Read MPEC 1998-W21
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M.P.E.C. 1998-W22 Issued 1998 Nov. 20, 17:00 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 WC2
Observations:
J98W02C* C1998 11 18.27847 04 02 38.24 -20 16 02.1 703
J98W02C C1998 11 18.28696 04 02 38.20 -20 16 37.8 703
J98W02C C1998 11 18.31061 04 02 37.84 -20 18 13.8 18.5 R 703
J98W02C C1998 11 19.25000 04 02 31.96 -21 21 37.0 703
J98W02C C1998 11 19.25175 04 02 31.90 -21 21 43.7 703
J98W02C C1998 11 19.25345 04 02 31.96 -21 21 50.2 703
J98W02C C1998 11 19.35389 04 02 30.56 -21 28 36.0 703
J98W02C C1998 11 19.35648 04 02 30.41 -21 28 46.8 703
J98W02C C1998 11 19.35892 04 02 30.38 -21 28 56.9 18.8 R 703
J98W02C C1998 11 19.49115 04 02 30.64 -21 37 29.7 18.6 R 426
J98W02C C1998 11 19.49880 04 02 30.64 -21 38 00.2 18.1 R 426
J98W02C C1998 11 19.50520 04 02 30.54 -21 38 26.9 18.4 R 426
J98W02C C1998 11 20.28005 04 02 24.15 -22 30 44.8 703
J98W02C C1998 11 20.28175 04 02 24.11 -22 30 52.6 703
J98W02C C1998 11 20.28942 04 02 24.00 -22 31 23.0 703
Observer details:
426 Woomera. Observer F. B. Zoltowski. 0.30-m f/3.3 Schmidt-Cassegrain + CCD.
703 Catalina Sky Survey. Observers T. B. Spahr, C. W. Hergenrother,
J. W. Brownlee. Measurer T. B. Spahr. 0.41-m f/3 Schmidt + CCD.
Orbital elements:
1998 WC2
Epoch 1998 Nov. 3.0 TT = JDT 2451120.5 Williams
M 340.35357 (2000.0) P Q
n 0.23855961 Peri. 269.10203 -0.42328492 -0.87864454
a 2.5747680 Node 209.31947 +0.90030676 -0.43521536
e 0.5662436 Incl. 26.82005 -0.10137862 -0.19639594
P 4.13 H 18.7 G 0.15
From 15 observations 1998 Nov. 18-20.
Ephemeris:
1998 WC2 a,e,i = 2.57, 0.57, 27 q = 1.1168
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 11 13 04 02.94 -14 17.8 0.472 1.404 145.5 23.5 18.9
1998 11 18 04 02.66 -19 56.9 0.457 1.372 140.2 27.5 18.9
1998 11 23 04 02.01 -25 30.4 0.449 1.340 134.2 31.9 19.0
1998 11 28 04 01.19 -30 46.1 0.447 1.310 127.9 36.5 19.0
1998 12 03 04 00.46 -35 35.4 0.450 1.281 121.8 40.9 19.1
1998 12 08 04 00.04 -39 53.3 0.456 1.254 116.0 44.9 19.2
1998 12 13 04 00.17 -43 38.1 0.464 1.228 110.8 48.5 19.3
1998 12 18 04 01.12 -46 50.6 0.473 1.205 106.2 51.7 19.4
1998 12 23 04 03.13 -49 33.6 0.483 1.184 102.2 54.3 19.5
1998 12 28 04 06.43 -51 50.3 0.492 1.165 98.9 56.5 19.5
1999 01 02 04 11.19 -53 44.5 0.500 1.150 96.1 58.3 19.6
1999 01 07 04 17.52 -55 19.0 0.506 1.137 94.0 59.6 19.6
1999 01 12 04 25.54 -56 35.9 0.511 1.127 92.4 60.7 19.7
1999 01 17 04 35.37 -57 36.4 0.514 1.120 91.4 61.4 19.7
1999 01 22 04 47.14 -58 21.3 0.514 1.117 90.9 61.7 19.7
1999 01 27 05 00.96 -58 50.7 0.512 1.117 91.0 61.8 19.7
1999 02 01 05 16.85 -59 03.8 0.508 1.121 91.6 61.5 19.7
1999 02 11 05 54.65 -58 31.6 0.495 1.137 94.4 59.9 19.6
1999 02 21 06 39.35 -56 18.9 0.477 1.166 99.4 56.8 19.5
1999 03 03 07 27.76 -51 55.9 0.461 1.206 106.5 52.0 19.3
1999 03 13 08 15.28 -45 05.3 0.453 1.255 115.1 45.8 19.2
1999 03 23 08 58.42 -36 11.3 0.462 1.311 123.8 39.1 19.2
1999 04 02 09 35.80 -26 31.9 0.497 1.374 130.2 33.8 19.3
1999 04 12 10 07.60 -17 40.1 0.560 1.440 132.4 31.0 19.6
1999 04 22 10 34.90 -10 32.9 0.649 1.510 130.4 30.4 20.0
1999 05 02 10 58.81 -05 21.6 0.762 1.581 126.1 31.0 20.4
1999 05 12 11 20.21 -01 50.0 0.893 1.654 120.6 31.7 20.9
1999 05 22 11 39.83 +00 24.3 1.039 1.727 114.7 32.2 21.3
1999 06 01 11 58.18 +01 41.3 1.197 1.801 108.8 32.2 21.7
1999 06 11 12 15.59 +02 16.6 1.364 1.874 103.0 31.9 22.1
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-W22
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