MPEC 2008-L51 : 2006 HP122
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M.P.E.C. 2008-L51 Issued 2008 June 13, 23:21 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
2006 HP122
Revision to MPEC 2006-L42
Additional Observations:
K06HC2P C2007 07 11.98142 13 57 37.83 -10 36 41.2 EL051304
K06HC2P C2007 07 12.13966 13 57 37.78 -10 36 41.8 EL051304
K06HC2P C2008 06 07.02206 14 04 24.34 -11 26 37.5 EL051807
K06HC2P C2008 06 07.08955 14 04 24.11 -11 26 36.6 EL051807
K06HC2P C2008 06 07.17949 14 04 23.80 -11 26 35.7 EL051807
K06HC2P C2008 06 09.02542 14 04 17.80 -11 26 10.9 EL051807
K06HC2P C2008 06 09.15899 14 04 17.38 -11 26 09.1 EL051807
Observer details:
304 Las Campanas Observatory. Observers S. D. Kern, A. Springmann. Measurer
S. D. Kern. Baade 6.5-m telescope IMACS CCD.
807 Cerro Tololo. Observer J.-M. Petit. Measurer J. J. Kavelaars.
4-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc and reference
070711 304 14.2- 6.4+ 080609 807 48.3- 22.2+ MPO104375
Orbital elements:
2006 HP122
Epoch 2008 May 14.0 TT = JDT 2454600.5 MPC
M 17.05666 (2000.0) P Q
n 0.00311433 Peri. 148.94795 -0.98141866 +0.16185535
a 46.4400444 Node 40.77388 -0.19179803 -0.84307470
e 0.1670841 Incl. 9.07916 +0.00556136 -0.51286245
P 316 H 7.2 G 0.15 U 4
Residuals in seconds of arc
060426 807 0.5- 0.2- 060620 304 0.1- 0.3+ 080607 807 0.1+ 0.2+
060426 807 0.1- 0.1- 060727 304 0.1+ 0.2- 080607 807 0.0 0.2-
060501 695 0.4+ 0.2- 060728 304 0.1+ 0.1- 080609 807 0.2- 0.1-
060501 695 0.1+ 0.0 070711 304 0.1- 0.0 080609 807 0.1+ 0.0
060502 695 0.0 0.3+ 070712 304 0.0 0.1-
060619 304 0.1- 0.3+ 080607 807 0.1+ 0.2+
Ephemeris:
2006 HP122 a,e,i = 46.44, 0.17, 9 q = 38.681
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 06 13 14 04.10 -11 25.4 38.504 39.172 130.6 1.1 23.3
2008 06 23 14 03.68 -11 23.8 38.642 39.174 120.9 1.3 23.3
2008 07 03 14 03.41 -11 23.1 38.794 39.176 111.3 1.4 23.3
2008 07 13 14 03.28 -11 23.2 38.957 39.177 101.8 1.5 23.3
2008 07 23 14 03.32 -11 24.1 39.126 39.179 92.3 1.5 23.3
2008 08 02 14 03.51 -11 25.8 39.296 39.181 82.8 1.5 23.3
2008 08 12 14 03.87 -11 28.4 39.462 39.183 73.3 1.4 23.3
2008 08 22 14 04.37 -11 31.8 39.621 39.184 63.8 1.3 23.3
2008 09 01 14 05.01 -11 35.9 39.766 39.186 54.3 1.2 23.3
2008 09 11 14 05.78 -11 40.6 39.896 39.188 44.8 1.0 23.3
2008 09 21 14 06.66 -11 45.8 40.005 39.190 35.3 0.8 23.3
Brian G. Marsden (C) Copyright 2008 MPC M.P.E.C. 2008-L51
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