MPEC 1999-J22 : 1998 HM151
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M.P.E.C. 1999-J22 Issued 1999 May 7, 18:02 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 HM151
Observations:
J98HF1M*1C1998 04 29.50087 15 47 05.94 -19 52 50.0 24.0 R 568
J98HF1M 1C1998 04 29.54120 15 47 05.75 -19 52 49.4 24.0 R 568
J98HF1M 1C1998 04 29.58028 15 47 05.59 -19 52 48.6 24.0 R 568
J98HF1M 1C1998 05 02.47942 15 46 52.45 -19 52 07.8 24.0 R 568
J98HF1M 1C1998 05 02.49102 15 46 52.40 -19 52 07.7 24.0 R 568
J98HF1M 1C1998 05 02.50262 15 46 52.36 -19 52 07.9 24.0 R 568
J98HF1M 1C1998 05 24.39492 15 45 08.34 -19 46 39.7 24.0 R 568
J98HF1M 1C1998 05 24.40657 15 45 08.27 -19 46 39.5 24.0 R 568
J98HF1M 1C1998 05 24.41822 15 45 08.21 -19 46 39.2 24.0 R 568
J98HF1M 1C1999 03 14.63032 15 54 49.58 -20 17 10.8 24.0 R 568
J98HF1M 1C1999 03 15.61936 15 54 48.28 -20 17 07.3 24.0 R 568
Observer details:
568 Mauna Kea. Observers J. Luu, C. Trujillo, D. Tholen, D. Jewitt.
Observer C. Trujillo. 2.2-m University of Hawaii reflector + CCD.
Orbital elements:
1998 HM151
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Marsden
M 57.39557 (2000.0) P Q
n 0.00334479 Peri. 115.64826 -0.99993408 -0.00759870
a 44.2815827 Node 63.91739 +0.00350209 -0.91579763
e 0.0323342 Incl. 0.54910 +0.01093460 -0.40156813
P 295 H 8.0 G 0.15 U 7
Residuals in seconds of arc
980429 568 0.1+ 0.0 980502 568 0.2- 0.0 980524 568 0.1- 0.1+
980429 568 0.0 0.0 980502 568 0.0 0.4- 990314 568 0.0 0.1+
980429 568 0.3+ 0.3+ 980524 568 0.2+ 0.0 990315 568 0.0 0.2-
980502 568 0.2- 0.0 980524 568 0.0 0.0
Ephemeris:
1998 HM151 a,e,i = 44.28, 0.03, 1 q = 42.850
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 05 02 15 52.30 -20 09.7 42.583 43.537 160.9 0.4 24.4
1999 05 12 15 51.52 -20 07.3 42.540 43.537 170.8 0.2 24.4
1999 05 22 15 50.72 -20 04.9 42.526 43.538 179.4 0.0 24.3
1999 06 01 15 49.92 -20 02.5 42.541 43.539 169.6 0.2 24.4
1999 06 11 15 49.15 -20 00.1 42.585 43.539 159.8 0.5 24.4
1999 06 21 15 48.44 -19 57.9 42.656 43.540 150.1 0.7 24.5
1999 07 01 15 47.81 -19 56.0 42.753 43.541 140.4 0.9 24.5
1999 07 11 15 47.28 -19 54.3 42.871 43.542 130.7 1.0 24.5
1999 07 21 15 46.88 -19 53.1 43.009 43.542 121.1 1.1 24.5
1999 07 31 15 46.62 -19 52.3 43.161 43.543 111.5 1.2 24.5
1999 08 10 15 46.50 -19 52.0 43.324 43.544 101.9 1.3 24.6
1999 08 20 15 46.54 -19 52.1 43.492 43.544 92.3 1.3 24.6
1999 08 30 15 46.74 -19 52.8 43.662 43.545 82.7 1.3 24.6
1999 09 09 15 47.09 -19 53.9 43.828 43.546 73.1 1.3 24.6
1999 09 19 15 47.58 -19 55.5 43.986 43.547 63.5 1.2 24.6
1999 09 29 15 48.22 -19 57.5 44.131 43.547 53.8 1.1 24.6
1999 10 09 15 48.98 -19 59.9 44.259 43.548 44.2 0.9 24.6
1999 10 19 15 49.85 -20 02.6 44.366 43.549 34.5 0.7 24.6
Brian G. Marsden (C) Copyright 1999 MPC M.P.E.C. 1999-J22
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