MPEC 1998-F03 : 1998 DG16
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M.P.E.C. 1998-F03 Issued 1998 Mar. 17, 14:57 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
Revision to MPEC 1998-E19
Observations:
J98D16G C1998 03 11.00799 12 08 17.18 -16 24 53.8 17.3 R 118
J98D16G C1998 03 11.01300 12 08 15.36 -16 25 04.1 118
J98D16G C1998 03 11.01547 12 08 14.43 -16 25 09.4 118
J98D16G C1998 03 17.46096 11 25 26.87 -19 52 29.1 18.0 R 426
J98D16G C1998 03 17.47018 11 25 22.74 -19 52 45.5 18.2 R 426
J98D16G C1998 03 17.47338 11 25 21.31 -19 52 51.0 18.2 R 426
Observer details:
118 Modra. Observers P. Koleny, L. Kornos. 0.6-m f/5.5 reflector + CCD.
426 Woomera. Observer F. B. Zoltowski. 0.30-m f/3.3 Schmidt-Cassegrain + CCD
Orbital elements:
1998 DG16 = 1981 EK24
Epoch 1997 Dec. 18.0 TT = JDT 2450800.5 Williams
M 108.34819 (2000.0) P Q
n 1.16072813 Peri. 356.77579 +0.94752277 +0.31083301
a 0.8967039 Node 344.47318 -0.28670938 +0.72284437
e 0.3582165 Incl. 16.20879 -0.14141547 +0.61715383
P 0.85 H 20.5 G 0.15 U 5
Residuals in seconds of arc
810302 413 2.6- 0.0 980228 426 1.2+ 0.3+ 980302 360 0.7+ 0.9+
810303 413 2.6+ 0.1- 980301 557 0.7- 0.1- 980302 360 0.6+ 1.1+
980227 566 1.2+ 0.4+ 980301 557 1.2+ 0.4+ 980302 360 0.6+ 1.0+
980227 566 1.5+ 0.3+ 980301 557 0.9+ 0.5- 980311 118 0.3+ 0.1+
980227 566 1.1+ 0.8+ 980301 673 0.9+ 0.9+ 980311 118 0.8+ 0.2+
980228 673 0.8- 1.2- 980301 673 1.7- 0.5+ 980311 118 0.5+ 0.0
980228 673 0.9- 1.3- 980301 673 0.2+ 0.6- 980317 426 0.3+ 0.2-
980228 673 1.9- 1.5- 980302 402 2.0- 0.9- 980317 426 0.4- 0.1-
980228 426 0.8+ 0.5+ 980302 402 2.0- 0.8- 980317 426 0.6- 0.2+
980228 426 0.4+ 0.5+ 980302 402 2.1- 0.9-
Ephemeris:
1998 DG16 a,e,i = 0.90, 0.36, 16 q = 0.5755
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 03 08 12 25.19 -14 39.7 0.234 1.206 153.4 21.6 18.8
1998 03 13 11 55.95 -17 32.1 0.217 1.199 158.5 17.7 18.5
1998 03 18 11 21.51 -20 08.1 0.207 1.189 157.7 18.5 18.4
1998 03 23 10 44.14 -22 07.3 0.204 1.178 150.5 24.6 18.5
1998 03 28 10 07.16 -23 18.2 0.207 1.166 140.6 32.9 18.8
1998 04 02 09 33.68 -23 43.9 0.216 1.151 130.4 41.4 19.1
1998 04 07 09 05.37 -23 38.1 0.228 1.135 120.7 49.3 19.4
1998 04 12 08 42.39 -23 15.1 0.243 1.116 112.0 56.4 19.7
1998 04 17 08 24.09 -22 45.4 0.259 1.096 104.2 62.6 20.0
1998 04 22 08 09.52 -22 15.0 0.276 1.075 97.1 68.1 20.3
1998 04 27 07 57.75 -21 46.5 0.291 1.051 90.7 73.2 20.5
1998 05 02 07 47.92 -21 21.0 0.305 1.026 84.8 78.0 20.7
1998 05 07 07 39.25 -20 57.2 0.318 0.999 79.1 82.6 20.9
1998 05 12 07 31.07 -20 32.8 0.329 0.971 73.7 87.3 21.1
1998 05 17 07 22.81 -20 04.1 0.337 0.941 68.4 92.2 21.3
1998 05 22 07 14.00 -19 26.3 0.344 0.909 63.0 97.3 21.5
1998 05 27 07 04.24 -18 33.7 0.349 0.877 57.5 102.8 21.7
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-F03
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