MPEC 2007-D43 : 2006 QR89
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M.P.E.C. 2007-D43 Issued 2007 Feb. 22, 13:14 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://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2006 QR89
Revision to MPEC 2006-Q54
Additional Observations:
K06Q89R C2002 01 10.50285 09 49 26.53 -07 47 29.7 19.2 R ED043644
K06Q89R C2002 01 10.51321 09 49 26.37 -07 47 22.6 19.4 R ED043644
K06Q89R C2002 01 10.52486 09 49 26.20 -07 47 14.7 19.3 R ED043644
K06Q89R C2002 02 17.25358 09 24 33.52 +05 16 09.3 18.9 R ED043644
K06Q89R C2002 02 17.27573 09 24 32.52 +05 16 40.6 19.1 R ED043644
K06Q89R C2002 03 05.27946 09 18 21.55 +10 33 26.6 19.4 R ED043644
K06Q89R C2002 03 05.30095 09 18 21.34 +10 33 47.8 20.1 R ED043644
K06Q89R C2002 03 13.18924 09 18 51.42 +12 25 41.8 20.5 R ED043644
K06Q89R C2002 03 13.21008 09 18 51.60 +12 25 57.1 19.8 R ED043644
K06Q89R C2002 03 13.23097 09 18 51.74 +12 26 12.6 20.4 R ED043644
K06Q89R C2002 03 14.21295 09 19 05.52 +12 38 00.1 20.4 R ED043644
K06Q89R C2002 03 14.22347 09 19 05.64 +12 38 07.6 20.4 R ED043644
K06Q89R HC2007 02 22.11533 03 18 32.38 +07 34 56.8 ED043291
K06Q89R HC2007 02 22.11956 03 18 33.45 +07 35 01.9 ED043291
Observer details:
291 LPL/Spacewatch II. Observer J. V. Scotti. 1.8-m f/2.7 reflector + CCD.
644 Palomar Mountain/NEAT. Observers E. F. Helin, S. Pravdo, K. Lawrence,
K. Kuluhiwa, M. Hicks. Measurer R. Matson. 1.2-m Schmidt + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
020110 644 0.10- 0.01- 070222 291 1.8- 0.2- MPO111196 +0.0019 day
Orbital elements:
2006 QR89 Earth MOID = 0.2704 AU
Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 MPC
M 31.26304 (2000.0) P Q
n 0.37962864 Peri. 263.41981 +0.33909049 -0.94001548
a 1.8889918 Node 166.57649 +0.91406418 +0.31984373
e 0.3675932 Incl. 9.23682 +0.22249565 +0.11862081
P 2.60 H 19.9 G 0.15 U 2
Residuals in seconds of arc
020110 644 0.3+ 0.1+ 060829 J95 (1.7- 0.6+) 060923 711 0.6+ 0.1-
020110 644 0.0 0.2- 060830 J95 0.5+ 0.5- 060925 291 0.2+ 0.0
020110 644 0.2- 0.5- 060830 734 (1.6- 0.4+) 060925 291 0.2+ 0.0
020217 644 0.1+ 0.3- 060830 734 0.8- 1.2+ 060925 291 0.0 0.3-
020217 644 0.1+ 0.4+ 060830 734 0.3- 0.8- 060925 G96 0.6- 0.3-
020305 644 0.5- 0.5- 060830 734 0.3- 0.8+ 060925 G96 0.2+ 0.6-
020305 644 0.3- 0.0 060830 734 0.2+ 0.9- 060925 G96 0.5+ 0.7-
020313 644 0.2+ 0.3+ 060830 673 0.5+ 0.3+ 060925 G96 0.5- 0.6-
020313 644 0.2+ 0.2+ 060830 673 (2.5+ 1.9+) 060930 291 0.5+ 0.6+
020313 644 0.2- 0.3+ 060830 673 0.8+ 0.3+ 060930 291 0.2- 0.4-
020314 644 0.1+ 0.0 060830 673 0.1- 0.2- 060930 291 0.2- 0.1+
020314 644 0.3+ 0.0 060901 734 0.0 1.2+ 061001 291 (2.7+ 1.7-)
060829 691 0.3- 0.2+ 060901 734 0.6+ 0.9+ 061001 291 0.0 0.5+
060829 691 0.3- 0.1+ 060901 734 0.6+ 0.0 061001 291 0.6+ 0.2+
060829 691 0.3- 0.4+ 060901 673 0.5+ 0.5+ 061011 291 0.0 0.1+
060829 D35 0.8- 1.5- 060901 673 0.2- 0.5- 061011 291 0.1- 0.5+
060829 D35 0.5+ 0.2- 060901 673 0.1- 0.3- 061011 291 0.2- 0.0
060829 D35 (2.4- 1.7-) 060909 J95 0.0 1.4- 061121 291 0.1- 0.1-
060829 D35 0.3+ 0.6+ 060909 J95 (1.9- 0.4-) 061121 291 0.3+ 0.2-
060829 D35 0.9- 1.0- 060917 291 0.1- 0.2+ 061121 291 (0.2+ 1.7-)
060829 D35 0.2+ 0.2+ 060917 291 0.0 0.1+ 070222 291 1.2- 0.1+
060829 J95 0.6+ 0.1+ 060917 291 0.8- 0.3+ 070222 291 1.1+ 0.0
060829 J95 0.5- 0.1+ 060923 711 0.1+ 0.1-
Ephemeris:
2006 QR89 a,e,i = 1.89, 0.37, 9 q = 1.1946
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 02 19 03 07.23 +06 30.6 1.001 1.233 76.6 51.2 22.3
2007 03 01 03 43.72 +09 50.4 1.048 1.259 76.2 49.8 22.4
2007 03 11 04 20.52 +12 45.9 1.106 1.291 75.7 48.2 22.5
2007 03 21 04 57.27 +15 10.8 1.173 1.328 75.0 46.4 22.6
2007 03 31 05 33.61 +17 01.4 1.251 1.368 73.9 44.6 22.8
2007 04 10 06 09.11 +18 16.9 1.338 1.411 72.6 42.6 22.9
2007 04 20 06 43.47 +18 58.7 1.434 1.457 70.9 40.6 23.1
Timothy B. Spahr (C) Copyright 2007 MPC M.P.E.C. 2007-D43
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