MPEC 2000-F42 : 1999 XA143
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M.P.E.C. 2000-F42 Issued 2000 Mar. 29, 23:34 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 XA143
Revision to MPEC 2000-A15
Observations:
J99XE3A 1 1994 12 02.48750 09 20 38.97 +02 27 20.2 675
J99XE3A 1 1994 12 02.53958 09 20 43.65 +02 27 42.7 675
Observer details:
675 Palomar Mountain. Observers J. Mueller, D. Griffith. Trail located and
measured by A. Boattini, G. Forti, M. Tombelli, L. Tesi.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
941202 675 0.05+ 0.01+ 941202 675 0.05+ 0.01+ MPC 38851 -0.066 day
Orbital elements:
1999 XA143
Epoch 2000 Feb. 26.0 TT = JDT 2451600.5 Williams
M 345.68774 (2000.0) P Q
n 0.39369796 Peri. 103.91787 -0.56895567 +0.60618126
a 1.8437156 Node 116.84210 -0.75197419 -0.65704413
e 0.5821385 Incl. 38.52353 +0.33290279 -0.44814874
P 2.50 H 16.4 G 0.15 U 3
Residuals in seconds of arc
941202 675 0.9- 1.1- 000106 046 0.4+ 0.2+ 000125 610 0.0 0.1-
941202 675 1.5+ 1.0- 000106 046 0.3+ 0.3+ 000125 610 0.3+ 0.2-
991214 704 0.0 0.8- 000106 046 0.2+ 0.3+ 000125 610 0.5+ 0.2-
991214 704 0.3- 0.1+ 000106 113 0.2+ 0.2- 000125 610 0.8+ 0.1-
991214 704 0.3+ 0.6+ 000106 113 0.2+ 0.4- 000126 610 1.0+ 0.2-
991214 704 0.5- 0.2+ 000106 113 0.1+ 0.3- 000126 118 0.1- 0.3+
991214 704 0.3+ 1.2- 000106 113 0.2+ 0.1- 000126 118 0.3- 0.1+
991215 704 0.3- 0.6- 000106 113 0.1- 0.3- 000126 610 0.9- 0.3-
991215 704 0.4- 0.4- 000106 118 0.0 0.1- 000126 610 0.8- 0.3-
991215 704 0.8- 0.0 000106 118 0.3+ 0.0 000127 610 0.8- 0.2-
991215 704 0.9- 0.4- 000106 118 0.0 0.0 000127 610 0.8- 0.0
991215 704 1.3- 0.3+ 000106 704 0.4+ 0.0 000127 610 0.8- 0.0
000104 704 0.4+ 0.3+ 000106 651 0.1- 0.3- 000127 171 0.7+ 1.7-
000104 704 0.2+ 0.5+ 000106 651 0.2- 0.1- 000128 610 0.2- 0.3-
000104 704 0.4+ 0.8+ 000106 651 0.2- 0.2- 000128 610 0.3- 0.3-
000104 704 0.3+ 0.2+ 000106 704 0.1+ 0.0 000128 171 (2.1+ 2.9+)
000104 704 0.1+ 0.0 000106 704 0.0 0.3+ 000128 610 0.4- 0.4-
000105 704 0.2+ 0.2+ 000106 704 0.4+ 0.3- 000128 610 0.5- 0.5-
000105 704 0.3+ 0.6+ 000106 704 0.5+ 0.1- 000128 610 0.6- 0.5-
000105 704 0.4+ 0.3+ 000106 704 0.0 0.1+ 000128 171 0.8- 0.1-
000105 678 0.3- 0.3+ 000106 704 0.1+ 0.2- 000130 610 (2.4- 3.3-)
000105 678 0.7- 0.3- 000106 704 0.2+ 0.0 000130 610 (2.2- 3.1-)
000105 704 0.1+ 0.2+ 000106 704 0.1- 0.2+ 000131 610 (2.1- 3.1-)
000105 678 0.5- 0.2- 000106 704 0.4+ 0.3+ 000131 610 (1.9- 2.9-)
000105 704 0.5+ 0.6+ 000106 670 0.5- 0.4- 000131 610 (1.8- 2.6-)
000105 678 0.1+ 0.3+ 000106 673 1.8+ 1.1- 000202 118 0.8+ 0.6+
000105 670 0.3+ 0.1+ 000106 673 (2.4+ 1.6+) 000202 118 0.6+ 0.3+
000105 670 0.6+ 0.4+ 000106 673 (1.5+ 2.7+) 000202 118 0.7+ 0.5+
000105 422 0.2- 0.4+ 000106 670 1.0- 1.3- 000202 355 0.1+ 0.5+
000105 422 0.0 0.0 000107 106 0.1- 0.5+ 000202 355 0.8+ 0.4+
000105 422 0.1- 0.0 000107 106 0.1- 0.3+ 000202 355 0.0 0.2+
000105 587 0.2+ 0.2+ 000107 106 0.4+ 0.4+ 000205 151 (2.3- 0.4+)
000105 587 0.1+ 0.0 000115 046 0.1+ 0.6+ 000205 151 0.6- 0.2-
000105 557 0.3- 0.4+ 000115 046 0.0 0.4+ 000205 151 0.0 0.2-
000105 557 0.1+ 0.2+ 000115 046 0.1- 0.4+ 000205 151 1.4+ 0.6+
000105 557 0.2- 0.5+ 000115 046 0.1- 0.5+ 000205 151 0.5- 0.9-
000105 611 0.2- 0.2- 000115 046 0.2- 0.4+ 000213 587 0.8+ 0.1-
000106 611 0.5- 0.6- 000118 402 0.3- 0.0 000213 587 0.9- 0.3-
000106 611 0.1+ 0.2+ 000118 402 0.4- 0.1-
000106 046 0.2+ 0.4+ 000118 402 0.2- 0.2+
Ephemeris:
1999 XA143 a,e,i = 1.84, 0.58, 39 q = 0.7704
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2000 03 27 21 27.68 +32 02.5 0.695 0.776 50.8 85.2 18.0
2000 04 06 21 48.02 +25 29.5 0.763 0.772 49.7 81.4 18.1
2000 04 16 22 10.96 +19 18.1 0.819 0.797 50.6 76.8 18.2
2000 04 26 22 35.91 +13 33.5 0.862 0.846 53.1 72.2 18.2
2000 05 06 23 01.81 +08 15.2 0.894 0.913 56.9 67.9 18.3
2000 05 16 23 27.65 +03 16.5 0.915 0.992 61.7 63.9 18.5
2000 05 26 23 52.73 -01 32.5 0.927 1.078 67.3 60.1 18.6
2000 06 05 00 16.47 -06 21.8 0.933 1.168 73.6 56.4 18.6
2000 06 15 00 38.37 -11 20.7 0.934 1.258 80.3 52.7 18.7
2000 06 25 00 58.02 -16 35.5 0.934 1.348 87.4 48.9 18.7
2000 07 05 01 14.90 -22 09.6 0.935 1.437 94.7 44.8 18.8
2000 07 15 01 28.37 -28 01.3 0.942 1.523 102.0 40.7 18.8
2000 07 25 01 37.72 -34 03.0 0.958 1.607 109.0 36.7 18.8
2000 08 04 01 42.02 -40 01.8 0.984 1.688 115.3 32.9 18.9
2000 08 14 01 40.27 -45 38.6 1.025 1.767 120.2 29.7 19.0
2000 08 24 01 31.78 -50 32.2 1.080 1.842 123.4 27.3 19.1
2000 09 03 01 16.51 -54 22.5 1.152 1.914 124.6 25.7 19.3
2000 09 13 00 56.01 -56 54.4 1.238 1.984 123.9 24.9 19.5
2000 09 23 00 33.44 -58 04.1 1.339 2.050 121.5 24.7 19.7
2000 10 03 00 12.52 -57 59.0 1.453 2.114 117.8 24.7 20.0
2000 10 13 23 56.10 -56 54.6 1.577 2.175 113.4 24.9 20.2
2000 10 23 23 45.22 -55 08.6 1.710 2.233 108.4 25.0 20.5
2000 11 02 23 39.67 -52 55.9 1.850 2.288 103.1 25.0 20.7
2000 11 12 23 38.67 -50 27.4 1.995 2.341 97.6 24.8 20.9
2000 11 22 23 41.25 -47 50.7 2.143 2.391 92.0 24.4 21.1
2000 12 02 23 46.60 -45 10.3 2.292 2.439 86.5 23.8 21.3
2000 12 12 23 54.07 -42 29.4 2.441 2.484 80.9 23.0 21.4
2000 12 22 00 03.12 -39 50.1 2.587 2.527 75.5 22.1 21.5
2001 01 01 00 13.40 -37 13.6 2.730 2.567 70.1 21.1 21.7
Gareth V. Williams (C) Copyright 2000 MPC M.P.E.C. 2000-F42
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