer G. Lombardi.
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.
A17 Guidestar Observatory, Weinheim. Observers M. Emmerich, S. Melchert.
0.36-m f/6 Schmidt-Cassegrain + CCD.
A24 New Millennium Observatory, Mozzate. Observer E. Cozzi. 0.36-m f/7.6
Schmidt-Cassegrain + 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 YS56 Earth MOID = 0.0030 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 18.54475 (2000.0) P Q
n 1.08232726 Peri. 62.79514 +0.92012649 +0.37776365
a 0.9395004 Node 274.85778 -0.38587468 +0.82954057
e 0.2892269 Incl. 5.94816 -0.06684292 +0.41128708
P 0.91 H 25.6 G 0.15 U 8
Residuals in seconds of arc
071231 703 0.7- 0.3- 071231 A24 0.4+ 0.3- 080101 G96 0.6- 0.2+
071231 703 0.5+ 0.1+ 071231 A24 0.4+ 0.0 080101 595 0.5- 0.4+
071231 703 0.1+ 0.3- 071231 A24 0.7+ 0.5- 080101 595 0.8+ 0.5+
071231 703 0.1+ 0.1+ 071231 A24 0.4+ 0.4- 080101 A17 0.6+ 0.7-
071231 204 0.2+ 0.2- 080101 G96 0.3- 0.5+ 080101 A17 0.1+ 0.3-
071231 204 0.3+ 0.2- 080101 G96 0.6- 0.2+ 080101 A17 0.7- 0.2-
071231 204 0.1+ 0.1- 080101 448 0.6- 0.6-
Ephemeris:
2007 YS56 a,e,i = 0.94, 0.29, 6 q = 0.6678
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 12 26 03 49.84 +58 42.7 0.00345 0.986 136.2 43.6 14.9
2007 12 27 04 53.77 +24 59.5 0.00779 0.991 160.2 19.7 16.0
2007 12 28 05 02.89 +16 19.7 0.0129 0.995 159.5 20.3 17.2
2007 12 29 05 06.55 +12 37.1 0.0182 1.000 157.6 22.0 18.0
2007 12 30 05 08.55 +10 35.1 0.0235 1.005 156.1 23.4 18.6
2007 12 31 05 09.84 +09 18.7 0.0289 1.009 154.7 24.6 19.1
2008 01 01 05 10.76 +08 26.7 0.0342 1.014 153.5 25.6 19.5
2008 01 02 05 11.48 +07 49.5 0.0396 1.019 152.5 26.5 19.8
2008 01 03 05 12.08 +07 21.9 0.0450 1.023 151.5 27.3 20.1
2008 01 04 05 12.60 +07 00.9 0.0505 1.028 150.5 28.1 20.4
2008 01 05 05 13.09 +06 44.7 0.0559 1.032 149.6 28.8 20.7
2008 01 06 05 13.55 +06 32.0 0.0614 1.036 148.8 29.5 20.9
2008 01 07 05 13.99 +06 22.1 0.0669 1.041 147.9 30.1 21.1
2008 01 08 05 14.44 +06 14.4 0.0724 1.045 147.1 30.8 21.3
2008 01 09 05 14.90 +06 08.5 0.0779 1.049 146.2 31.4 21.5
2008 01 10 05 15.37 +06 04.0 0.0835 1.053 145.4 32.0 21.7
2008 01 11 05 15.85 +06 00.7 0.0891 1.057 144.6 32.6 21.8
2008 01 12 05 16.36 +05 58.5 0.0947 1.061 143.8 33.1 22.0
2008 01 13 05 16.88 +05 57.1 0.100 1.065 143.1 33.7 22.2
2008 01 14 05 17.43 +05 56.5 0.106 1.069 142.3 34.2 22.3
2008 01 15 05 18.00 +05 56.6 0.112 1.073 141.5 34.8 22.4
Timothy B. Spahr (C) Copyright 2008 MPC M.P.E.C. 2008-A13
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