MPEC 2004-T38 : 1999 LD30
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M.P.E.C. 2004-T38 Issued 2004 Oct. 9, 17:51 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.
Supported in part by the Brinson Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1999 LD30
Revision to MPEC 1999-M13
Additional Observations:
J99L30D C2004 09 17.37417 02 58 34.30 -00 38 12.9 21.6 V ET038291
J99L30D C2004 09 17.37817 02 58 34.06 -00 38 14.3 21.3 V ET038291
J99L30D C2004 09 17.38198 02 58 33.81 -00 38 15.4 21.2 V ET038291
J99L30D HC2004 10 09.44755 02 30 47.99 -02 03 11.1 21.9 V ET038291
J99L30D HC2004 10 09.45583 02 30 47.12 -02 03 11.8 21.7 V ET038291
J99L30D HC2004 10 09.46288 02 30 46.45 -02 03 13.9 22.2 V ET038291
Observer details:
291 LPL/Spacewatch II. Observer M. Block. 1.8-m f/2.7 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
040917 291 85.2- 67.7- 041009 291 0.03- 0.02- MPC 36544 +0.047 day
Orbital elements:
1999 LD30
Epoch 2004 July 14.0 TT = JDT 2453200.5 MPC
M 7.04664 (2000.0) P Q
n 0.20424951 Peri. 205.49101 +0.36485527 +0.91953257
a 2.8555868 Node 86.19270 -0.82721281 +0.39215424
e 0.6222912 Incl. 8.41876 -0.42731675 +0.02597907
P 4.83 H 20.3 G 0.15 U 1
Residuals in seconds of arc
990615 704 0.4+ 0.2+ 990618 426 0.2+ 0.7+ 990710 428 0.3- 0.9-
990615 704 0.7+ 0.2- 990618 426 0.1- 0.4+ 990804 413 0.3+ 0.1-
990615 704 0.4+ 0.4- 990618 426 0.4+ 0.2+ 990804 413 0.4+ 0.0
990615 704 0.3+ 0.3- 990619 684 0.4- 0.9+ 990914 413 0.3+ 0.1-
990615 704 0.1- 0.2- 990619 684 0.8- 0.2+ 990914 413 0.5+ 0.2+
990617 696 1.3+ 1.0- 990619 422 0.2+ 0.1- 990918 413 0.0 0.7+
990617 696 0.0 0.4+ 990619 422 0.3- 0.0 990918 413 0.2+ 0.7-
990617 696 1.6- 0.7+ 990619 422 0.1- 0.2- 991006 413 0.5+ 0.1+
990617 696 0.5- 0.3- 990620 046 0.6- 0.5- 991006 413 0.2+ 0.3-
990617 422 0.4- 0.3- 990620 046 (2.4+ 0.2+) 991007 413 0.4- 0.1+
990617 422 0.7+ 0.4- 990620 046 1.9- 1.1+ 991007 413 0.6- 0.3-
990617 422 0.5- 0.0 990620 046 0.2+ 0.7+ 991015 413 0.2+ 0.4-
990617 422 0.1- 0.5- 990620 046 0.6- 0.1+ 991015 413 0.3- 0.1+
990618 587 0.4+ 0.5+ 990629 413 0.2- 0.3- 991017 413 0.0 0.6-
990618 587 1.4+ 1.5- 990629 413 0.3- 0.1- 991017 413 0.1+ 0.3+
990618 684 0.4+ 0.4+ 990702 413 0.9+ 0.2- 040917 291 0.4+ 1.0+
990618 684 0.0 0.4+ 990702 413 0.8+ 0.2- 040917 291 0.1+ 0.7+
990618 684 0.3+ 0.3+ 990709 426 0.4+ 0.2+ 040917 291 0.5- 0.6+
990618 684 0.3- 0.6+ 990709 426 0.2+ 0.2+ 041009 291 0.3+ 0.3+
990618 684 0.0 1.1+ 990709 426 0.2+ 0.2- 041009 291 1.0- 0.8+
990618 428 0.3- 0.5+ 990710 428 0.7- 0.1+ 041009 291 1.2- 0.2-
990618 428 1.6+ 1.1- 990710 428 1.3- 0.6-
Ephemeris:
1999 LD30 a,e,i = 2.86, 0.62, 8 q = 1.0786
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 10 02 02 41.71 -01 39.8 0.812 1.741 147.5 18.0 22.0
2004 10 12 02 26.92 -02 08.9 0.856 1.822 158.5 11.6 22.0
2004 10 22 02 11.88 -02 18.9 0.923 1.902 165.3 7.6 22.1
2004 11 01 01 58.60 -02 06.6 1.014 1.982 162.1 8.8 22.4
2004 11 11 01 48.36 -01 33.7 1.129 2.061 153.1 12.6 22.9
2004 11 21 01 41.69 -00 43.6 1.266 2.139 143.0 16.1 23.3
Gareth V. Williams (C) Copyright 2004 MPC M.P.E.C. 2004-T38
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