MPEC 2008-A12 : 2007 YR56
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M.P.E.C. 2008-A12 Issued 2008 Jan. 2, 15:56 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 YR56
Observations:
K07Y56R* C2007 12 31.20273 04 15 58.94 +25 39 03.5 EA012G96
K07Y56R C2007 12 31.21037 04 16 13.88 +25 43 27.6 EA012G96
K07Y56R C2007 12 31.21806 04 16 28.92 +25 47 50.8 19.1 V EA012G96
K07Y56R C2007 12 31.25244 04 17 36.38 +26 07 24.6 19.5 V EA012G96
K07Y56R C2007 12 31.25268 04 17 36.88 +26 07 33.3 19.6 V EA012G96
K07Y56R C2007 12 31.25293 04 17 37.39 +26 07 41.8 19.3 V EA012G96
K07Y56R C2007 12 31.25318 04 17 37.86 +26 07 50.3 19.2 V EA012G96
K07Y56R C2007 12 31.29760 04 19 05.52 +26 32 46.3 18.9 V EA012G96
K07Y56R C2007 12 31.29785 04 19 06.02 +26 32 55.1 19.2 V EA012G96
K07Y56R C2007 12 31.29808 04 19 06.49 +26 33 02.7 19.9 V EA012G96
K07Y56R C2007 12 31.29831 04 19 06.88 +26 33 11.0 18.5 V EA012G96
K07Y56R C2007 12 31.87518 04 39 40.26 +31 39 26.5 19.5 R EA012204
K07Y56R C2007 12 31.87996 04 39 49.96 +31 41 50.2 EA012204
Observer details:
204 Schiaparelli Observatory. Observers L. Buzzi, F. Luppi. Measurer
L. Buzzi. 0.60-m f/4.64 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 YR56 Earth MOID = 0.0165 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 344.21361 (2000.0) P Q
n 0.34919070 Peri. 335.91237 +0.27677895 -0.94443364
a 1.9972278 Node 97.63010 +0.90813339 +0.19675762
e 0.5123164 Incl. 10.30529 +0.31414513 +0.26330882
P 2.82 H 25.9 G 0.15 U 7
Residuals in seconds of arc
071231 G96 0.0 0.5- 071231 G96 0.5+ 0.4+ 071231 G96 0.7- 0.4+
071231 G96 0.2- 0.5+ 071231 G96 0.3+ 0.4+ 071231 204 0.3- 0.2-
071231 G96 0.4- 0.5- 071231 G96 0.0 0.6- 071231 204 0.3+ 0.2+
071231 G96 0.1- 0.2- 071231 G96 0.0 0.1-
071231 G96 0.3+ 0.4+ 071231 G96 0.2+ 0.2-
Ephemeris:
2007 YR56 a,e,i = 2.00, 0.51, 10 q = 0.9740
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 12 26 01 55.07 -21 19.9 0.0340 0.991 102.3 75.8 21.2
2007 12 27 02 15.12 -14 58.7 0.0304 0.994 108.8 69.5 20.7
2007 12 28 02 38.43 -06 57.9 0.0275 0.996 116.9 61.6 20.3
2007 12 29 03 05.27 +02 39.8 0.0256 0.999 126.5 52.3 19.9
2007 12 30 03 35.62 +13 16.7 0.0249 1.002 136.7 42.3 19.5
2007 12 31 04 08.92 +23 41.1 0.0255 1.005 145.8 33.4 19.3
2008 01 01 04 44.04 +32 41.6 0.0274 1.008 152.2 27.1 19.3
2008 01 02 05 19.40 +39 42.7 0.0303 1.011 155.0 24.3 19.5
2008 01 03 05 53.32 +44 46.9 0.0339 1.014 155.1 24.1 19.7
2008 01 04 06 24.49 +48 16.5 0.0381 1.018 153.8 25.3 20.0
2008 01 05 06 52.20 +50 36.6 0.0427 1.021 152.1 26.8 20.3
2008 01 06 07 16.25 +52 08.4 0.0476 1.025 150.4 28.3 20.6
2008 01 07 07 36.85 +53 07.3 0.0527 1.029 148.9 29.6 20.9
2008 01 08 07 54.37 +53 44.3 0.0579 1.033 147.7 30.6 21.1
2008 01 09 08 09.25 +54 06.3 0.0633 1.037 146.7 31.4 21.3
2008 01 10 08 21.89 +54 18.3 0.0688 1.041 145.9 32.0 21.5
2008 01 11 08 32.67 +54 23.4 0.0743 1.045 145.2 32.4 21.7
2008 01 12 08 41.90 +54 23.8 0.0799 1.050 144.8 32.7 21.9
2008 01 13 08 49.83 +54 20.9 0.0856 1.054 144.4 32.9 22.1
2008 01 14 08 56.67 +54 15.6 0.0914 1.059 144.1 33.0 22.2
2008 01 15 09 02.60 +54 08.7 0.0972 1.064 143.9 33.0 22.4
Timothy B. Spahr (C) Copyright 2008 MPC M.P.E.C. 2008-A12
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