MPEC 2008-A07 : 2007 YM56
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M.P.E.C. 2008-A07 Issued 2008 Jan. 2, 15:41 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 YM56
Observations:
K07Y56M* C2007 12 30.29391 07 52 08.50 +16 55 42.9 20.9 V EA007691
K07Y56M C2007 12 30.31153 07 52 06.56 +16 55 27.7 20.8 V EA007691
K07Y56M C2007 12 30.32916 07 52 04.61 +16 55 11.5 21.0 V EA007691
K07Y56M HC2007 12 30.44997 07 51 51.38 +16 53 22.6 EA007291
K07Y56M HC2007 12 30.45393 07 51 50.91 +16 53 19.4 EA007291
K07Y56M HC2007 12 30.45775 07 51 50.49 +16 53 15.0 EA007291
K07Y56M C2007 12 31.24409 07 50 31.02 +16 41 25.5 EA007291
K07Y56M C2007 12 31.24822 07 50 30.54 +16 41 22.5 EA007291
K07Y56M HC2008 01 01.34445 07 48 30.12 +16 24 28.9 EA007291
K07Y56M C2008 01 01.34880 07 48 29.65 +16 24 24.4 EA007291
K07Y56M C2008 01 01.35318 07 48 29.07 +16 24 20.2 EA007291
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.
Orbital elements:
2007 YM56 PHA, Earth MOID = 0.0294 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 232.62912 (2000.0) P Q
n 0.70618229 Peri. 306.53995 -0.75814513 +0.64236086
a 1.2488919 Node 273.71036 -0.55657560 -0.72710076
e 0.3140794 Incl. 6.45565 -0.33976400 -0.24227468
P 1.40 H 21.8 G 0.15 U 9
Residuals in seconds of arc
071230 691 0.3+ 0.5+ 071230 291 0.1- 0.0 080101 291 0.4- 0.3+
071230 691 0.0 0.7+ 071230 291 0.2- 1.0- 080101 291 0.5+ 0.1-
071230 691 0.3- 0.0 071231 291 0.1+ 0.1- 080101 291 0.1- 0.2-
071230 291 0.4+ 0.5- 071231 291 0.1- 0.5+
Ephemeris:
2007 YM56 a,e,i = 1.25, 0.31, 6 q = 0.8566
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 12 26 07 58.42 +17 56.0 0.375 1.334 155.5 17.8 21.2
2008 01 05 07 41.00 +15 24.5 0.311 1.289 167.9 9.2 20.4
2008 01 15 07 14.10 +12 06.9 0.262 1.241 168.4 9.2 20.0
2008 01 25 06 40.48 +08 01.9 0.229 1.192 152.0 22.8 20.1
2008 02 04 06 05.55 +03 30.7 0.211 1.141 133.5 38.8 20.3
2008 02 14 05 34.57 -00 56.8 0.202 1.090 115.8 54.6 20.5
2008 02 24 05 09.05 -05 12.3 0.195 1.040 99.7 69.7 20.8
2008 03 05 04 46.15 -09 27.0 0.188 0.992 84.7 84.4 21.1
2008 03 15 04 20.57 -13 57.4 0.178 0.949 70.1 99.7 21.6
Timothy B. Spahr (C) Copyright 2008 MPC M.P.E.C. 2008-A07
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