MPEC 2001-R05 : 2001 QL169
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M.P.E.C. 2001-R05 Issued 2001 Sept. 1, 19:13 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 QL169
Observations:
K01QG9L* C2001 08 17.46896 01 01 55.82 -21 15 42.0 19.8 644
K01QG9L C2001 08 17.47941 01 01 56.45 -21 15 51.9 19.7 644
K01QG9L C2001 08 17.48991 01 01 57.09 -21 16 00.9 19.8 644
K01QG9L C2001 08 23.59970 01 07 33.91 -22 48 31.0 20.6 608
K01QG9L C2001 08 23.61043 01 07 34.36 -22 48 41.2 20.6 608
K01QG9L C2001 08 23.62086 01 07 34.78 -22 48 50.8 20.6 608
K01QG9L C2001 08 24.58471 01 08 17.80 -23 03 11.4 20.2 608
K01QG9L C2001 08 24.59521 01 08 18.19 -23 03 20.2 20.1 608
K01QG9L C2001 08 24.60600 01 08 18.58 -23 03 29.5 20.0 608
K01QG9L FC2001 08 24.76742 01 08 25.43 -23 05 41.5 19.2 R 422
K01QG9L FC2001 08 24.77155 01 08 25.61 -23 05 45.3 19.1 R 422
K01QG9L C2001 08 25.07718 01 08 38.80 -23 10 31.0 18.5 R 046
K01QG9L C2001 08 25.07856 01 08 38.87 -23 10 32.0 046
K01QG9L C2001 08 25.07986 01 08 38.93 -23 10 33.8 046
K01QG9L C2001 08 27.37394 01 10 06.43 -23 44 00.8 17.8 R 711
K01QG9L C2001 08 27.38234 01 10 06.69 -23 44 08.1 17.6 R 711
K01QG9L C2001 08 27.38729 01 10 07.00 -23 44 12.0 19.3 644
K01QG9L C2001 08 27.39081 01 10 06.91 -23 44 15.1 711
K01QG9L C2001 08 27.39954 01 10 07.36 -23 44 22.8 19.2 644
K01QG9L C2001 08 27.39955 01 10 07.02 -23 44 24.1 18.9 R 649
K01QG9L C2001 08 27.40547 01 10 07.25 -23 44 29.2 18.2 R 649
K01QG9L C2001 08 27.41066 01 10 07.66 -23 44 33.0 19.2 644
K01QG9L C2001 08 27.41378 01 10 07.46 -23 44 36.1 18.8 R 649
K01QG9L C2001 08 28.31146 01 10 38.02 -23 57 26.2 20.3 644
K01QG9L C2001 08 28.33281 01 10 38.62 -23 57 44.9 19.6 644
K01QG9L C2001 08 28.35391 01 10 39.21 -23 58 03.2 19.6 644
K01QG9L C2001 08 28.43273 01 10 41.13 -23 59 10.8 18.0 R 711
K01QG9L C2001 08 28.44125 01 10 41.34 -23 59 18.0 18.1 R 711
K01QG9L C2001 08 28.44982 01 10 41.58 -23 59 25.2 18.1 R 711
K01QG9L C2001 08 29.07128 01 11 00.87 -24 08 15.4 557
K01QG9L C2001 08 29.07326 01 11 00.89 -24 08 17.8 557
K01QG9L C2001 08 29.07524 01 11 00.91 -24 08 19.4 557
K01QG9L C2001 08 29.07722 01 11 00.93 -24 08 21.1 557
K01QG9L C2001 08 29.31832 01 11 08.24 -24 11 43.0 19.7 R 649
K01QG9L C2001 08 29.34160 01 11 08.82 -24 12 03.7 18.6 R 649
K01QG9L C2001 08 29.36238 01 11 09.35 -24 12 20.3 19.5 R 649
K01QG9L C2001 08 29.38565 01 11 10.04 -24 12 39.4 18.2 R 711
K01QG9L C2001 08 29.39421 01 11 10.25 -24 12 46.6 18.0 R 711
K01QG9L C2001 08 29.40272 01 11 10.43 -24 12 54.1 18.0 R 711
Observer details:
046 Klet. Observers J. Ticha, M. Tichy, P. Jelinek. 0.57-m f/5.2 reflector
+ CCD.
422 Loomberah. Observer G. J. Garradd. 0.45-m f/5.4 reflector + CCD.
557 Ondrejov. Observer L. Sarounova. 0.65-m f/3.6 reflector + CCD.
608 Haleakala-NEAT/MSSS. Observers E. F. Helin, S. Pravdo, K. Lawrence,
P. Kervin, R. Maeda, J. Africano, M. Hicks. 1.2-m reflector + CCD.
644 Palomar Mountain/NEAT. Observers E. F. Helin, S. Pravdo, K. Lawrence,
M. Hicks, E. Hovland, T. Bickler, J. Schroeder, L. Scherr, R. Thicksten,
A. Deetz. 1.2-m Schmidt + CCD.
649 Powell Observatory, Louisburg. Observer K. Smalley. 0.75-m Newtonian
+ CCD.
711 McDonald Observatory. Observer P. J. Shelus. 0.76-m reflector + CCD.
Orbital elements:
2001 QL169
Epoch 2001 Aug. 19.0 TT = JDT 2452140.5 Marsden
M 5.49382 (2000.0) P Q
n 0.17973776 Peri. 210.12257 +0.77492042 +0.58811993
a 3.1096380 Node 112.03182 -0.51851965 +0.80100984
e 0.5093514 Incl. 14.46484 -0.36143564 +0.11179528
P 5.48 H 17.7 G 0.15
From 39 observations 2001 Aug. 17-29.
Ephemeris:
2001 QL169 a,e,i = 3.11, 0.51, 14 q = 1.5257
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 08 29 01 10.98 -24 07.0 0.670 1.578 139.0 24.9 19.0
2001 09 08 01 13.55 -26 15.4 0.680 1.605 143.4 22.0 19.0
2001 09 18 01 11.84 -27 47.4 0.703 1.638 146.4 19.8 19.0
2001 09 28 01 07.22 -28 29.5 0.741 1.674 147.3 18.8 19.1
2001 10 08 01 01.53 -28 16.4 0.794 1.715 145.9 19.1 19.3
2001 10 18 00 56.46 -27 11.6 0.863 1.760 142.3 20.3 19.6
2001 10 28 00 53.30 -25 24.3 0.947 1.807 137.3 21.9 19.9
2001 11 07 00 52.68 -23 06.5 1.045 1.857 131.5 23.6 20.3
2001 11 17 00 54.68 -20 29.5 1.158 1.909 125.3 25.0 20.6
2001 11 27 00 59.14 -17 42.2 1.284 1.962 119.0 26.1 20.9
2001 12 07 01 05.73 -14 51.3 1.421 2.017 112.6 26.8 21.2
2001 12 17 01 14.08 -12 01.2 1.569 2.073 106.3 27.1 21.5
2001 12 27 01 23.91 -09 14.7 1.725 2.130 100.0 27.0 21.7
2002 01 06 01 34.92 -06 33.9 1.889 2.187 93.9 26.7 22.0
The orbit is not significantly changed as the result of the following
approaches to Jupiter: 0.74 AU in 1860, 0.74 AU in 1943, 0.78 AU in 2014 and
0.84 AU in 2098.
Brian G. Marsden (C) Copyright 2001 MPC M.P.E.C. 2001-R05
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