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M.P.E.C. 1998-E02 Issued 1998 Mar. 1, 16:54 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 DG16
Observations:
J98D16G* C1998 02 27.60011 13 00 58.89 -09 59 11.1 19.1 V 566
J98D16G C1998 02 27.61027 13 00 56.77 -09 59 30.2 18.8 V 566
J98D16G C1998 02 27.62043 13 00 54.60 -09 59 48.6 18.9 V 566
J98D16G C1998 02 28.33767 12 58 30.19 -10 22 33.9 673
J98D16G C1998 02 28.34815 12 58 27.89 -10 22 54.1 673
J98D16G C1998 02 28.36782 12 58 23.51 -10 23 32.0 673
J98D16G C1998 02 28.57558 12 57 40.84 -10 29 30.7 19.6 V 426
J98D16G C1998 02 28.59701 12 57 36.11 -10 30 12.2 426
J98D16G C1998 02 28.60302 12 57 34.84 -10 30 24.1 426
J98D16G WC1998 03 01.09730 12 55 46.73 -10 46 56.5 557
J98D16G C1998 03 01.09963 12 55 46.33 -10 47 00.5 557
J98D16G C1998 03 01.10196 12 55 45.78 -10 47 05.8 19.1 V 557
J98D16G C1998 03 01.34656 12 54 53.24 -10 54 52.3 673
J98D16G C1998 03 01.34986 12 54 52.30 -10 54 59.2 673
J98D16G C1998 03 01.35605 12 54 50.99 -10 55 12.4 673
Observer details:
426 Woomera. Observer F. B. Zoltowski. 0.30-m f/3.3 Schmidt-Cassegrain + CCD
557 Ondrejov. Observer P. Pravec. 0.65-m f/3.6 reflector + CCD.
566 Haleakala-NEAT/GEODSS. Observers E. F. Helin, S. Pravdo, K. J. Lawrence,
D. L. Rabinowitz for the NEAT team. 1.0-m f/2.2 GEODSS telescope + CCD.
673 Table Mountain Observatory, Wrightwood. Observer D. L. Rabinowitz. 0.6-m
reflector + CCD.
Orbital elements:
1998 DG16
Epoch 1998 Feb. 16.0 TT = JDT 2450860.5 Williams
M 175.40380 (2000.0) P Q
n 1.15112141 Peri. 358.05851 +0.95320605 +0.29333034
a 0.9016859 Node 344.27986 -0.27360740 +0.73404967
e 0.3431871 Incl. 15.67044 -0.12859715 +0.61247726
P 0.86 H 20.5 G 0.15
From 15 observations 1998 Feb. 27-Mar. 1.
Ephemeris:
1998 DG16 a,e,i = 0.90, 0.34, 16 q = 0.5922
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 02 26 13 06.06 -09 09.5 0.275 1.210 138.5 32.9 19.5
1998 03 03 12 48.47 -11 48.6 0.250 1.207 146.0 27.3 19.1
1998 03 08 12 25.34 -14 38.3 0.230 1.202 153.4 21.7 18.8
1998 03 13 11 56.49 -17 28.0 0.214 1.196 158.5 17.7 18.5
1998 03 18 11 22.78 -20 00.3 0.205 1.188 157.9 18.4 18.4
1998 03 23 10 46.47 -21 56.2 0.202 1.178 151.1 24.2 18.5
1998 03 28 10 10.74 -23 05.5 0.206 1.166 141.5 32.2 18.8
1998 04 02 09 38.50 -23 31.7 0.215 1.153 131.5 40.5 19.1
1998 04 07 09 11.29 -23 27.8 0.227 1.138 122.1 48.2 19.4
1998 04 12 08 49.27 -23 07.5 0.242 1.121 113.6 55.0 19.7
1998 04 17 08 31.80 -22 40.6 0.258 1.103 105.9 61.1 19.9
1998 04 22 08 18.01 -22 13.1 0.274 1.082 99.1 66.5 20.2
1998 04 27 08 07.01 -21 47.7 0.289 1.061 92.8 71.4 20.4
1998 05 02 07 58.01 -21 25.5 0.303 1.037 87.0 76.0 20.6
1998 05 07 07 50.24 -21 05.9 0.315 1.012 81.6 80.5 20.8
1998 05 12 07 43.07 -20 46.7 0.326 0.985 76.3 84.9 21.0
1998 05 17 07 35.94 -20 24.8 0.334 0.957 71.2 89.5 21.2
1998 05 22 07 28.40 -19 56.3 0.340 0.928 66.0 94.4 21.4
1998 05 27 07 20.03 -19 16.1 0.345 0.897 60.8 99.6 21.6
1998 06 01 07 10.44 -18 17.8 0.347 0.865 55.4 105.3 21.8
1998 06 06 06 59.37 -16 53.2 0.350 0.833 49.8 111.5 22.1
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-E02
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