MPEC 2004-W02 : 1985 WA
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M.P.E.C. 2004-W02 Issued 2004 Nov. 16, 12:12 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.
Supported in part by the Brinson Foundation
Prepared using the Tamkin Foundation Computer Network
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URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1985 WA
Additional Observations:
J85W00A 1C2004 11 15.52877 20 52 07.43 -25 57 01.5 20.3 R EW002413
J85W00A 1C2004 11 15.53988 20 52 09.48 -25 56 46.3 20.5 R EW002413
J85W00A 1C2004 11 16.41108 20 54 51.343-25 37 25.99 19.9 R EW002413
J85W00A 1C2004 11 16.42240 20 54 53.407-25 37 10.73 20.1 R EW002413
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 (or two decimals in degrees), reference and Delta-T
041115 413 0.86- 0.30- 041116 413 0.87- 0.31- MPC 21970 +1.9 day
Orbital elements:
1985 WA
Epoch 2005 Jan. 30.0 TT = JDT 2453400.5 MPC
M 8.87435 (2000.0) P Q
n 0.20654857 Peri. 351.12743 +0.81973512 -0.56057561
a 2.8343572 Node 43.65875 +0.53536544 +0.67710816
e 0.6060609 Incl. 9.79341 +0.20351455 +0.47673843
P 4.77 H 18.3 G 0.15 U 1
Residuals in seconds of arc
851014 413 1.0+ 0.1+ 851205 691 0.2+ 0.6- 851231 675 0.5+ 0.2+
851014 413 0.3- 1.0- 851205 691 1.1+ 1.2- 860102 675 0.7+ 0.9+
851116 675 0.5- 0.6+ 851205 691 0.0 0.7- 860102 675 0.5+ 0.7+
851116 675 0.4- 1.2+ 851207 691 0.9- 1.7- 860118 675 0.2+ 0.4-
851118 675 0.1+ 0.3- 851207 691 1.0- 1.6- 860118 675 0.7+ 0.9-
851118 675 0.3- 0.4+ 851213 801 0.6+ 0.1+ 860119 675 0.2+ 0.4-
851118 675 0.2+ 1.6- 851214 691 1.6- 1.3+ 860119 675 0.3+ 0.4-
851119 675 0.6- 1.7+ 851214 691 1.5- 1.2+ 041115 413 0.0 0.0
851119 675 0.1- 0.8+ 851214 691 1.3- 1.2+ 041115 413 0.0 0.3+
851119 675 0.0 0.7- 851218 688 0.0 0.3- 041116 413 0.1+ 0.1+
851119 675 1.4+ 0.7+ 851218 688 0.2+ 0.1+ 041116 413 0.1- 0.1-
851205 688 0.7+ 0.0 851218 688 0.8+ 0.0
851205 688 0.6- 0.8- 851231 675 0.7+ 0.0
Ephemeris:
1985 WA a,e,i = 2.83, 0.61, 10 q = 1.1166
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 11 11 20 38.41 -27 32.8 0.970 1.209 76.2 52.7 20.6
2004 11 21 21 09.32 -23 50.0 0.955 1.167 73.8 54.4 20.5
2004 12 01 21 42.19 -19 24.1 0.939 1.137 72.4 55.7 20.5
2004 12 11 22 16.66 -14 14.9 0.926 1.120 71.7 56.6 20.4
2004 12 21 22 52.48 -08 27.4 0.919 1.117 71.8 56.8 20.4
2004 12 31 23 29.48 -02 13.2 0.923 1.129 72.5 56.2 20.4
2005 01 10 00 07.58 +04 10.5 0.940 1.154 73.6 54.9 20.5
2005 01 20 00 46.69 +10 23.4 0.975 1.191 74.9 52.9 20.6
2005 01 30 01 26.59 +16 05.1 1.027 1.239 76.0 50.5 20.7
2005 02 09 02 06.94 +21 00.4 1.098 1.295 76.6 47.8 20.9
2005 02 19 02 47.28 +25 00.7 1.186 1.358 76.7 45.1 21.1
2005 03 01 03 27.02 +28 04.0 1.290 1.427 76.2 42.4 21.3
2005 03 11 04 05.60 +30 13.5 1.409 1.499 75.0 39.8 21.5
2005 03 21 04 42.60 +31 35.7 1.540 1.574 73.2 37.3 21.7
2005 03 31 05 17.67 +32 17.7 1.680 1.650 70.9 34.9 22.0
Timothy B. Spahr (C) Copyright 2004 MPC M.P.E.C. 2004-W02
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