MPEC 1999-P05 : 1995 UB4
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M.P.E.C. 1999-P05 Issued 1999 Aug. 3, 15:28 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
1995 UB4
Revision to MPEC 1995-U06
Observations:
J95U04B 1C1999 08 01.64297 22 38 44.59 -25 38 10.1 413
J95U04B 1C1999 08 01.64698 22 38 44.45 -25 38 11.4 413
J95U04B 1C1999 08 01.65071 22 38 44.28 -25 38 12.9 413
J95U04B 1C1999 08 02.68451 22 38 08.94 -25 45 07.4 413
J95U04B 1C1999 08 02.68924 22 38 08.76 -25 45 09.4 413
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, reference and Delta-T
990801 413 93.5+ 44.3+ 990802 413 94.3+ 44.6+ MPC 28318 -0.052 day
Orbital elements:
1995 UB4
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Williams
M 318.25126 (2000.0) P Q
n 0.23380260 Peri. 17.16786 +0.64559470 -0.75875651
a 2.6095752 Node 32.77601 +0.68054501 +0.52016493
e 0.4104746 Incl. 9.20290 +0.34650538 +0.39206761
P 4.22 H 16.5 G 0.15 U 2
Residuals in seconds of arc
951020 411 0.1- 0.8+ 951112 360 0.1+ 0.5- 951211 108 1.5- 1.3+
951020 411 1.3+ 0.8- 951112 360 0.1- 0.6- 951211 108 0.6- 0.5+
951025 411 0.2- 0.0 951114 587 0.2- 0.0 951211 108 0.3+ 0.2+
951025 411 0.3+ 0.3+ 951114 587 0.0 0.5+ 951217 360 0.2+ 0.1+
951027 411 0.2- 0.6+ 951114 587 0.5- 1.0+ 951217 360 0.0 0.0
951027 411 0.6- 0.2+ 951116 360 0.3+ 0.8+ 951217 360 0.2- 0.1-
951027 411 0.3+ 1.2+ 951116 360 0.4+ 1.0+ 951218 801 0.3+ 0.7-
951029 658 1.0- 0.1+ 951118 801 0.2+ 0.0 951219 108 (2.2- 0.6+)
951029 658 0.8- 0.1+ 951118 801 0.1- 0.1+ 951219 108 (2.3- 0.0 )
951029 658 0.9- 0.1+ 951118 411 0.3- 0.1- 951220 587 (1.0- 2.2-)
951029 413 0.2+ 0.0 951118 411 0.0 0.8+ 951220 587 0.2- 1.2-
951029 413 0.1+ 0.1+ 951118 411 0.5+ 0.4- 951223 801 1.1+ 0.8-
951030 658 0.7- 0.1- 951118 900 0.2- 1.2+ 951224 658 0.3+ 0.5-
951030 658 0.7- 0.0 951120 104 0.0 0.7+ 951224 658 0.1- 0.3-
951030 658 0.8- 0.1- 951120 104 0.4- 0.0 951224 658 0.2- 0.4-
951030 355 0.9+ 1.4- 951120 104 0.4- 0.4- 951224 658 0.1- 0.3-
951030 900 0.3+ 0.2+ 951120 104 0.5- 0.3- 960110 413 0.7- 0.1-
951030 355 1.2+ 0.5- 951121 108 1.9+ 0.1+ 960110 413 0.0 0.1+
951030 413 0.1+ 0.1+ 951121 108 1.6+ 0.4+ 960112 658 0.6- 0.4+
951030 413 0.1- 0.1- 951121 118 0.2+ 0.2- 960112 658 0.4- 0.1+
951031 658 0.7- 0.3- 951123 801 0.1+ 0.3- 960112 658 0.7- 0.3+
951031 658 0.7- 0.2- 951123 801 0.1+ 0.4- 960115 118 0.7+ 0.0
951031 658 0.6- 0.3- 951123 104 0.1- 0.4- 960115 118 0.6+ 0.1+
951101 411 1.0- 0.8+ 951123 104 0.5+ 0.5+ 960116 046 1.2- 0.4+
951101 411 0.2- 0.2- 951123 104 0.4+ 0.4+ 960116 046 0.3- 0.3+
951101 411 0.2+ 0.1+ 951123 104 0.4+ 0.2+ 960116 046 0.4+ 0.3+
951101 897 0.3- 0.0 951123 595 0.2+ 0.2+ 960117 118 0.6+ 0.0
951101 897 0.2- 0.2- 951123 595 0.2+ 0.1+ 960117 118 0.1- 0.3+
951102 608 0.2+ 0.0 951124 595 0.1- 0.7+ 960117 046 0.0 0.7+
951102 608 0.2+ 0.4- 951124 595 0.5- 0.5+ 960117 046 0.0 0.4+
951102 900 0.3- 0.0 951124 587 0.5+ 0.8- 960117 046 0.0 0.3+
951102 900 0.1- 0.0 951124 587 0.7- 0.4- 960211 711 0.4+ 0.6-
951106 608 0.3+ 0.7+ 951125 587 1.4+ 0.4+ 960211 711 0.1+ 0.5-
951106 608 0.0 1.9- 951129 711 0.1+ 0.0 960216 658 0.4- 0.0
951109 411 0.4- 0.2+ 951129 711 0.2+ 0.0 960216 658 0.4- 0.4+
951109 411 0.0 0.8- 951129 897 0.7+ 0.0 960216 658 0.3- 0.3+
951109 411 0.3+ 0.1+ 951129 897 0.1+ 1.0- 990801 413 0.1+ 0.1-
951111 608 0.4+ 0.0 951129 897 0.3+ 0.9- 990801 413 0.1+ 0.2+
951111 608 0.3+ 0.2- 951210 360 0.2+ 0.0 990801 413 0.4- 0.2+
951111 540 0.0 0.1- 951210 360 0.4+ 0.0 990802 413 0.0 0.1+
951111 540 0.0 0.3- 951210 360 0.1+ 0.2+ 990802 413 0.0 0.0
951111 540 0.1- 0.0 951210 108 (2.2- 0.2+)
951112 360 0.1+ 0.6- 951210 108 0.7- 0.4-
Ephemeris:
1995 UB4 a,e,i = 2.61, 0.41, 9 q = 1.5384
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 07 31 22 39.60 -25 27.3 1.219 2.165 151.3 13.0 19.4
1999 08 10 22 32.99 -26 33.9 1.138 2.117 159.4 9.7 19.0
1999 08 20 22 23.45 -27 34.1 1.079 2.070 163.7 7.9 18.8
1999 08 30 22 12.14 -28 15.2 1.042 2.022 160.4 9.6 18.8
1999 09 09 22 00.70 -28 27.5 1.028 1.975 152.1 13.8 18.8
1999 09 19 21 51.01 -28 05.7 1.034 1.929 142.3 18.6 19.0
1999 09 29 21 44.61 -27 11.1 1.056 1.884 132.5 23.1 19.1
1999 10 09 21 42.30 -25 48.2 1.092 1.840 123.2 27.0 19.2
1999 10 19 21 44.30 -24 02.4 1.137 1.798 114.7 30.2 19.4
1999 10 29 21 50.34 -21 58.2 1.188 1.757 107.0 32.7 19.5
1999 11 08 21 59.93 -19 38.5 1.243 1.719 100.0 34.6 19.6
1999 11 18 22 12.55 -17 04.9 1.300 1.684 93.7 35.9 19.7
1999 11 28 22 27.68 -14 18.9 1.358 1.651 88.1 36.7 19.7
1999 12 08 22 44.89 -11 21.3 1.415 1.622 83.0 37.1 19.8
1999 12 18 23 03.86 -08 13.2 1.473 1.597 78.3 37.1 19.9
1999 12 28 23 24.30 -04 56.5 1.530 1.576 74.1 36.9 19.9
2000 01 07 23 46.03 -01 32.9 1.588 1.559 70.2 36.4 20.0
2000 01 17 00 08.93 +01 55.1 1.646 1.547 66.6 35.7 20.0
2000 01 27 00 32.90 +05 24.5 1.706 1.540 63.4 34.8 20.0
2000 02 06 00 57.91 +08 51.9 1.767 1.539 60.3 33.8 20.1
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-P05
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