MPEC 1998-W40 : 1998 WP7
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M.P.E.C. 1998-W40 Issued 1998 Nov. 27, 16:38 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 WP7
Observations:
J98W07P* C1998 11 23.20422 01 17 20.25 +06 30 44.5 19.2 R 699
J98W07P C1998 11 23.22970 01 17 23.89 +06 29 31.1 699
J98W07P C1998 11 23.26465 01 17 28.83 +06 27 50.1 699
J98W07P C1998 11 23.94965 01 19 10.27 +05 55 52.2 557
J98W07P C1998 11 23.95292 01 19 10.74 +05 55 42.2 557
J98W07P IC1998 11 24.82060 01 21 15.91 +05 17 48.3 557
J98W07P C1998 11 24.82259 01 21 16.17 +05 17 43.4 19.0 V 557
J98W07P C1998 11 25.49058 01 22 48.51 +04 50 52.8 19.8 V 426
J98W07P C1998 11 25.50257 01 22 50.07 +04 50 23.8 19.4 V 426
J98W07P C1998 11 25.51449 01 22 51.55 +04 49 54.8 19.6 V 426
J98W07P C1998 11 25.56146 01 22 57.63 +04 47 32.7 19.4 V 360
J98W07P C1998 11 25.56510 01 22 58.11 +04 47 24.8 360
J98W07P C1998 11 25.56875 01 22 58.56 +04 47 15.7 360
J98W07P C1998 11 26.44578 01 24 56.94 +04 13 34.0 19.4 V 402
J98W07P C1998 11 26.44716 01 24 57.13 +04 13 29.9 402
J98W07P C1998 11 26.44855 01 24 57.33 +04 13 27.3 402
J98W07P C1998 11 26.44994 01 24 57.52 +04 13 24.7 402
J98W07P C1998 11 27.46531 01 27 08.36 +03 37 43.1 20.1 V 426
J98W07P C1998 11 27.47717 01 27 09.79 +03 37 18.7 20.2 V 426
J98W07P C1998 11 27.49020 01 27 11.26 +03 36 53.0 20.2 V 426
Observer details:
360 Kuma Kogen. Observer A. Nakamura. 0.60-m f/6.0 Ritchey-Chretien + CCD.
402 Dynic Astronomical Observatory. Observer A. Sugie. 0.60-m f/3.7 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.
699 Lowell Observatory-LONEOS. Observer W. D. Ferris. Measurers B. W. Koehn.
0.59-m LONEOS Schmidt + CCD.
Orbital elements:
1998 WP7
Epoch 1998 Nov. 23.0 TT = JDT 2451140.5 Williams
M 66.44180 (2000.0) P Q
n 0.73808379 Peri. 64.73483 +0.38434803 +0.87763901
a 1.2126411 Node 230.97621 -0.92246400 +0.35281162
e 0.4271987 Incl. 21.63270 -0.03656179 +0.32445913
P 1.34 H 20.2 G 0.15
From 20 observations 1998 Nov. 23-27.
Ephemeris:
1998 WP7 a,e,i = 1.21, 0.43, 22 q = 0.6946
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 11 23 01 16.82 +06 40.9 0.287 1.221 139.7 31.5 19.3
1998 11 28 01 28.25 +03 19.6 0.341 1.254 135.8 33.3 19.7
1998 12 03 01 37.86 +01 04.6 0.397 1.285 131.9 34.8 20.2
1998 12 08 01 46.39 -00 25.1 0.456 1.316 128.0 36.1 20.6
1998 12 13 01 54.27 -01 22.5 0.517 1.345 124.3 37.2 20.9
1998 12 18 02 01.79 -01 56.5 0.579 1.374 120.8 38.0 21.2
1998 12 23 02 09.13 -02 12.9 0.643 1.401 117.4 38.6 21.5
1998 12 28 02 16.42 -02 16.0 0.709 1.428 114.1 39.0 21.8
1999 01 02 02 23.71 -02 09.2 0.775 1.453 110.9 39.2 22.0
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-W40
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