MPEC 1998-W20 : 1998 WA2
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M.P.E.C. 1998-W20 Issued 1998 Nov. 20, 16:41 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
1998 WA2
Observations:
J98W02A* C1998 11 18.25892 03 43 29.77 +17 14 59.6 17.8 704
J98W02A C1998 11 18.30356 03 43 29.43 +17 11 42.2 18.3 704
J98W02A C1998 11 18.34803 03 43 29.10 +17 08 24.4 18.7 704
J98W02A C1998 11 18.39305 03 43 28.80 +17 05 07.1 17.9 704
J98W02A C1998 11 18.43752 03 43 28.60 +17 01 48.6 18.9 704
J98W02A C1998 11 18.96920 03 43 31.77 +16 23 17.7 17.7 V 046
J98W02A C1998 11 18.97022 03 43 31.77 +16 23 13.5 046
J98W02A C1998 11 18.97130 03 43 31.73 +16 23 08.5 046
J98W02A C1998 11 18.97270 03 43 31.74 +16 23 02.8 17.5 V 046
J98W02A C1998 11 19.17684 03 43 33.64 +16 08 38.0 17.9 704
J98W02A C1998 11 19.19874 03 43 33.51 +16 07 03.8 18.5 704
J98W02A C1998 11 19.22063 03 43 33.40 +16 05 32.8 18.9 704
J98W02A C1998 11 19.24257 03 43 33.32 +16 04 01.1 18.6 704
J98W02A C1998 11 19.26452 03 43 33.18 +16 02 28.1 18.4 704
J98W02A C1998 11 19.52336 03 43 34.61 +15 44 47.2 18.1 R 426
J98W02A C1998 11 19.52676 03 43 34.55 +15 44 33.2 17.6 R 426
J98W02A C1998 11 19.53088 03 43 34.49 +15 44 15.9 17.9 R 426
J98W02A C1998 11 19.80287 03 43 35.51 +15 24 50.8 557
J98W02A C1998 11 19.80414 03 43 35.53 +15 24 46.1 557
J98W02A SC1998 11 19.80543 03 43 35.51 +15 24 40.2 557
J98W02A C1998 11 19.92139 03 43 35.21 +15 16 45.7 106
J98W02A C1998 11 19.93981 03 43 35.16 +15 15 31.7 17.5 R 587
J98W02A C1998 11 19.94340 03 43 35.15 +15 15 16.8 587
J98W02A C1998 11 19.94741 03 43 35.03 +15 14 59.7 106
J98W02A C1998 11 19.96550 03 43 34.93 +15 13 46.2 106
J98W02A C1998 11 19.97234 03 43 34.84 +15 13 17.9 106
J98W02A C1998 11 20.08760 03 43 34.40 +15 05 26.3 17.8 R 118
J98W02A C1998 11 20.08945 03 43 34.41 +15 05 18.7 118
J98W02A C1998 11 20.10461 03 43 34.37 +15 04 16.8 118
Observer details:
046 Klet. Observers M. Tichy, Z. Moravec. Measurer M. Tichy. 0.57-m f/5.2
reflector + CCD.
106 Crni Vrh. Observers H. Mikuz, B. Dintinjana, S. Maticic. 0.36-m f/6.7
Schmidt-Cassegrain + CCD.
118 Modra. Observers L. Kornos, P. Koleny. 0.6-m f/5.5 reflector + CCD.
426 Woomera. Observer F. B. Zoltowski. 0.30-m f/3.3 Schmidt-Cassegrain + CCD.
557 Ondrejov. Observer P. Pravec. 0.65-m f/3.6 reflector + CCD.
587 Sormano. Observers P. Sicoli, A. Testa. 0.5-m reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko. Measurers J. Stuart, H. Viggh, R. Sayer. 1.0-m f/2.15
reflector + CCD.
Orbital elements:
1998 WA2
Epoch 1998 Nov. 3.0 TT = JDT 2451120.5 Williams
M 9.45621 (2000.0) P Q
n 0.22562615 Peri. 125.46325 +0.95098970 +0.03117401
a 2.6722459 Node 234.75060 -0.08685337 +0.98178281
e 0.5963837 Incl. 22.13063 +0.29677447 +0.18743185
P 4.37 H 19.5 G 0.15
From 29 observations 1998 Nov. 18-20.
Ephemeris:
1998 WA2 a,e,i = 2.67, 0.60, 22 q = 1.0786
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 11 13 03 42.95 +24 30.0 0.272 1.258 170.2 7.7 17.7
1998 11 18 03 43.47 +17 34.4 0.302 1.290 177.0 2.3 17.7
1998 11 23 03 43.73 +12 01.8 0.338 1.323 171.5 6.4 18.2
1998 11 28 03 44.05 +07 44.1 0.381 1.357 164.6 11.1 18.8
1998 12 03 03 44.63 +04 29.4 0.428 1.393 158.5 15.1 19.2
1998 12 08 03 45.57 +02 05.6 0.480 1.429 153.0 18.3 19.6
1998 12 13 03 46.93 +00 22.2 0.535 1.466 148.0 20.9 20.0
1998 12 18 03 48.76 -00 49.3 0.595 1.504 143.4 23.0 20.4
1998 12 23 03 51.10 -01 35.7 0.657 1.542 139.1 24.7 20.7
1998 12 28 03 53.93 -02 02.5 0.723 1.580 135.1 26.1 21.0
1999 01 02 03 57.24 -02 14.2 0.792 1.619 131.3 27.2 21.3
1999 01 07 04 00.99 -02 14.2 0.863 1.658 127.6 28.0 21.5
1999 01 12 04 05.16 -02 05.2 0.937 1.697 124.1 28.7 21.8
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-W20
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