MPEC 2008-X67 : 2006 QR181
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M.P.E.C. 2008-X67 Issued 2008 Dec. 8, 17:06 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 QR181
Revision to MPEC 2006-W102
Additional Observations:
K06QI1R C2007 07 12.39645 00 31 46.97 +14 01 42.8 EX067304
K06QI1R C2007 07 12.45109 00 31 46.94 +14 01 43.7 EX067304
K06QI1R C2008 10 23.33819 00 31 39.22 +14 17 37.9 23.0 r EX067695
K06QI1R C2008 10 23.40014 00 31 38.93 +14 17 35.8 22.9 r EX067695
K06QI1R C2008 10 24.22652 00 31 35.32 +14 17 08.7 22.5 r EX067695
K06QI1R C2008 10 24.30257 00 31 34.99 +14 17 06.3 22.3 r EX067695
Observer details:
304 Las Campanas Observatory. Observers S. D. Kern, A. Springmann. Measurer
S. D. Kern. Baade 6.5-m telescope + CCD.
695 Kitt Peak. Observers J. W. Parker, J. Kavelaars, A. Parker. Measurer
J. W. Parker. 3.5-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
070712 304 66.7- 29.6- 081024 695 0.04- 0.02- MPO114780
Orbital elements:
2006 QR181
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 34.89189 (2000.0) P Q
n 0.00308464 Peri. 31.25921 +0.78342977 +0.60066412
a 46.7376470 Node 290.97785 -0.59962707 +0.66310456
e 0.2029489 Incl. 9.83566 -0.16335596 +0.44664858
P 320 H 7.0 G 0.15 U 5
Residuals in seconds of arc
060822 807 0.1+ 0.3+ 061020 695 0.0 0.1- 081023 695 0.1+ 0.1-
060823 807 0.1+ 0.3- 061221 695 0.3- 0.2- 081023 695 0.1- 0.1-
060823 807 0.1- 0.1- 061221 695 0.2+ 0.2+ 081024 695 0.0 0.0
061019 695 0.0 0.0 070712 304 0.1+ 0.0 081024 695 0.1+ 0.2+
061019 695 0.0 0.2+ 070712 304 0.1- 0.0
Ephemeris:
2006 QR181 a,e,i = 46.74, 0.20, 10 q = 37.252
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 11 30 00 29.57 +13 58.2 39.221 39.777 123.7 1.2 23.1
2008 12 10 00 29.33 +13 54.3 39.375 39.781 113.7 1.3 23.2
2008 12 20 00 29.25 +13 51.1 39.541 39.785 103.7 1.4 23.2
2008 12 30 00 29.34 +13 49.0 39.715 39.789 93.6 1.4 23.2
2009 01 09 00 29.59 +13 47.8 39.890 39.793 83.6 1.4 23.2
2009 01 19 00 29.99 +13 47.8 40.062 39.797 73.7 1.4 23.2
2009 01 29 00 30.55 +13 48.9 40.226 39.801 63.8 1.3 23.2
2009 02 08 00 31.25 +13 51.0 40.377 39.805 54.0 1.1 23.2
2009 02 18 00 32.06 +13 54.2 40.510 39.810 44.4 1.0 23.2
2009 02 28 00 32.97 +13 58.4 40.622 39.814 34.9 0.8 23.2
Brian G. Marsden (C) Copyright 2008 MPC M.P.E.C. 2008-X67
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