MPEC 2000-A23 : 1999 WS1
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M.P.E.C. 2000-A23 Issued 2000 Jan. 6, 20:48 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 WS1
Revision to MPEC 1999-X22
Observations:
J99W01S 2 1993 05 17.25521 14 10 28.59 -15 54 19.7 16.0 V 675
J99W01S 2 1993 05 17.29774 14 10 26.23 -15 53 41.9 675
J99W01S 2 1993 05 19.22830 14 08 47.31 -15 25 10.8 675
J99W01S 2 1993 05 19.25347 14 08 45.93 -15 24 48.9 675
Observer details:
675 Palomar Mountain. Observers E. F. Helin, K. Lawrence. Images located and
measured by K. Lawrence. 0.46-m Schmidt.
Orbital elements:
1999 WS1
Epoch 2000 Feb. 26.0 TT = JDT 2451600.5 Williams
M 51.33577 (2000.0) P Q
n 0.17894028 Peri. 84.57520 +0.66473309 +0.71246645
a 3.1188702 Node 229.72687 -0.74706891 +0.63221700
e 0.5383488 Incl. 17.13343 -0.00423824 +0.30445560
P 5.51 H 13.7 G 0.15 U 3
Residuals in seconds of arc
930517 675 0.1+ 0.8- 991114 704 0.3+ 0.2- 991207 704 0.2- 0.5+
930517 675 0.2- 0.7- 991114 704 0.9+ 1.4- 991207 704 0.1+ 0.2+
930519 675 0.4+ 1.1+ 991114 703 0.4- 0.0 991207 704 0.0 0.2-
930519 675 0.3- 0.7+ 991114 704 0.2- 0.2- 991207 704 0.2+ 0.1+
990926 699 0.2+ 0.0 991114 703 0.3- 0.3+ 991207 704 0.4+ 0.1-
990926 699 0.6- 0.4+ 991114 704 0.4- 0.5- 991207 120 0.1+ 0.0
990926 699 0.1+ 0.4+ 991114 703 0.6- 0.1+ 991207 120 0.9+ 0.3-
991005 704 0.1- 0.3- 991114 691 0.4+ 1.1+ 991207 120 0.5- 0.0
991005 704 0.6+ 0.2- 991114 703 0.6- 0.0 991211 610 0.9+ 0.8-
991005 704 0.6+ 0.7- 991114 691 0.4+ 1.3+ 991211 610 0.7+ 0.8-
991005 704 0.2+ 0.4- 991114 691 0.5+ 1.0+ 991211 610 0.4+ 0.9-
991005 704 0.4+ 0.9- 991116 704 0.3- 0.3+ 991211 610 0.2+ 1.0-
991015 699 0.4- 0.4+ 991116 704 0.3- 0.5+ 991211 610 0.1- 1.1-
991015 699 0.2- 0.1- 991116 704 0.1+ 0.1- 991212 703 0.1- 0.1+
991015 699 0.0 0.3+ 991116 704 0.0 0.0 991212 703 0.3- 0.0
991022 704 0.0 0.1+ 991125 120 0.1+ 0.2- 991212 703 0.2- 0.7+
991022 704 0.2- 0.2- 991125 120 0.2+ 0.4+ 991212 703 0.2- 0.1-
991022 704 0.2+ 0.2- 991125 120 1.0+ 0.5- 991213 120 0.1- 0.2+
991022 704 0.0 0.3- 991126 120 0.1+ 0.3- 991213 120 0.3+ 0.1+
991022 704 0.2+ 0.1+ 991126 120 1.2+ 0.3- 991213 610 0.0 0.7+
991029 703 0.5- 0.3+ 991127 120 0.4+ 0.4- 991213 120 0.2+ 0.5+
991029 703 0.5- 0.4+ 991127 120 0.5+ 1.1- 991213 610 0.1- 0.6+
991029 703 0.1+ 0.1+ 991128 691 0.2+ 0.1- 991213 610 0.2- 0.4+
991029 703 0.3- 0.1+ 991128 691 0.2+ 0.1- 991213 610 0.2- 0.2+
991103 704 0.1- 0.5- 991128 691 0.3+ 0.1- 991213 610 0.3- 0.1-
991103 704 0.2+ 0.3- 991130 120 0.4+ 0.3- 991213 610 0.3- 0.3-
991103 704 0.3+ 0.2+ 991130 120 0.2- 0.6- 991216 402 0.0 0.3+
991103 699 0.6- 0.4+ 991204 703 0.8- 0.0 991216 402 0.4- 0.3-
991103 704 0.1+ 0.1+ 991204 703 0.5- 0.3+ 991216 402 0.3- 0.1+
991103 699 0.4- 0.8+ 991204 703 0.3- 0.6+ 991217 120 1.0- 0.3+
991103 704 0.0 0.2+ 991204 703 0.5- 0.1- 991217 120 0.6- 0.5-
991103 699 0.5- 0.3+ 991206 704 0.1+ 0.1+ 991217 120 0.0 0.5+
991111 703 0.5- 0.2- 991206 704 0.1+ 1.0+ 000103 587 0.0 0.5+
991111 703 0.4- 0.1+ 991206 704 0.3+ 0.2- 000103 587 0.2+ 0.4+
991111 703 0.5- 0.2+ 991206 704 0.7+ 0.4-
991111 703 0.5- 0.2+ 991206 704 0.5+ 0.5-
Ephemeris:
1999 WS1 a,e,i = 3.12, 0.54, 17 q = 1.4398
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 12 28 02 27.37 +11 13.2 1.864 2.531 122.3 19.2 18.0
2000 01 07 02 31.42 +10 54.2 2.044 2.591 113.0 20.5 18.3
2000 01 17 02 37.43 +10 51.9 2.232 2.650 104.2 21.1 18.6
2000 01 27 02 45.04 +11 02.5 2.425 2.709 95.9 21.2 18.8
2000 02 06 02 53.97 +11 22.3 2.621 2.767 88.0 20.9 19.0
2000 02 16 03 04.00 +11 48.5 2.817 2.825 80.4 20.2 19.2
2000 02 26 03 14.90 +12 18.4 3.010 2.881 73.0 19.2 19.4
2000 03 07 03 26.52 +12 50.1 3.199 2.937 65.9 18.0 19.5
Gareth V. Williams (C) Copyright 2000 MPC M.P.E.C. 2000-A23
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