MPEC 1999-J47 : 1998 HQ151
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M.P.E.C. 1999-J47 Issued 1999 May 15, 15:15 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.
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1998 HQ151
Revision to MPEC 1999-J25
Observations:
J98HF1Q 1C1999 03 14.59369 15 26 23.54 -18 03 39.2 23.0 R 568
J98HF1Q 1C1999 03 14.65306 15 26 23.40 -18 03 38.4 23.0 R 568
J98HF1Q 1C1999 05 07.52390 15 21 52.58 -17 41 00.1 22.8 R 568
J98HF1Q 1C1999 05 07.55245 15 21 52.39 -17 40 59.2 22.8 R 568
Observer details:
568 Mauna Kea. Observers C. Trujillo, D. Tholen, D. Jewitt, J. Luu. Measurer
C. Trujillo. 3.6-m Canada-France-Hawaii reflector + CCD, 2.2-m
University of Hawaii reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc and reference
990314 568 61.7- 12.3+ 990507 568 61.5- 10.7+ E1999-J25
Orbital elements:
1998 HQ151
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Marsden
M 9.46942 (2000.0) P Q
n 0.00402663 Peri. 346.95896 -0.80679853 +0.56978042
a 39.1298776 Node 228.89661 -0.52175261 -0.81121285
e 0.2786522 Incl. 11.97069 -0.27721895 -0.13146857
P 245 H 8.8 G 0.15 U 5
Residuals in seconds of arc
980428 568 0.1+ 0.2- 980522 568 0.1- 0.2+ 990314 568 0.1+ 0.2+
980428 568 0.1- 0.1+ 980522 568 0.1+ 0.1+ 990314 568 0.1+ 0.1+
980428 568 0.1+ 0.1- 980522 568 0.0 0.2+ 990507 568 0.1- 0.1-
980430 568 0.1- 0.2- 980630 568 0.0 0.0 990507 568 0.1- 0.1-
980430 568 0.1- 0.1- 980701 568 0.2+ 0.0
Ephemeris:
1998 HQ151 a,e,i = 39.13, 0.28, 12 q = 28.226
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 05 12 15 21.38 -17 38.7 27.479 28.488 178.1 0.1 23.3
1999 05 22 15 20.26 -17 33.5 27.489 28.491 171.7 0.3 23.3
1999 06 01 15 19.17 -17 28.5 27.528 28.493 161.9 0.6 23.4
1999 06 11 15 18.17 -17 23.8 27.594 28.495 152.1 1.0 23.4
1999 06 21 15 17.29 -17 19.6 27.687 28.497 142.3 1.3 23.5
1999 07 01 15 16.55 -17 16.1 27.802 28.500 132.6 1.5 23.5
1999 07 11 15 16.00 -17 13.2 27.937 28.502 122.9 1.7 23.5
1999 07 21 15 15.65 -17 11.2 28.088 28.505 113.3 1.9 23.5
1999 07 31 15 15.52 -17 10.1 28.250 28.507 103.7 2.0 23.6
1999 08 10 15 15.62 -17 09.8 28.418 28.509 94.1 2.0 23.6
1999 08 20 15 15.95 -17 10.5 28.589 28.512 84.6 2.0 23.6
1999 08 30 15 16.51 -17 12.1 28.757 28.514 75.1 2.0 23.6
1999 09 09 15 17.28 -17 14.4 28.918 28.516 65.6 1.8 23.6
1999 09 19 15 18.26 -17 17.6 29.067 28.519 56.1 1.7 23.6
1999 09 29 15 19.42 -17 21.3 29.200 28.521 46.6 1.5 23.6
1999 10 09 15 20.75 -17 25.7 29.314 28.524 37.1 1.2 23.6
Brian G. Marsden (C) Copyright 1999 MPC M.P.E.C. 1999-J47
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