MPEC 1998-S10 : 1998 SH2
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M.P.E.C. 1998-S10 Issued 1998 Sept. 19, 17:02 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
1998 SH2
Observations:
J98S02H* C1998 09 17.44420 01 06 22.64 +03 05 15.8 19.1 V 691
J98S02H C1998 09 17.46535 01 06 17.09 +03 05 06.6 19.2 V 691
J98S02H C1998 09 17.49046 01 06 10.60 +03 04 55.5 19.2 V 691
J98S02H C1998 09 18.31880 01 02 52.29 +02 59 03.7 19.3 V 691
J98S02H C1998 09 18.32284 01 02 51.30 +02 59 01.9 19.2 V 691
J98S02H C1998 09 18.32688 01 02 50.29 +02 59 00.2 19.3 V 691
J98S02H C1998 09 18.37918 01 02 37.22 +02 58 37.2 19.2 704
J98S02H C1998 09 18.39217 01 02 33.87 +02 58 32.5 19.9 704
J98S02H C1998 09 18.41926 01 02 27.19 +02 58 21.0 19.3 704
J98S02H C1998 09 18.43256 01 02 23.88 +02 58 14.9 19.7 704
J98S02H C1998 09 18.47723 01 02 13.22 +02 57 57.3 19.2 V 691
J98S02H C1998 09 18.48130 01 02 12.24 +02 57 55.7 19.1 V 691
J98S02H C1998 09 18.48538 01 02 11.26 +02 57 53.8 19.1 V 691
J98S02H C1998 09 18.53973 01 02 01.36 +02 58 11.7 18.7 R 422
J98S02H C1998 09 18.54087 01 02 01.03 +02 58 10.4 18.8 R 422
J98S02H C1998 09 19.37921 00 58 50.27 +02 51 52.3 711
J98S02H C1998 09 19.38855 00 58 48.15 +02 51 49.1 711
J98S02H C1998 09 19.39597 00 58 46.44 +02 51 45.8 711
J98S02H C1998 09 19.57924 00 58 08.30 +02 50 30.1 18.9 V 402
J98S02H C1998 09 19.58601 00 58 06.80 +02 50 28.0 402
J98S02H C1998 09 19.58773 00 58 06.29 +02 50 27.7 402
J98S02H C1998 09 19.60656 00 58 02.02 +02 50 58.7 19.1 R 426
J98S02H C1998 09 19.61306 00 58 00.60 +02 50 56.2 19.2 R 426
J98S02H C1998 09 19.62002 00 57 59.08 +02 50 52.9 426
Observer details:
402 Dynic Astronomical Observatory. Observer A. Sugie. 0.60-m f/3.7 reflector
+ CCD.
422 Loomberah. Observer G. J. Garradd. 0.45-m f/5.4 reflector + CCD.
426 Woomera. Observer F. B. Zoltowski. 0.30-m f/3.3 Schmidt-Cassegrain + CCD.
691 Steward Observatory, Kitt Peak. Observers J. Montani, J. V. Scotti. 0.9-m
Spacewatch telescope.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko. Measurers J. Stuart, H. Viggh, R. Sayer. 1.0-m f/2.15
reflector + CCD.
711 McDonald Observatory. Observer J. G. Ries. 0.76-m reflector + CCD.
Orbital elements:
1998 SH2 PHA 0.011
Epoch 1998 Sept. 4.0 TT = JDT 2451060.5 Williams
M 10.72433 (2000.0) P Q
n 0.22464495 Peri. 259.98276 +0.07536274 +0.99709983
a 2.6800214 Node 14.35214 -0.89730334 +0.07244959
e 0.7158761 Incl. 2.45123 -0.43493353 +0.02330222
P 4.39 H 21.0 G 0.15
From 24 observations 1998 Sept. 17-19.
Ephemeris:
1998 SH2 a,e,i = 2.68, 0.72, 2 q = 0.7615
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 09 14 01 22.61 +03 32.7 0.194 1.179 150.2 25.1 19.0
1998 09 19 01 00.25 +02 54.7 0.238 1.232 160.6 15.7 19.2
1998 09 24 00 44.23 +02 24.8 0.286 1.286 169.4 8.2 19.4
1998 09 29 00 32.50 +02 01.9 0.338 1.340 177.1 2.2 19.5
1998 10 04 00 23.86 +01 45.3 0.394 1.394 175.5 3.2 20.0
1998 10 09 00 17.59 +01 34.5 0.454 1.447 169.1 7.5 20.6
1998 10 14 00 13.18 +01 28.7 0.517 1.500 163.1 11.1 21.1
1998 10 19 00 10.30 +01 27.7 0.585 1.553 157.5 14.2 21.6
1998 10 24 00 08.71 +01 31.1 0.657 1.605 152.2 16.8 22.0
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-S10
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