MPEC 1998-K11 : COMET C/1998 J1 (SOHO)
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M.P.E.C. 1998-K11 Issued 1998 May 22, 14:12 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
COMET C/1998 J1 (SOHO)
Observations:
CJ98J010 bC1998 05 20.35333 05 18 56.61 +04 36 49.9 8.5 N 422
CJ98J010 bC1998 05 20.35406 05 18 56.89 +04 36 44.7 8.1 N 422
CJ98J010 bC1998 05 20.35481 05 18 57.21 +04 36 38.8 8.4 N 422
CJ98J010 bC1998 05 20.35557 05 18 57.44 +04 36 34.9 8.2 N 422
CJ98J010 bC1998 05 20.36016 05 18 59.55 +04 35 58.8 8.3 N 422
CJ98J010 bC1998 05 20.36083 05 18 59.90 +04 35 54.0 8.4 N 422
CJ98J010 bC1998 05 20.36151 05 19 00.24 +04 35 49.0 8.5 N 422
CJ98J010 bC1998 05 20.36219 05 19 00.63 +04 35 42.0 8.4 N 422
CJ98J010 bC1998 05 20.36491 05 19 01.96 +04 35 19.9 8.3 N 422
CJ98J010 C1998 05 20.37536 05 19 06.20 +04 34 05.1 6.4 N 426
CJ98J010 C1998 05 20.37672 05 19 06.75 +04 33 56.2 6.3 N 426
CJ98J010 C1998 05 20.37887 05 19 07.65 +04 33 38.8 6.7 N 426
CJ98J010 C1998 05 20.38359 05 19 09.73 +04 33 04.3 7.1 N 426
CJ98J010 C1998 05 20.38547 05 19 10.55 +04 32 50.2 7.2 N 426
CJ98J010 C1998 05 20.38827 05 19 11.75 +04 32 29.1 7.1 N 426
CJ98J010 C1998 05 20.39113 05 19 13.04 +04 32 07.1 7.0 N 426
CJ98J010 C1998 05 20.39359 05 19 14.20 +04 31 48.2 7.0 N 426
CJ98J010 C1998 05 20.39612 05 19 15.26 +04 31 29.7 6.9 N 426
CJ98J010 C1998 05 20.39791 05 19 16.03 +04 31 16.7 6.6 N 426
CJ98J010 C1998 05 21.35881 05 26 04.79 +02 33 06.0 9.3 N 422
CJ98J010 C1998 05 21.35946 05 26 05.06 +02 33 00.9 9.4 N 422
CJ98J010 C1998 05 21.36012 05 26 05.31 +02 32 56.2 9.2 N 422
CJ98J010 C1998 05 21.36155 05 26 05.96 +02 32 45.6 422
CJ98J010 C1998 05 21.36227 05 26 06.26 +02 32 40.5 422
CJ98J010 C1998 05 21.36300 05 26 06.52 +02 32 35.1 422
CJ98J010 C1998 05 21.36372 05 26 06.81 +02 32 30.2 422
CJ98J010 C1998 05 21.36445 05 26 07.15 +02 32 24.4 422
CJ98J010 C1998 05 21.36517 05 26 07.44 +02 32 19.2 422
CJ98J010 C1998 05 21.37578 05 26 11.85 +02 31 02.0 7.0 N 426
CJ98J010 C1998 05 21.37648 05 26 12.03 +02 30 58.4 9.0 N 422
CJ98J010 C1998 05 21.37943 05 26 13.37 +02 30 35.4 7.4 N 426
CJ98J010 C1998 05 21.38423 05 26 15.40 +02 30 00.1 7.3 N 426
CJ98J010 C1998 05 21.38914 05 26 17.43 +02 29 23.9 7.5 N 426
CJ98J010 C1998 05 21.39554 05 26 20.02 +02 28 38.0 7.4 N 426
CJ98J010 C1998 05 22.34381 05 32 47.71 +00 34 59.9 10.2 N 422
CJ98J010 C1998 05 22.34455 05 32 47.98 +00 34 54.8 10.2 N 422
CJ98J010 C1998 05 22.34529 05 32 48.30 +00 34 49.4 10.2 N 422
CJ98J010 C1998 05 22.34603 05 32 48.60 +00 34 44.1 10.1 N 422
CJ98J010 C1998 05 22.34677 05 32 48.90 +00 34 39.1 10.0 N 422
CJ98J010 C1998 05 22.35947 05 32 53.95 +00 33 09.1 10.0 N 422
CJ98J010 C1998 05 22.36023 05 32 54.28 +00 33 03.5 10.0 N 422
CJ98J010 C1998 05 22.36099 05 32 54.60 +00 32 57.8 10.1 N 422
Observer details:
422 Loomberah. Observer G. J. Garradd. 0.25-m f/4.1 reflector + CCD.
426 Woomera. Observer F. B. Zoltowski. 0.30-m f/3.3 Schmidt-Cassegrain + CCD.
Orbital elements:
C/1998 J1 (SOHO)
T 1998 May 8.616 TT Marsden
q 0.15324 (2000.0) P Q
Peri. 110.563 -0.285453 -0.949605
Node 351.636 +0.102584 +0.104057
e 1.0 Incl. 62.894 +0.952887 -0.295672
From 39 observations 1998 May 20-22.
Ephemeris:
C/1998 J1 (SOHO)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
1998 05 22 05 30.48 +01 15.8 0.845 0.510 30.2 93.3 4.7
1998 05 23 05 37.14 -00 41.8 0.849 0.539 32.1 90.9 5.0
1998 05 24 05 43.55 -02 35.9 0.854 0.566 34.0 88.5 5.2
1998 05 25 05 49.76 -04 26.1 0.861 0.594 35.8 86.2 5.4
1998 05 26 05 55.76 -06 12.5 0.868 0.621 37.6 84.0 5.6
1998 05 27 06 01.59 -07 55.0 0.877 0.647 39.2 81.8 5.8
1998 05 28 06 07.26 -09 33.5 0.887 0.674 40.9 79.7 6.0
1998 05 29 06 12.78 -11 08.2 0.897 0.700 42.4 77.7 6.2
1998 05 30 06 18.15 -12 39.1 0.908 0.725 43.9 75.8 6.4
1998 05 31 06 23.39 -14 06.3 0.920 0.750 45.3 73.9 6.6
1998 06 01 06 28.51 -15 29.9 0.933 0.775 46.7 72.1 6.7
1998 06 02 06 33.52 -16 50.0 0.947 0.800 48.0 70.4 6.9
1998 06 03 06 38.41 -18 06.8 0.960 0.824 49.2 68.8 7.1
1998 06 04 06 43.21 -19 20.3 0.975 0.848 50.4 67.2 7.2
1998 06 05 06 47.91 -20 30.8 0.990 0.872 51.6 65.7 7.4
1998 06 06 06 52.52 -21 38.4 1.005 0.895 52.6 64.2 7.5
1998 06 07 06 57.04 -22 43.2 1.020 0.919 53.7 62.9 7.7
1998 06 08 07 01.49 -23 45.3 1.036 0.942 54.6 61.5 7.8
1998 06 09 07 05.85 -24 44.9 1.053 0.965 55.6 60.2 8.0
1998 06 10 07 10.15 -25 42.0 1.069 0.987 56.5 59.0 8.1
1998 06 11 07 14.37 -26 37.0 1.086 1.010 57.3 57.8 8.2
1998 06 12 07 18.53 -27 29.7 1.103 1.032 58.1 56.7 8.3
1998 06 13 07 22.62 -28 20.4 1.121 1.054 58.9 55.6 8.5
1998 06 14 07 26.66 -29 09.2 1.138 1.076 59.6 54.5 8.6
1998 06 15 07 30.64 -29 56.1 1.156 1.097 60.3 53.5 8.7
1998 06 16 07 34.56 -30 41.3 1.174 1.119 60.9 52.5 8.8
1998 06 17 07 38.43 -31 24.9 1.192 1.140 61.6 51.6 9.0
1998 06 18 07 42.25 -32 06.9 1.210 1.161 62.2 50.7 9.1
1998 06 19 07 46.03 -32 47.4 1.229 1.182 62.7 49.8 9.2
1998 06 20 07 49.75 -33 26.5 1.247 1.203 63.2 49.0 9.3
1998 06 21 07 53.44 -34 04.4 1.266 1.224 63.8 48.2 9.4
1998 06 22 07 57.08 -34 40.9 1.284 1.244 64.2 47.4 9.5
1998 06 23 08 00.68 -35 16.3 1.303 1.264 64.7 46.6 9.6
1998 06 24 08 04.24 -35 50.6 1.322 1.285 65.1 45.9 9.7
1998 06 25 08 07.76 -36 23.9 1.341 1.305 65.5 45.2 9.8
1998 06 26 08 11.25 -36 56.1 1.360 1.325 65.9 44.5 9.9
Brian G. Marsden (C) Copyright 1998 MPC M.P.E.C. 1998-K11
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