MPEC 1999-Q07 : 1993 DC
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M.P.E.C. 1999-Q07 Issued 1999 Aug. 20, 16:27 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 ISSN 1523-6714
1993 DC
Observations:
J93D00C 1C1999 08 02.66767 20 48 38.05 -32 08 46.5 18.8 R 413
J93D00C 1C1999 08 02.67352 20 48 37.61 -32 08 48.8 18.9 R 413
J93D00C 1C1999 08 03.66103 20 47 25.45 -32 15 13.0 19.0 R 413
J93D00C 1C1999 08 03.66631 20 47 25.05 -32 15 14.9 18.9 R 413
J93D00C 1C1999 08 20.59132 20 27 03.09 -33 35 21.1 19.3 R 413
J93D00C 1C1999 08 20.59697 20 27 02.70 -33 35 22.3 19.1 R 413
Observer details:
413 Siding Spring. Observer R. H. McNaught. 1.0-m f/8 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
990802 413 1.01+ 0.13+ 990820 413 0.97+ 0.05+ MPC 23521 -3.6 day
Orbital elements:
1993 DC
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Williams
M 282.18271 (2000.0) P Q
n 0.26650797 Peri. 4.84052 +0.26226928 -0.95082539
a 2.3914570 Node 70.02763 +0.87937718 +0.16518206
e 0.4278489 Incl. 10.09631 +0.39737966 +0.26200375
P 3.70 H 16.1 G 0.15 U 3
Residuals in seconds of arc
930218 691 0.5+ 0.0 930222 691 0.1+ 0.2+ 930415 691 0.1+ 0.1-
930218 691 0.1+ 0.7- 930226 691 0.8- 0.1- 990802 413 0.0 0.1-
930218 691 0.2- 0.0 930226 691 0.6- 0.0 990802 413 0.1- 0.1-
930221 691 0.0 0.1- 930226 691 0.5- 0.1- 990803 413 0.1- 0.1-
930221 691 0.6- 0.4+ 930328 691 0.6- 0.1- 990803 413 0.2- 0.0
930221 691 0.1- 0.5- 930328 691 0.3+ 0.2- 990820 413 0.2+ 0.1+
930222 691 1.5+ 0.3+ 930328 691 0.2+ 0.0 990820 413 0.2+ 0.1-
930222 691 0.1- 0.2+ 930415 691 0.5- 0.1+
930222 691 0.5+ 0.3+ 930415 691 0.8+ 0.2-
Ephemeris:
1993 DC a,e,i = 2.39, 0.43, 10 q = 1.3683
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 08 10 20 39.62 -32 52.2 1.622 2.601 160.8 7.4 19.8
1999 08 20 20 27.72 -33 33.6 1.624 2.558 151.1 11.0 19.9
1999 08 30 20 17.54 -33 52.7 1.650 2.513 140.5 14.8 20.0
1999 09 09 20 10.15 -33 50.9 1.696 2.468 130.1 18.2 20.1
1999 09 19 20 06.20 -33 31.4 1.756 2.421 120.1 21.0 20.3
1999 09 29 20 05.88 -32 58.1 1.827 2.374 110.7 23.3 20.4
1999 10 09 20 09.04 -32 13.7 1.903 2.325 101.9 24.9 20.5
1999 10 19 20 15.39 -31 20.0 1.982 2.276 93.8 25.9 20.6
1999 10 29 20 24.54 -30 17.8 2.060 2.226 86.1 26.4 20.6
1999 11 08 20 36.10 -29 07.1 2.134 2.175 79.0 26.6 20.6
1999 11 18 20 49.72 -27 47.5 2.203 2.124 72.3 26.3 20.6
1999 11 28 21 05.06 -26 18.4 2.266 2.072 66.0 25.8 20.6
1999 12 08 21 21.87 -24 39.0 2.320 2.019 60.1 25.0 20.6
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-Q07
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