MPEC 2008-Y49 : 2008 JY30
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M.P.E.C. 2008-Y49 Issued 2008 Dec. 24, 04:01 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
2008 JY30
Revision to MPEC 2008-J79
Additional Observations:
K08J30Y C2008 12 23.18402 10 20 49.57 +24 34 12.1 22.0 C EY049493
K08J30Y C2008 12 23.19858 10 20 48.80 +24 34 18.8 22.5 C EY049493
K08J30Y C2008 12 23.21316 10 20 48.11 +24 34 25.7 22.3 C EY049493
K08J30Y C2008 12 24.11200 10 20 04.48 +24 41 24.4 21.8 C EY049493
K08J30Y C2008 12 24.13826 10 20 03.10 +24 41 37.1 22.2 C EY049493
Observer details:
493 Calar Alto. Observer F. Hormuth. 1.23-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
081223 493 46.2- 39.0+ 081224 493 47.4- 39.7+ MPO140222 -0.0049 day
Orbital elements:
2008 JY30 Earth MOID = 0.1770 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 36.90868 (2000.0) P Q
n 0.26970526 Peri. 345.05905 +0.98104858 +0.19334222
a 2.3725194 Node 3.86172 -0.15263448 +0.81166198
e 0.7593219 Incl. 10.90935 -0.11935825 +0.55120198
P 3.65 H 18.6 G 0.15 U 4
Residuals in seconds of arc
080514 E12 0.2- 0.4+ 080518 F85 0.2+ 0.2- 080530 807 0.3- 0.1+
080514 E12 0.0 0.2+ 080518 F85 0.0 0.5- 080530 807 0.2- 0.0
080514 E12 0.6+ 0.2+ 080520 F85 0.1+ 0.5+ 080530 807 0.1+ 0.4+
080514 E12 0.2+ 0.3+ 080520 F85 0.0 0.2- 080530 807 0.0 0.5+
080514 E12 0.1- 0.4+ 080520 F85 0.3- 0.4- 080530 807 0.1- 0.1+
080514 E12 0.2- 0.2+ 080524 F85 0.1+ 0.2- 080530 807 0.4- 0.0
080514 E12 0.1+ 0.2+ 080524 F85 0.1+ 0.2- 080530 807 0.4- 0.0
080514 E12 0.0 0.2+ 080524 F85 0.6+ 0.1+ 080530 807 0.3+ 0.3+
080514 E12 0.2+ 0.0 080525 E12 0.4- 0.6- 080530 807 0.4- 0.2-
080514 E12 0.1+ 0.1+ 080525 E12 0.0 0.3- 081223 493 0.4+ 0.2-
080515 F85 0.1- 0.2- 080525 E12 0.2- 0.3- 081223 493 0.3- 0.2-
080515 F85 0.2+ 0.3- 080528 F85 0.0 0.2- 081223 493 0.2+ 0.0
080515 F85 0.3- 0.3- 080528 F85 0.1+ 0.4- 081224 493 0.1- 0.1+
080518 F85 0.0 0.1- 080528 F85 0.9+ 0.1+ 081224 493 0.3- 0.4+
Ephemeris:
2008 JY30 a,e,i = 2.37, 0.76, 11 q = 0.5710
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 12 20 10 23.14 +24 10.4 1.590 2.237 118.8 22.7 22.4
2008 12 30 10 14.46 +25 29.4 1.560 2.325 130.8 18.7 22.4
2009 01 09 10 01.85 +26 55.2 1.549 2.410 143.3 14.1 22.3
2009 01 19 09 46.12 +28 16.4 1.563 2.492 155.5 9.4 22.2
2009 01 29 09 28.70 +29 21.7 1.607 2.571 165.0 5.7 22.1
2009 02 08 09 11.46 +30 02.9 1.684 2.648 164.6 5.7 22.3
2009 02 18 08 56.13 +30 18.6 1.792 2.721 155.4 8.7 22.6
2009 02 28 08 43.88 +30 12.1 1.928 2.793 144.2 12.0 23.0
Gareth V. Williams (C) Copyright 2008 MPC M.P.E.C. 2008-Y49
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