MPEC 2002-L30 : 2001 QW322
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M.P.E.C. 2002-L30 Issued 2002 June 7, 14:43 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
2001 QW322
Revision to MPEC 2001-V34
Observations:
K01QW2W C2002a06 03.45486 20 43 21.60 -18 23 13.8 675
K01QW2W C2002a06 04.42014 20 43 19.53 -18 23 23.6 675
K01QW2W C2002a06 04.43750 20 43 19.50 -18 23 23.8 24 R 675
K01QW2W C2002a06 04.45451 20 43 19.46 -18 23 23.8 675
K01QW2W C2002b06 03.45486 20 43 21.38 -18 23 12.1 675
K01QW2W C2002b06 04.42014 20 43 19.30 -18 23 22.3 675
K01QW2W C2002b06 04.43750 20 43 19.24 -18 23 22.3 24 R 675
K01QW2W C2002b06 04.45451 20 43 19.19 -18 23 22.3 675
Observer details:
675 Palomar Mountain. Observers J. Burns, V. Carruba, B. Gladman. Measurer
B. Gladman. 5-m Hale reflector + CCD.
First and last observations of component A above in comparison with prediction:
Residuals in seconds of arc and reference
020603 675 34.1- 4.9- 020604 675 33.1- 5.1- MPO 20939
Orbital elements:
2001 QW322
Epoch 2002 May 6.0 TT = JDT 2452400.5 MPC
M 85.67847 (2000.0) P Q
n 0.00334912 Peri. 86.16311 -0.85555421 +0.51310136
a 44.2434095 Node 124.69458 -0.50203072 -0.78971589
e 0.0929572 Incl. 4.81045 -0.12646003 -0.33626747
P 294 H 7.8 G 0.15 U 7
Residuals in seconds of arc
010727 568 0.2- 0.0 010825 568 0.4- 0.4+ 020603 675 0.8- 0.3+
010727 568 0.1+ 0.1+ 010918 675 0.2+ 0.4- 020604 675 0.2+ 0.1-
010824 568 0.0 0.4+ 010918 675 0.4+ 0.8- 020604 675 0.3+ 0.1-
010824 568 0.1+ 0.4+ 010918 675 0.2+ 0.8- 020604 675 0.3+ 0.1+
010824 568 0.0 0.2+ 010919 675 0.0 0.2+
010825 568 0.2+ 0.1+ 010919 675 0.4- 0.1-
Ephemeris:
2001 QW322 a,e,i = 44.24, 0.09, 5 q = 40.131
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2002 06 05 20 43.30 -18 23.5 43.721 44.323 125.8 1.1 24.4
2002 06 15 20 42.86 -18 25.4 43.595 44.325 135.5 0.9 24.4
2002 06 25 20 42.31 -18 27.7 43.489 44.327 145.2 0.8 24.4
2002 07 05 20 41.66 -18 30.4 43.407 44.330 154.9 0.6 24.3
2002 07 15 20 40.95 -18 33.3 43.352 44.332 164.6 0.3 24.3
2002 07 25 20 40.19 -18 36.3 43.324 44.335 174.3 0.1 24.3
2002 08 04 20 39.42 -18 39.4 43.325 44.337 175.9 0.1 24.3
2002 08 14 20 38.66 -18 42.4 43.355 44.339 166.2 0.3 24.3
2002 08 24 20 37.94 -18 45.3 43.414 44.342 156.4 0.5 24.3
2002 09 03 20 37.28 -18 47.8 43.499 44.344 146.6 0.7 24.4
2002 09 13 20 36.71 -18 50.1 43.609 44.347 136.7 0.9 24.4
2002 09 23 20 36.25 -18 51.9 43.740 44.349 126.8 1.0 24.4
2002 10 03 20 35.91 -18 53.3 43.889 44.351 116.9 1.2 24.4
2002 10 13 20 35.72 -18 54.1 44.052 44.354 107.0 1.2 24.4
2002 10 23 20 35.68 -18 54.3 44.223 44.356 97.1 1.3 24.4
2002 11 02 20 35.80 -18 54.0 44.397 44.359 87.1 1.3 24.5
2002 11 12 20 36.08 -18 53.1 44.570 44.361 77.2 1.2 24.5
2002 11 22 20 36.50 -18 51.6 44.737 44.364 67.2 1.2 24.5
2002 12 02 20 37.07 -18 49.7 44.892 44.366 57.2 1.1 24.5
2002 12 12 20 37.77 -18 47.2 45.031 44.368 47.2 0.9 24.5
2002 12 22 20 38.58 -18 44.3 45.150 44.371 37.3 0.8 24.4
The letters "a" and "b" in column 20 of the observations denote components
A and B of this binary object (see also IAUC 7749). There seems to have
been little relative change in position since the 2001 opposition. The
orbit above refers to component A.
Brian G. Marsden (C) Copyright 2002 MPC M.P.E.C. 2002-L30
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