MPEC 2000-Y24: 1999 JO8
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M.P.E.C. 2000-Y24 Issued 2000 Dec. 21, 00:33 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
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1999 JO8
Revision to MPEC 1999-J55
Observations:
J99J08O FC2000 12 05.38413 05 42 17.23 +24 39 13.2 693
J99J08O FC2000 12 05.38722 05 42 17.04 +24 39 13.7 693
J99J08O FC2000 12 05.39030 05 42 16.80 +24 39 14.4 693
J99J08O 7C2000 12 20.29512 05 26 15.33 +25 15 12.9 22 R 696
J99J08O 7C2000 12 20.29916 05 26 14.98 +25 15 13.6 696
Observer details:
693 Catalina Station, Tucson. Observer C. W. Hergenrother. 1.5-m reflector
+ CCD.
696 Whipple Observatory, Mt. Hopkins. Observer T. B. Spahr. 1.2-m reflector
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
001205 693 2.2- 1.3- 001220 696 3.1- 0.8- MPC 36542 +0.00007 day
Orbital elements:
1999 JO8
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5 Williams
M 143.05291 (2000.0) P Q
n 0.22822438 Peri. 204.72321 +0.22812998 +0.88164763
a 2.6519257 Node 80.70507 -0.80908858 +0.40768689
e 0.5732027 Incl. 24.74619 -0.54160169 -0.23767384
P 4.32 H 17.0 G 0.15 U 2
Residuals in seconds of arc
990513 704 1.6- 0.5+ 990525 629 0.2+ 0.7- 990609 726 0.1- 0.7-
990513 704 0.4+ 0.2+ 990525 860 0.4+ 0.2- 990609 726 0.7- 0.7-
990513 704 0.7- 0.8+ 990525 860 0.2+ 0.5- 990609 726 0.1- 0.9-
990513 704 0.0 0.5- 990525 860 0.5+ 0.3- 990609 726 0.0 0.7-
990513 704 0.1+ 0.3+ 990525 688 0.2+ 0.5+ 990609 726 0.0 0.6-
990514 704 0.1- 1.4+ 990525 688 0.0 0.5+ 990609 726 0.1- 0.7-
990514 704 0.1- 0.0 990526 658 0.5+ 0.3+ 990609 900 0.2+ 0.2+
990514 704 0.6- 0.9+ 990526 658 0.3+ 0.5+ 990609 900 0.0 0.0
990514 704 0.7+ 0.7+ 990526 658 0.1+ 0.0 990609 469 0.3+ 0.9-
990514 704 0.3+ 1.2- 990526 118 0.0 0.8- 990609 469 0.0 0.9-
990515 704 0.7- 1.6+ 990526 118 0.5+ 0.8- 990612 108 0.4+ 0.1-
990515 704 1.6- 1.0+ 990526 118 0.1+ 0.6- 990612 108 0.1- 0.0
990515 704 1.3- 1.3+ 990526 151 0.3- 0.9- 990612 108 0.9+ 0.5+
990515 704 0.2- 0.9+ 990526 151 0.2- 0.3+ 990613 726 0.4- 0.2-
990515 704 1.2- 0.7+ 990526 151 0.3+ 0.3- 990613 726 0.3- 0.3-
990515 704 0.1- 0.8+ 990526 151 0.8- 0.3+ 990613 726 0.3- 0.2-
990515 704 0.0 1.0+ 990526 151 0.2- 0.3- 990613 726 0.3- 0.2-
990515 704 0.0 2.0+ 990526 151 0.1+ 0.2+ 990613 726 0.3- 0.3-
990515 704 0.3- 0.9+ 990526 127 0.9+ 0.2+ 990613 726 0.4- 0.3-
990515 704 0.2- 0.7+ 990526 127 0.4- 0.5+ 990614 704 0.5- 0.5+
990515 704 0.9- 0.9+ 990527 127 1.0+ 0.5+ 990614 704 0.4- 0.4+
990515 704 1.2- 0.9+ 990527 127 1.3+ 0.5+ 990614 704 0.5- 0.4+
990515 704 0.1- 1.1+ 990527 046 0.2+ 0.7+ 990614 704 1.3+ 1.3+
990515 704 0.7- 1.0+ 990527 046 0.0 0.6+ 990614 704 0.1- 0.7+
990515 704 0.5- 0.3+ 990527 046 0.1+ 0.6+ 990616 726 0.7- 0.4-
990515 426 0.0 0.7+ 990528 104 0.6- 0.3- 990616 726 0.8- 0.7-
990515 426 0.0 0.7+ 990528 104 0.3- 0.2- 990616 726 0.7- 0.7-
990515 426 0.2- 0.6+ 990528 104 0.3- 1.5- 990616 726 0.5- 0.3-
990515 046 0.1+ 0.9+ 990528 104 0.1+ 0.6- 990616 726 0.8- 0.4-
990515 046 1.9+ 0.4+ 990528 104 0.3+ 0.0 990617 610 0.4- 0.3-
990515 046 0.2+ 0.5+ 990529 900 0.1- 0.9+ 990617 610 0.4- 0.4-
990515 046 0.6- 0.3+ 990529 900 0.3- 0.2+ 990617 610 0.3- 0.6-
990516 118 0.2+ 0.6+ 990529 610 0.3+ 1.4- 990617 610 0.3- 0.7-
990516 118 0.2+ 0.6+ 990529 610 0.0 1.4- 990617 610 0.2- 0.8-
990516 118 0.4+ 0.7+ 990529 610 1.0- 0.3- 990617 151 0.0 0.1+
990516 739 0.6+ 2.4+ 990529 610 0.9- 0.2- 990617 151 0.1- 0.0
990516 739 1.8+ 0.9- 990529 610 1.0- 0.1- 990617 151 0.0 0.4-
990516 739 0.9- 1.4+ 990529 610 0.9- 0.1- 990617 151 0.1+ 0.5-
990516 739 1.1+ 0.1+ 990529 610 0.9- 0.0 990620 540 0.6- 0.4-
990516 739 0.1+ 0.5- 990530 151 0.5- 0.2- 990620 540 0.3- 0.5-
990516 739 1.8+ 0.6+ 990530 151 0.1+ 0.6+ 990620 540 0.3+ 0.0
990516 739 0.1+ 0.3- 990530 151 0.0 0.1+ 990620 540 0.1- 0.3-
990516 540 0.1+ 0.5+ 990530 151 0.0 0.3- 990622 428 0.2+ 1.4+
990516 540 0.2+ 0.5+ 990530 151 0.0 0.3- 990622 428 0.0 1.8+
990516 540 0.5+ 0.6+ 990530 151 0.2- 0.2+ 990622 428 0.3+ 1.8+
990517 704 0.3+ 1.5- 990531 402 0.3+ 0.2+ 990622 428 0.4+ 1.4+
990517 704 0.3+ 0.3- 990531 402 0.2+ 0.1+ 990622 620 0.2+ 0.8+
990517 704 0.4- 1.1- 990531 402 0.2+ 0.0 990622 620 0.3+ 0.8+
990517 704 0.6+ 0.9- 990601 610 0.8- 1.2+ 990622 620 0.3- 1.3+
990517 704 0.3- 0.4- 990601 610 0.9- 0.8+ 990622 620 0.3+ 0.4+
990517 900 0.2+ 0.3- 990601 610 0.7- 0.4+ 990625 428 0.5- 1.0-
990517 900 0.4- 0.2- 990601 610 0.7- 0.0 990625 428 0.4- 0.8-
990517 151 0.6- 0.9- 990601 610 0.6- 0.4- 990625 428 0.3- 1.2-
990517 151 0.0 1.0- 990601 118 0.3+ 0.6+ 990625 428 0.4- 1.0-
990517 151 0.3- 1.5- 990601 118 0.2+ 0.6+ 990625 428 0.5- 0.7-
990517 151 0.3+ 1.7- 990603 828 0.2- 0.4- 990629 428 0.7- 0.1-
990517 151 0.8- 0.8- 990603 828 0.5+ 0.3- 990629 428 0.7- 0.0
990517 151 0.1- 0.7- 990603 726 0.0 0.1- 990629 428 0.5- 0.2-
990517 636 0.3+ 0.1+ 990603 726 0.3- 0.1- 990629 428 0.2- 0.0
990517 636 0.1- 0.3+ 990603 726 0.6+ 0.6- 990701 428 0.1+ 0.0
990518 726 0.6- 1.5- 990603 726 0.4- 0.4- 990701 428 0.3- 0.1+
990518 726 0.2- 1.3- 990603 726 0.4- 0.1- 990701 428 0.4- 0.2-
990518 726 0.2+ 2.0- 990604 118 0.4+ 0.5+ 990704 428 0.1+ 0.0
990518 726 0.4- 0.5- 990604 118 0.4+ 0.5+ 990704 428 0.1- 0.0
990519 557 0.2+ 0.1+ 990604 402 0.2+ 0.2+ 990704 428 0.4+ 0.4+
990519 557 0.0 0.1- 990604 402 0.4+ 0.2+ 990707 428 1.3+ 0.2+
990519 151 0.3+ 0.7- 990604 402 0.2+ 0.2+ 990707 428 0.9+ 0.0
990519 151 0.2- 0.6- 990604 610 0.1- 0.1+ 990707 428 1.2+ 0.2+
990519 151 0.6- 0.2- 990604 610 0.2+ 0.1+ 990707 428 1.1+ 0.3+
990519 151 1.0- 0.4- 990604 151 1.3+ 1.3+ 990714 428 1.5+ 1.7+
990519 151 0.8- 0.8- 990604 610 0.2+ 0.2+ 990715 428 0.7+ 0.8-
990519 557 0.0 0.0 990604 121 0.6+ 0.4+ 990715 428 0.7+ 0.2-
990519 557 0.2- 0.2- 990604 151 0.4+ 0.5+ 990715 428 0.6+ 0.7-
990520 118 0.5+ 0.1+ 990604 121 0.5+ 0.2+ 990719 422 0.1+ 0.0
990520 118 0.3+ 0.0 990604 610 0.3+ 0.3+ 990719 422 0.1+ 0.0
990520 118 0.5+ 0.1+ 990604 151 0.5+ 0.3+ 990719 422 0.2+ 0.1-
990520 860 0.0 0.3- 990604 151 0.3+ 0.3+ 990722 322 0.3+ 0.5-
990520 860 0.6+ 0.6- 990604 610 0.4+ 0.3+ 990722 322 1.2+ 0.7+
990520 860 0.0 0.1- 990604 151 0.3+ 0.4+ 990724 322 0.3+ 0.1-
990520 360 0.0 0.2- 990604 151 0.2+ 0.4+ 990724 322 0.3+ 0.6-
990520 360 0.1- 0.3- 990604 121 0.1+ 0.2+ 990724 322 0.0 0.5+
990520 360 0.1+ 0.2- 990604 121 0.4+ 0.4+ 990724 322 0.9+ 0.3-
990520 636 0.5+ 0.7+ 990604 108 0.8+ 0.6- 990724 322 0.6+ 0.5-
990520 636 0.6+ 0.8+ 990604 108 1.4+ 1.1- 990724 322 0.0 0.3+
990521 636 0.3+ 0.6+ 990604 108 1.0+ 0.2- 990729 322 0.4- 0.2+
990521 557 0.1+ 0.2- 990604 108 1.2+ 1.3- 990729 322 0.8+ 0.1-
990521 557 0.2+ 0.1+ 990604 121 0.1- 0.1+ 990729 322 0.0 0.2+
990521 557 0.1- 0.0 990604 121 0.2- 0.2- 990731 322 0.8+ 0.3-
990521 557 0.0 0.1+ 990604 121 0.2- 0.1- 990731 322 0.3+ 0.5-
990521 161 1.4- 1.5- 990605 828 0.4+ 0.1+ 990731 322 0.9+ 0.0
990523 726 0.3- 0.1- 990605 828 0.3+ 0.2+ 990804 413 0.3+ 0.1-
990523 726 2.3+ 1.0- 990605 828 0.1- 0.2+ 990804 413 0.3+ 0.1-
990523 726 0.3+ 0.5- 990605 360 0.0 0.3+ 990815 422 0.0 0.3+
990523 726 0.6+ 0.2- 990605 360 0.1+ 0.4+ 990815 422 0.1- 0.3+
990523 726 0.2+ 0.3+ 990605 360 0.2+ 0.4+ 990815 422 0.2- 0.3+
990523 726 0.4+ 0.4- 990606 629 0.8- 0.3+ 990819 322 0.2+ 0.0
990523 726 0.0 0.2- 990606 629 0.2+ 0.4+ 990819 322 0.2- 0.0
990523 610 0.3- 0.4- 990606 629 0.2+ 0.7+ 990819 322 0.2- 0.1+
990523 610 0.4- 0.3- 990606 629 0.2+ 0.2+ 990831 322 0.1- 0.3+
990523 610 0.3- 0.3- 990607 118 0.1- 0.1+ 990831 322 0.1+ 0.7+
990523 610 0.3- 0.2- 990607 118 0.2- 0.1+ 990831 322 0.5- 0.5+
990523 610 0.2- 0.1- 990607 118 0.2- 0.1+ 990831 413 0.0 0.1+
990524 540 0.4+ 0.4+ 990608 704 0.1+ 0.5+ 990831 413 0.1- 0.2+
990524 540 0.4+ 0.1+ 990608 704 0.6+ 0.2+ 990914 413 0.2+ 0.2+
990524 540 0.9+ 0.4+ 990608 704 0.2+ 0.1- 990914 413 0.2+ 0.4+
990524 151 1.2+ 0.1+ 990608 704 0.3- 0.0 990917 322 2.6+ 0.7-
990524 151 0.0 0.2+ 990608 704 0.1- 0.2- 990917 322 (3.6+ 2.4-)
990524 151 0.2+ 0.3+ 990608 151 2.5- 2.1+ 990928 413 0.1+ 0.0
990524 151 0.0 0.1- 990608 151 0.2- 0.6- 990928 413 0.2+ 0.0
990524 151 0.6- 0.1+ 990608 151 0.3- 0.6- 991009 428 1.5+ 0.6+
990524 151 0.0 0.2- 990608 151 0.1- 0.7- 991009 428 1.5+ 0.6+
990524 557 0.2+ 0.1+ 990608 151 0.2- 0.3- 001205 693 0.2+ 0.2-
990524 557 0.0 0.2+ 990608 151 0.4- 0.6- 001205 693 0.3+ 0.2-
990524 557 0.3+ 0.2+ 990608 610 0.3+ 0.6- 001205 693 0.2- 0.0
990525 629 0.8+ 0.1- 990608 610 0.1+ 0.5- 001220 696 0.4+ 0.3+
990525 629 0.9+ 0.1+ 990608 610 0.0 0.5- 001220 696 0.8- 0.4+
990525 629 0.6- 0.1- 990608 610 0.2- 0.4-
990525 629 0.5+ 1.4- 990608 610 0.3- 0.4-
Ephemeris:
1999 JO8 a,e,i = 2.65, 0.57, 25 q = 1.1318
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2000 12 12 05 35.20 +24 56.4 2.823 3.805 175.6 1.1 22.3
2000 12 22 05 24.45 +25 18.7 2.857 3.832 171.3 2.2 22.5
2001 01 01 05 14.40 +25 36.5 2.924 3.858 158.9 5.3 22.7
2001 01 11 05 05.77 +25 50.8 3.022 3.883 146.9 8.0 22.9
2001 01 21 04 59.05 +26 02.8 3.146 3.907 135.2 10.2 23.1
Gareth V. Williams (C) Copyright 2000 MPC M.P.E.C. 2000-Y24
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