MPEC 2007-N11 : 2006 HW122
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M.P.E.C. 2007-N11 Issued 2007 July 3, 23:33 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 HW122
Revision to MPEC 2006-L42
Additional Observations:
K06HC2W &C2007 04 21.19885 15 11 09.47 -17 54 22.8 21.3 R EN011807
K06HC2W &C2007 04 22.26735 15 11 04.77 -17 54 04.0 EN011807
Observer details:
807 Cerro Tololo. Observer L. H. Wasserman. 4.02-m f/2.87 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc and reference
070421 807 13.3- 3.9+ 070422 807 13.6- 4.6+ MPO111170
Orbital elements:
2006 HW122
Eccentricity assumed
Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 MPC
M 4.52881 (2000.0) P Q
n 0.00320200 Peri. 178.69377 -0.70862280 +0.70532310
a 45.5884437 Node 46.18278 -0.64760636 -0.63928161
e 0.0394602 Incl. 1.53388 -0.28010663 -0.30633045
P 308 H 6.1 G 0.15
Residuals in seconds of arc
060427 807 0.2+ 0.0 060620 304 0.8- 0.2+ 070421 807 0.1+ 0.3-
060427 807 0.1+ 0.2+ 060821 807 0.2+ 0.3- 070422 807 0.1- 0.4+
060428 807 0.0 0.0 060822 807 0.5+ 0.5-
060620 304 0.6- 0.2+ 060823 807 0.4+ 0.2+
Ephemeris:
2006 HW122 a,e,i = 45.59, 0.04, 2 q = 43.790
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 06 29 15 06.35 -17 35.5 43.106 43.796 132.3 1.0 22.6
2007 07 09 15 05.94 -17 33.8 43.240 43.796 122.6 1.1 22.7
2007 07 19 15 05.66 -17 32.7 43.389 43.796 113.0 1.2 22.7
2007 07 29 15 05.52 -17 32.2 43.549 43.797 103.4 1.3 22.7
2007 08 08 15 05.54 -17 32.3 43.716 43.797 93.9 1.3 22.7
2007 08 18 15 05.70 -17 33.0 43.885 43.797 84.3 1.3 22.7
2007 08 28 15 06.01 -17 34.3 44.051 43.797 74.8 1.3 22.7
2007 09 07 15 06.46 -17 36.2 44.210 43.797 65.2 1.2 22.7
2007 09 17 15 07.05 -17 38.6 44.357 43.797 55.6 1.1 22.7
2007 09 27 15 07.77 -17 41.5 44.487 43.797 46.0 0.9 22.7
2007 10 07 15 08.58 -17 44.8 44.598 43.797 36.4 0.8 22.7
Brian G. Marsden (C) Copyright 2007 MPC M.P.E.C. 2007-N11
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