MPEC 1997-X04: 1997 WU22
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M.P.E.C. 1997-X04 Issued 1997 Dec. 3, 17:53 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
1997 WU22
Observations:
J97W22U* C1997 11 30.53388 04 10 45.89 +28 35 30.5 18.9 566
J97W22U C1997 11 30.54418 04 10 44.66 +28 35 22.6 19.1 566
J97W22U C1997 11 30.55442 04 10 43.44 +28 35 14.1 18.5 566
J97W22U C1997 12 01.90729 04 08 06.55 +28 18 12.6 587
J97W22U C1997 12 01.91262 04 08 05.93 +28 18 08.5 587
J97W22U C1997 12 01.92101 04 08 04.94 +28 18 02.3 587
J97W22U C1997 12 02.26573 04 07 25.05 +28 13 37.7 658
J97W22U C1997 12 02.27120 04 07 24.41 +28 13 33.3 658
J97W22U C1997 12 02.27366 04 07 24.13 +28 13 31.5 658
J97W22U C1997 12 03.27575 04 05 28.72 +28 00 36.5 658
J97W22U C1997 12 03.29279 04 05 26.71 +28 00 23.2 658
J97W22U C1997 12 03.29661 04 05 26.27 +28 00 20.5 658
Observer details:
566 Haleakala-NEAT/GEODSS. Observers E. F. Helin, S. Pravdo, K. J. Lawrence,
D. L. Rabinowitz for the NEAT team. 1.0-m f/2.2 GEODSS telescope + CCD.
587 Sormano. Observers V. Giuliani, P. Ghezzi. 0.5-m reflector + CCD.
658 Dominion Astrophysical Observatory. Observer D. D. Balam. 1.82-m
reflector + CCD.
Orbital elements:
1997 WU22
Epoch 1997 Nov. 28.0 TT = JDT 2450780.5 Williams
M 205.79179 (2000.0) P Q
n 0.56280806 Peri. 327.65953 -0.60039311 +0.77324757
a 1.4528781 Node 264.62842 -0.68318935 -0.62854015
e 0.3324031 Incl. 11.82368 -0.41566865 -0.08381815
P 1.75 H 16.5 G 0.15
From 12 observations 1997 Nov. 30-Dec. 3.
Ephemeris:
1997 WU22 a,e,i = 1.45, 0.33, 12 q = 0.9699
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1997 11 28 04 15.73 +29 06.1 0.926 1.908 172.2 4.0 18.1
1997 12 08 03 56.70 +26 57.5 0.926 1.895 165.2 7.6 18.3
1997 12 18 03 40.66 +24 38.9 0.952 1.879 152.1 14.2 18.6
1997 12 28 03 29.36 +22 29.1 1.002 1.860 139.1 20.2 18.9
1998 01 07 03 23.44 +20 41.4 1.069 1.839 127.2 25.2 19.1
1998 01 17 03 22.62 +19 21.0 1.148 1.815 116.6 29.0 19.4
1998 01 27 03 26.26 +18 26.7 1.233 1.789 107.0 31.8 19.6
1998 02 06 03 33.69 +17 54.7 1.321 1.760 98.4 33.7 19.7
1998 02 16 03 44.29 +17 39.6 1.406 1.729 90.7 34.8 19.9
1998 02 26 03 57.54 +17 36.2 1.488 1.695 83.7 35.5 20.0
1998 03 08 04 13.09 +17 39.8 1.563 1.658 77.4 35.7 20.0
1998 03 18 04 30.63 +17 46.1 1.631 1.619 71.6 35.7 20.1
1998 03 28 04 49.95 +17 51.3 1.689 1.578 66.2 35.4 20.1
1998 04 07 05 10.90 +17 52.2 1.738 1.535 61.4 34.9 20.1
1998 04 17 05 33.34 +17 45.5 1.776 1.490 57.0 34.4 20.0
1998 04 27 05 57.18 +17 28.5 1.804 1.443 53.0 33.8 20.0
1998 05 07 06 22.36 +16 58.6 1.822 1.395 49.4 33.3 19.9
1998 05 17 06 48.80 +16 13.6 1.829 1.345 46.2 32.9 19.8
1998 05 27 07 16.48 +15 11.5 1.826 1.295 43.5 32.6 19.7
1998 06 06 07 45.37 +13 50.6 1.815 1.245 41.1 32.4 19.6
Gareth V. Williams (C) Copyright 1997 MPC M.P.E.C. 1997-X04
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