MPEC 2000-L31: 1999 JT6
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M.P.E.C. 2000-L31 Issued 2000 June 8, 21:52 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.
Prepared using the Tamkin Foundation Computer Network
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1999 JT6
Revision to MPEC 1999-J50
Observations:
J99J06T 3C2000 06 07.59856 20 46 22.80 -25 15 27.5 568
J99J06T 3C2000 06 07.60302 20 46 22.68 -25 15 28.6 568
J99J06T 3C2000 06 08.49039 20 46 00.45 -25 19 34.7 568
Observer details:
568 Mauna Kea. Observers C. Veillet, A. Doressoundiram. 3.6-m CFHT + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
000607 568 10.1+ 0.3+ 000608 568 10.0+ 0.5+ MPC 36087 -0.056 day
Orbital elements:
1999 JT6 PHA 0.014
Epoch 2000 Sept. 13.0 TT = JDT 2451800.5 Williams
M 199.24553 (2000.0) P Q
n 0.31604449 Peri. 38.85585 -0.45974038 -0.87292854
a 2.1345380 Node 79.06875 +0.76765685 -0.48303723
e 0.5787790 Incl. 9.56793 +0.44647704 -0.06834320
P 3.12 H 16.2 G 0.15 U 3
Residuals in seconds of arc
990220 704 0.7+ 0.2+ 990513 046 0.4+ 0.2+ 990517 704 0.5+ 0.2-
990220 704 0.6+ 1.0- 990513 046 0.5+ 0.4+ 990517 704 0.7- 0.4-
990220 704 0.2+ 0.5+ 990514 704 0.5+ 0.8- 990517 704 0.4- 0.3+
990220 704 0.3- 1.1- 990514 719 0.2- 0.4- 990517 704 (2.2+ 0.7+)
990220 704 0.4- 0.6+ 990514 719 0.2+ 0.3- 990517 704 0.2- 0.4-
990512 683 0.0 0.3- 990514 704 1.4- 0.8- 990518 704 0.1+ 0.2+
990512 683 0.3- 0.1+ 990514 704 0.4- 0.0 990518 704 0.7- 0.2-
990512 683 0.2- 0.2- 990514 704 0.5- 0.1- 990518 704 0.2+ 0.1+
990512 704 0.8+ 0.6- 990514 684 0.3- 0.1- 990518 704 0.1+ 0.1+
990512 704 (1.6+ 2.0+) 990514 860 (2.4- 1.2-) 990518 704 1.4- 0.1+
990512 704 0.0 0.6+ 990514 704 1.0- 0.8+ 990519 704 1.1+ 0.0
990512 704 0.5- 0.2+ 990514 684 0.2- 0.0 990519 704 0.6+ 1.6-
990512 704 0.6- 0.8+ 990514 860 0.6+ 1.0- 990519 704 1.0+ 1.0-
990513 758 0.3+ 1.6+ 990514 860 (2.1+ 1.4-) 990519 704 1.0+ 0.3-
990513 758 0.3- 0.7+ 990514 704 0.7- 0.5- 990519 704 0.5+ 1.8-
990513 704 0.1+ 0.1- 990514 704 1.1- 0.7+ 990519 118 0.7+ 0.3+
990513 758 0.0 0.4+ 990514 704 0.8+ 0.6+ 990519 118 0.3- 0.4+
990513 704 0.2+ 0.2- 990514 704 0.5- 0.5- 990519 118 0.5+ 0.4+
990513 683 0.1+ 0.5- 990514 704 0.3+ 0.2+ 990520 905 (3.3+ 2.0-)
990513 719 0.5- 0.7- 990514 704 0.6+ 0.4- 990520 905 (2.3+ 0.2+)
990513 704 0.9- 1.0+ 990514 704 0.8- 1.5+ 990524 658 0.1- 0.1+
990513 719 1.0- 0.7- 990514 704 1.0+ 0.6+ 990524 658 0.0 0.0
990513 704 0.6- 0.1+ 990514 704 0.4+ 1.1- 990524 658 0.3+ 0.2+
990513 683 0.2+ 0.3- 990514 557 0.3+ 0.2+ 990526 711 1.0- 0.3-
990513 704 0.5+ 0.2+ 990515 704 0.3+ 0.7- 990526 711 0.7- 0.3-
990513 734 1.0- 0.5+ 990515 704 0.2+ 0.9+ 990527 711 (2.2+ 1.4-)
990513 734 0.9- 0.8+ 990515 704 0.8+ 0.5- 990527 711 1.7- 0.2-
990513 719 0.4+ 0.4- 990515 704 0.4- 0.1- 990604 703 0.5- 0.4+
990513 734 0.5- 0.1+ 990515 704 0.8+ 1.1- 990604 703 0.1+ 0.6-
990513 719 0.6- 0.8+ 990515 704 0.7- 0.1- 990604 703 0.4+ 0.7-
990513 683 0.2- 0.3- 990515 704 1.3- 0.2- 990604 703 0.0 0.4+
990513 704 0.4- 0.2- 990515 704 0.6- 0.4- 990608 360 0.3+ 0.0
990513 704 0.1+ 0.2+ 990515 704 0.8+ 0.9- 990608 360 0.4+ 0.1-
990513 704 0.6- 0.7+ 990515 704 0.5+ 0.5- 990608 360 0.4+ 0.4+
990513 704 0.4+ 0.1+ 990515 704 0.6+ 0.6+ 990614 704 0.6+ 0.6-
990513 704 0.1+ 1.0- 990515 704 0.9+ 0.2+ 990614 704 0.3+ 0.5-
990513 704 0.4- 0.3+ 990515 704 1.0- 0.9- 990614 704 0.2- 0.1+
990513 704 0.2- 1.1+ 990515 704 0.5- 0.2- 990614 704 0.2- 0.0
990513 704 1.1+ 0.8+ 990515 428 0.4+ 0.3- 990614 704 0.9- 0.1-
990513 684 0.1- 0.2+ 990515 428 0.7+ 0.3- 990616 104 1.2+ 0.1-
990513 684 0.0 0.0 990515 426 0.4+ 0.1+ 990616 104 1.3+ 0.0
990513 704 1.2- 0.2+ 990515 426 0.4+ 0.0 990616 104 1.1+ 0.3+
990513 684 0.2+ 0.1+ 990515 426 0.3+ 0.1+ 990617 587 0.9+ 0.3+
990513 704 0.8- 0.7- 990516 046 0.0 0.1- 990617 587 1.5+ 1.1+
990513 704 1.2- 0.2- 990516 046 0.1+ 0.7+ 990901 413 0.5- 0.5-
990513 704 0.6+ 0.2+ 990516 046 0.4+ 0.3+ 990901 413 0.9+ 1.0+
990513 704 (2.1- 1.1-) 990516 046 0.2+ 0.1+ 990901 413 0.1- 1.8+
990513 704 0.3- 1.4+ 990516 118 0.3+ 0.2+ 000607 568 0.3+ 0.7-
990513 704 0.5- 0.3+ 990516 046 0.4+ 0.2+ 000607 568 0.2+ 0.6-
990513 428 0.3- 0.3+ 990516 118 0.3+ 0.2- 000608 568 0.2+ 0.5-
990513 428 1.1+ 0.4+ 990516 118 0.0 0.2-
Ephemeris:
1999 JT6 a,e,i = 2.13, 0.58, 10 q = 0.8991
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2000 06 05 20 47.36 -25 03.8 2.650 3.358 126.8 14.0 21.7
2000 06 15 20 42.68 -25 51.4 2.545 3.364 137.4 11.8 21.6
2000 06 25 20 35.63 -26 45.1 2.459 3.367 148.4 9.1 21.4
2000 07 05 20 26.44 -27 40.9 2.399 3.369 159.4 6.1 21.2
2000 07 15 20 15.67 -28 33.9 2.367 3.370 169.0 3.3 21.0
2000 07 25 20 04.11 -29 19.5 2.365 3.369 169.8 3.1 21.0
2000 08 04 19 52.70 -29 54.2 2.393 3.367 160.5 5.8 21.2
2000 08 14 19 42.41 -30 16.6 2.450 3.363 149.5 8.8 21.4
2000 08 24 19 33.97 -30 27.1 2.533 3.357 138.5 11.5 21.6
2000 09 03 19 27.89 -30 27.4 2.637 3.350 127.7 13.8 21.7
2000 09 13 19 24.39 -30 19.7 2.756 3.342 117.5 15.5 21.9
2000 09 23 19 23.45 -30 06.0 2.887 3.332 107.7 16.7 22.0
Gareth V. Williams (C) Copyright 2000 MPC M.P.E.C. 2000-L31
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