MPEC 1999-X21 : 1994 AW1
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M.P.E.C. 1999-X21 Issued 1999 Dec. 10, 16:52 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
1994 AW1
Revision to MPEC 1994-B10
Observations:
J94A01W C1999 10 08.14757 09 36 25.17 +20 39 44.9 104
J94A01W C1999 10 08.15097 09 36 25.80 +20 39 38.8 104
J94A01W C1999 10 08.15782 09 36 26.96 +20 39 25.8 20.2 V 104
J94A01W 0C1999 12 08.51062 12 10 34.31 -14 01 05.8 675
J94A01W 0C1999 12 08.52194 12 10 36.02 -14 01 32.1 675
J94A01W 0C1999 12 08.53338 12 10 37.68 -14 01 58.3 675
Observer details:
104 San Marcello Pistoiese. Observers L. Tesi, A. Boattini, M. Tombelli.
Measurers L. Tesi, A. Boattini, M. Tombelli, G. Forti. 0.40-m f/5
reflector + CCD.
675 Palomar Mountain. Observers M. Hicks, K. Lawrence, T. McConnochie. 1.5-m
reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
991008 104 0.4- 0.7+ 991208 675 0.2+ 0.2- MPC 26191 -0.00012 day
Orbital elements:
1994 AW1 PHA 0.036A
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Williams
M 67.25253 (2000.0) P Q
n 0.84886860 Peri. 37.15099 +0.79498791 +0.47075572
a 1.1046950 Node 290.44725 -0.60659771 +0.62291384
e 0.0752999 Incl. 24.09983 +0.00578271 +0.62479388
P 1.16 H 17.4 G 0.15 U 2
Residuals in seconds of arc
940107 412 (1.3- 2.7-) 940119 046 0.2- 0.3+ 940201 657 1.3- 0.7+
940107 412 (0.9- 4.2-) 940119 046 0.1- 0.4+ 940201 657 0.7- 1.2+
940108 675 (1.6- 2.2-) 940119 046 0.1- 0.3+ 940201 657 0.6+ 1.0-
940108 675 2.0+ 1.3- 940119 046 0.1+ 0.4+ 940202 657 0.4- 0.4+
940111 675 0.6+ 0.1- 940119 046 0.2- 0.4+ 940202 657 0.4- 0.3+
940111 675 0.9- 0.9+ 940119 046 0.1- 0.3+ 940202 657 0.3- 0.3+
940111 675 0.4- 1.9- 940119 046 0.0 0.2+ 940208 658 1.2- 0.4-
940112 675 0.0 1.2- 940119 046 0.0 0.3+ 940208 658 1.0- 0.2+
940112 675 (0.9+ 3.1+) 940119 046 0.0 0.2+ 940208 658 1.3- 0.2-
940113 675 (3.0+ 2.5+) 940119 046 0.1- 0.4+ 940209 385 0.5- 0.7-
940113 670 1.3+ 0.7+ 940119 540 0.2+ 0.5+ 940209 385 0.7- 0.4-
940113 670 1.4+ 1.0+ 940119 540 0.1+ 0.3+ 940209 385 0.1- 1.2-
940113 670 0.6+ 0.2- 940119 540 0.6- 1.4+ 940209 557 0.4- 0.1-
940114 557 0.4+ 0.4- 940119 540 1.0- 0.3- 940209 557 0.8- 0.7-
940114 557 0.4+ 0.3- 940120 557 0.3+ 0.4+ 940209 557 1.3- 0.2+
940114 557 0.3+ 0.3- 940120 557 0.2+ 0.2+ 940209 557 0.6- 0.2+
940114 557 0.8+ 0.4+ 940120 557 0.3+ 0.4+ 940212 809 0.5- 0.2-
940114 557 1.2+ 1.0+ 940120 657 0.0 0.2+ 940212 587 0.9- 1.8-
940114 046 0.3+ 0.5- 940120 729 0.2- 1.0+ 940212 587 0.4- 0.4-
940114 046 0.4+ 0.6- 940120 657 0.2- 0.6+ 940213 809 0.2- 1.4+
940114 046 0.4+ 0.5- 940120 729 0.2- 1.0+ 940214 557 0.7- 0.0
940115 046 0.1+ 0.4- 940120 657 0.2+ 0.7+ 940214 557 0.5- 0.0
940115 046 0.0 0.3- 940120 729 0.5- 1.0+ 940214 557 0.6- 0.2+
940115 046 0.1- 0.1- 940120 657 0.1- 0.2+ 940214 557 0.4- 0.2+
940115 046 0.0 0.2- 940120 729 0.4- 0.9+ 940215 474 0.9- 0.2+
940115 046 0.0 0.0 940120 729 0.1- 1.1+ 940215 474 1.0- 0.3+
940115 046 0.0 0.1- 940121 413 0.7+ 0.7+ 940219 809 0.3- 0.0
940115 046 0.0 0.1- 940121 413 0.5+ 1.2+ 940220 413 1.0- 0.3+
940115 046 0.0 0.0 940121 046 0.4+ 0.7+ 940220 413 0.8- 0.2+
940115 046 0.2+ 0.1- 940121 046 0.1+ 0.3+ 940220 413 0.5- 0.2+
940115 046 0.1+ 0.1- 940121 046 0.4+ 0.3+ 940221 413 0.2+ 0.4-
940115 046 0.2+ 0.2+ 940121 046 0.4+ 0.5+ 940221 413 0.2+ 0.0
940115 046 0.3- 0.5- 940121 046 0.2+ 0.4+ 940318 413 0.2- 0.7+
940115 046 0.0 0.5- 940121 046 0.4+ 0.3+ 940318 413 0.7- 0.6+
940115 046 0.0 0.4- 940121 046 0.4+ 0.2+ 940318 413 0.0 0.0
940115 046 0.1- 0.3- 940121 046 0.2+ 0.5+ 940322 413 0.0 0.2+
940116 046 0.2+ 0.5- 940122 104 (0.4+ 2.3-) 940322 413 0.0 0.2+
940116 046 0.2+ 0.4- 940122 104 1.4+ 0.1- 940402 413 0.3+ 0.8+
940116 046 0.0 0.5- 940122 104 0.3+ 1.6- 940502 413 0.1+ 0.2+
940116 046 0.1+ 0.6- 940122 104 (0.8- 2.6-) 940504 413 0.9+ 0.1+
940116 046 0.1+ 0.6- 940122 587 0.1- 0.2+ 940504 413 0.3+ 0.3-
940116 675 (2.5+ 2.1-) 940122 587 0.7- 0.3+ 940617 413 1.6+ 0.0
940116 675 (0.8+ 2.1-) 940122 587 0.8- 0.9- 940617 413 1.4+ 0.1-
940116 385 0.4+ 0.9- 940123 413 0.1- 0.9- 940618 413 1.7+ 0.2-
940116 385 0.5+ 0.7- 940123 413 0.0 0.9- 940618 413 0.7+ 0.2+
940116 385 0.5+ 0.8- 940125 360 1.7- 0.9- 940725 413 0.2+ 0.7+
940116 385 0.5+ 0.7- 940125 360 1.5- 0.8- 940725 413 0.4+ 0.9+
940116 098 0.7- 1.0+ 940126 104 0.6- 0.8+ 940815 413 0.3+ 0.1+
940116 098 1.7- 1.7- 940126 104 0.1+ 0.4+ 940816 413 0.9+ 0.5-
940116 098 (3.3- 0.7-) 940126 104 (0.6- 2.2+) 940816 413 0.1- 0.6-
940116 098 (3.2- 0.8-) 940126 104 0.3- 1.4+ 940826 413 0.3+ 0.4+
940117 323 0.6+ 0.8+ 940127 104 1.0+ 0.5+ 940826 413 0.3+ 0.7+
940118 540 0.8- 1.0- 940127 104 (2.5+ 1.0-) 940917 413 0.0 0.1+
940118 540 0.1+ 0.3- 940127 104 0.2+ 0.2+ 940917 413 0.3+ 0.6+
940118 540 0.9+ 0.7- 940127 104 (0.9- 2.1-) 941004 658 1.4- 0.5-
940118 540 0.2- 0.0 940129 104 0.3+ 0.6- 941004 658 1.2- 0.8-
940118 540 0.2- 1.2- 940129 104 0.2- 0.7- 941004 658 1.4- 0.5+
940118 540 0.9+ 1.2+ 940129 104 0.1- 0.7+ 941004 658 0.7- 0.3-
940119 385 0.1- 0.3+ 940129 587 0.2- 0.6- 991008 104 0.5- 1.0+
940119 385 0.2- 0.4+ 940129 587 0.1- 0.8- 991008 104 0.4+ 0.6+
940119 385 0.2+ 0.3+ 940130 360 0.3- 0.5- 991008 104 0.7+ 0.8-
940119 557 0.1- 0.3+ 940130 360 0.0 0.3- 991208 675 0.0 0.0
940119 557 0.1+ 0.3+ 940130 897 0.3+ 0.5- 991208 675 0.5+ 0.2-
940119 046 0.3- 0.4+ 940130 897 0.4+ 0.3- 991208 675 0.1- 0.0
940119 046 0.0 0.4+ 940130 897 0.0 0.3-
Ephemeris:
1994 AW1 a,e,i = 1.10, 0.08, 24 q = 1.0215
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 12 08 12 09.28 -13 41.4 1.120 1.187 68.3 50.5 19.9
1999 12 18 12 34.93 -20 07.7 1.076 1.188 70.3 51.2 19.8
1999 12 28 13 02.18 -26 37.0 1.036 1.187 72.0 52.0 19.8
2000 01 07 13 31.83 -33 01.9 0.998 1.186 73.5 52.7 19.7
2000 01 17 14 04.85 -39 12.2 0.965 1.182 74.7 53.4 19.6
2000 01 27 14 42.50 -44 55.0 0.934 1.177 75.6 54.1 19.6
2000 02 06 15 26.07 -49 54.7 0.907 1.171 76.3 54.9 19.5
2000 02 16 16 16.43 -53 52.6 0.881 1.163 76.7 55.8 19.5
2000 02 26 17 13.25 -56 29.3 0.856 1.154 77.0 56.7 19.4
2000 03 07 18 13.92 -57 29.8 0.830 1.144 77.2 57.8 19.4
2000 03 17 19 13.84 -56 48.8 0.803 1.133 77.3 59.0 19.3
2000 03 27 20 08.77 -54 33.0 0.773 1.122 77.4 60.3 19.2
2000 04 06 20 56.52 -50 55.9 0.740 1.109 77.6 61.8 19.2
2000 04 16 21 37.03 -46 09.2 0.705 1.097 77.7 63.4 19.1
2000 04 26 22 11.50 -40 19.0 0.667 1.085 77.9 65.1 19.0
2000 05 06 22 41.40 -33 26.6 0.629 1.073 78.1 66.9 18.9
2000 05 16 23 08.07 -25 29.0 0.591 1.062 78.2 68.8 18.8
2000 05 26 23 32.79 -16 22.9 0.557 1.051 78.1 70.6 18.7
2000 06 05 23 56.69 -06 10.9 0.530 1.042 77.9 72.2 18.6
2000 06 15 00 20.79 +04 52.9 0.512 1.034 77.5 73.6 18.6
2000 06 25 00 46.30 +16 19.9 0.507 1.028 76.9 74.4 18.6
2000 07 05 01 14.48 +27 30.8 0.513 1.024 76.2 74.7 18.6
2000 07 15 01 46.81 +37 45.6 0.531 1.022 75.5 74.3 18.7
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-X21
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