MPEC 2008-A09 : 2007 YO56
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M.P.E.C. 2008-A09 Issued 2008 Jan. 2, 15:48 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 YO56
Observations:
K07Y56O* C2007 12 30.34141 08 25 42.33 +18 27 31.4 21.1 V EA009691
K07Y56O C2007 12 30.35905 08 25 40.31 +18 27 21.5 21.3 V EA009691
K07Y56O C2007 12 30.37670 08 25 38.26 +18 27 10.5 20.7 V EA009691
K07Y56O C2007 12 30.43749 08 25 31.27 +18 26 36.9 21.5 V EA009291
K07Y56O C2007 12 30.44160 08 25 30.83 +18 26 34.6 21.4 V EA009291
K07Y56O C2007 12 30.44553 08 25 30.40 +18 26 32.9 21.2 V EA009291
K07Y56O C2007 12 30.45252 08 25 29.64 +18 26 27.6 21.6 V EA009G96
K07Y56O C2007 12 30.46086 08 25 28.70 +18 26 23.1 20.9 V EA009G96
K07Y56O C2007 12 30.46923 08 25 27.76 +18 26 19.3 21.7 V EA009G96
K07Y56O C2007 12 30.47756 08 25 26.79 +18 26 13.5 21.2 V EA009G96
K07Y56O C2007 12 30.51504 08 25 22.47 +18 25 52.1 21.3 V EA009G96
K07Y56O C2007 12 30.52409 08 25 21.39 +18 25 46.6 21.3 V EA009G96
K07Y56O C2007 12 30.53315 08 25 20.38 +18 25 40.9 21.6 V EA009G96
K07Y56O C2007 12 30.54223 08 25 19.38 +18 25 36.4 21.6 V EA009G96
K07Y56O C2007 12 31.22553 08 24 03.97 +18 19 06.7 EA009291
K07Y56O C2007 12 31.23519 08 24 02.87 +18 19 01.0 EA009291
K07Y56O C2007 12 31.23906 08 24 02.39 +18 18 58.9 EA009291
K07Y56O C2008 01 01.36712 08 21 50.98 +18 08 08.1 21.2 V EA009291
K07Y56O C2008 01 01.37121 08 21 50.47 +18 08 05.7 21.0 V EA009291
K07Y56O C2008 01 01.37535 08 21 49.94 +18 08 03.0 21.1 V EA009291
Observer details:
291 LPL/Spacewatch II. Observers T. H. Bressi, R. S. McMillan. 1.8-m f/2.7
reflector + CCD.
691 Steward Observatory, Kitt Peak. Observer T. H. Bressi. 0.9-m f/3
reflector + CCD.
G96 Mt. Lemmon Survey. Observer R. A. Kowalski. 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 YO56 Earth MOID = 0.1691 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 196.45360 (2000.0) P Q
n 0.66617445 Peri. 331.39651 -0.16220841 +0.94730002
a 1.2984067 Node 288.12577 -0.84093048 -0.27917704
e 0.3921700 Incl. 16.89800 -0.51625997 +0.15710777
P 1.48 H 20.1 G 0.15 U 9
Residuals in seconds of arc
071230 691 0.2+ 0.1+ 071230 G96 0.9+ 0.2- 071231 291 0.1- 0.2+
071230 691 0.1+ 0.1+ 071230 G96 1.2+ 0.8+ 071231 291 0.2+ 0.2-
071230 691 0.3- 0.9- 071230 G96 0.9+ 0.2- 071231 291 0.2- 0.1-
071230 291 0.7- 0.0 071230 G96 0.2+ 0.2+ 080101 291 0.2+ 0.1+
071230 291 0.2- 0.1+ 071230 G96 0.5- 0.1- 080101 291 0.1+ 0.1+
071230 291 0.1+ 0.7+ 071230 G96 0.3- 0.5- 080101 291 0.2- 0.2-
071230 G96 0.7+ 0.5- 071230 G96 0.1+ 0.3+
Ephemeris:
2007 YO56 a,e,i = 1.30, 0.39, 17 q = 0.7892
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 12 26 08 32.96 +19 07.2 0.763 1.680 147.9 18.1 21.6
2008 01 05 08 14.22 +17 31.8 0.684 1.647 161.9 10.7 21.0
2008 01 15 07 49.25 +15 40.3 0.630 1.612 174.2 3.5 20.5
2008 01 25 07 21.29 +13 34.2 0.604 1.572 163.4 10.3 20.6
2008 02 04 06 54.96 +11 25.4 0.603 1.529 147.5 20.3 20.9
2008 02 14 06 34.21 +09 28.6 0.624 1.483 132.6 29.4 21.2
2008 02 24 06 20.87 +07 51.8 0.658 1.433 119.5 37.0 21.5
2008 03 05 06 14.73 +06 34.6 0.696 1.379 108.3 43.1 21.7
2008 03 15 06 14.86 +05 31.6 0.734 1.323 98.8 48.0 21.8
2008 03 25 06 20.07 +04 35.7 0.764 1.263 90.6 52.1 21.9
2008 04 04 06 29.28 +03 41.3 0.785 1.201 83.7 55.8 22.0
Timothy B. Spahr (C) Copyright 2008 MPC M.P.E.C. 2008-A09
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