MPEC 2002-R76 : 1998 QH1
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M.P.E.C. 2002-R76 Issued 2002 Sept. 15, 02:25 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
1998 QH1
Revision to MPEC 1998-Q15
Observations:
J98Q01H C2002 09 13.18799 19 45 50.28 -16 30 41.2 21.5 V 291
J98Q01H C2002 09 13.20967 19 45 51.36 -16 31 24.1 21.4 V 291
J98Q01H C2002 09 13.23176 19 45 52.39 -16 32 09.3 20.3 V 291
J98Q01H C2002 09 14.16507 19 46 49.82 -17 03 11.0 21.3 V 291
J98Q01H C2002 09 14.17284 19 46 50.21 -17 03 26.2 21.1 V 291
J98Q01H C2002 09 14.18097 19 46 50.66 -17 03 43.1 21.2 V 291
Observer details:
291 LPL/Spacewatch II. Observer J. V. Scotti. 1.8-m Spacewatch telescope.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
020913 291 0.36+ 0.03- 020914 291 0.36+ 0.03- MPC 33080 -0.22 day
Orbital elements:
1998 QH1
Epoch 2002 Nov. 22.0 TT = JDT 2452600.5 MPC
M 6.10664 (2000.0) P Q
n 0.24277395 Peri. 215.02513 +0.95047314 -0.30387088
a 2.5448840 Node 162.31578 +0.31080657 +0.92906547
e 0.5472113 Incl. 12.41228 +0.00029138 +0.21094986
P 4.06 H 20.7 G 0.15 U 1
Residuals in seconds of arc
980817 704 (0.9+ 2.3-) 980826 587 0.1- 0.3- 980919 402 0.3- 0.4-
980817 704 0.3- 0.5- 980826 587 0.2- 0.6+ 980919 402 0.5- 0.5-
980817 704 1.5+ 0.7- 980901 046 0.2+ 0.6- 980919 402 0.1- 1.3-
980817 704 (4.6- 2.0+) 980901 046 0.1- 0.4+ 980925 046 0.2+ 0.8+
980819 422 0.1- 0.7+ 980901 046 0.1+ 0.3- 980925 046 1.1+ 0.2+
980819 557 0.2+ 0.4+ 980901 046 0.3+ 0.3+ 980925 046 0.9+ 0.4+
980819 557 0.2+ 0.6- 980902 402 0.1+ 0.3+ 980925 046 0.7+ 0.8+
980819 557 0.5+ 0.1- 980902 402 0.2+ 0.2- 981025 426 0.1- 0.9+
980820 557 0.0 0.3+ 980902 402 0.4+ 0.0 981025 426 0.2- 0.1+
980821 557 0.2+ 0.2+ 980902 360 0.0 0.6+ 020913 291 0.6+ 0.5+
980821 557 0.4+ 0.3+ 980902 360 0.4+ 0.3+ 020913 291 0.5+ 0.6+
980821 557 0.2- 0.6- 980902 360 0.4+ 0.1- 020913 291 0.7- 0.8-
980824 658 0.9- 0.1- 980918 422 0.5- 0.4- 020914 291 0.3+ 0.6+
980824 658 0.8- 0.2- 980918 422 1.9- 0.3- 020914 291 0.2- 0.9+
980824 658 0.6- 0.1+ 980918 426 0.0 0.5- 020914 291 0.2- 0.2+
980826 557 0.6- 0.5+ 980918 426 0.2+ 0.5-
980826 557 0.1- 0.3- 980918 426 0.3- 0.3-
Ephemeris:
1998 QH1 a,e,i = 2.54, 0.55, 12 q = 1.1523
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2002 09 13 19 45.66 -16 24.1 0.382 1.266 125.2 40.5 20.7
2002 09 23 19 59.66 -21 55.3 0.373 1.223 117.8 46.6 20.8
2002 10 03 20 23.11 -27 06.7 0.370 1.189 111.9 51.4 20.8
2002 10 13 20 56.48 -31 28.1 0.371 1.166 107.7 54.7 20.9
2002 10 23 21 39.00 -34 26.7 0.379 1.154 105.2 56.3 20.9
2002 11 02 22 27.93 -35 34.0 0.393 1.154 104.3 56.4 21.0
2002 11 12 23 19.00 -34 36.0 0.414 1.166 104.7 55.2 21.1
2002 11 22 00 07.75 -31 44.1 0.446 1.190 105.9 53.0 21.3
2002 12 02 00 51.44 -27 28.3 0.488 1.224 107.4 50.2 21.4
2002 12 12 01 29.55 -22 24.0 0.542 1.267 108.7 47.4 21.7
2002 12 22 02 02.78 -17 03.7 0.609 1.318 109.4 44.8 21.9
Gareth V. Williams (C) Copyright 2002 MPC M.P.E.C. 2002-R76
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