MPEC 1998-Y08: 1998 FS144
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M.P.E.C. 1998-Y08 Issued 1998 Dec. 17, 23:48 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.
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html
1998 FS144
Revision to MPEC 1998-W09
Observations:
J98FE4S C1998 12 13.28766 11 08 40.99 -03 51 32.2 950
J98FE4S C1998 12 15.23928 11 08 41.47 -03 51 59.9 950
J98FE4S C1998 12 16.25293 11 08 41.57 -03 52 13.8 950
Observer details:
950 La Palma. Observers A. Fitzsimmons, E. Fletcher. 2.5-m Isaac Newton
Telescope.
First and last observations above in comparison with prediction:
Residuals in seconds of arc and reference
981213 950 24.3+ 10.0- 981216 950 24.1+ 10.1- MPC 33346
Orbital elements:
1998 FS144
Eccentricity assumed
Epoch 1999 Jan. 22.0 TT = JDT 2451200.5 Marsden
M 35.98469 (2000.0) P Q
n 0.00358072 Peri. 262.66081 -0.65030374 -0.74863765
a 42.3144557 Node 228.74339 +0.74697493 -0.59921815
e 0.0109756 Incl. 9.88237 +0.13832388 -0.28368871
P 275 H 6.7 G 0.15
Residuals in seconds of arc
980323 807 0.5+ 0.2- 980324 807 0.6- 0.3- 981213 950 0.2+ 0.1-
980323 807 0.1- 0.1- 980327 807 0.1+ 0.1+ 981215 950 0.0 0.2+
980323 807 0.1+ 0.6+ 980327 807 0.1+ 0.0 981216 950 0.2- 0.1-
Ephemeris:
1998 FS144 a,e,i = 42.31, 0.01, 10 q = 41.850
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 12 13 11 08.68 -03 51.5 41.910 41.940 91.1 1.3 23.1
1998 12 23 11 08.67 -03 53.5 41.739 41.940 101.1 1.3 23.1
1999 01 02 11 08.50 -03 54.5 41.575 41.940 111.2 1.3 23.1
1999 01 12 11 08.19 -03 54.4 41.421 41.940 121.3 1.1 23.1
1999 01 22 11 07.75 -03 53.3 41.283 41.940 131.4 1.0 23.0
1999 02 01 11 07.20 -03 51.3 41.166 41.941 141.5 0.8 23.0
1999 02 11 11 06.56 -03 48.3 41.072 41.941 151.3 0.6 23.0
1999 02 21 11 05.86 -03 44.5 41.006 41.941 160.8 0.4 23.0
1999 03 03 11 05.11 -03 40.1 40.968 41.941 168.9 0.3 22.9
1999 03 13 11 04.36 -03 35.2 40.961 41.941 170.6 0.2 22.9
1999 03 23 11 03.63 -03 30.0 40.983 41.941 163.9 0.4 23.0
1999 04 02 11 02.94 -03 24.8 41.035 41.942 154.9 0.6 23.0
1999 04 12 11 02.33 -03 19.6 41.113 41.942 145.4 0.8 23.0
1999 04 22 11 01.81 -03 14.6 41.216 41.942 135.7 1.0 23.0
1999 05 02 11 01.40 -03 10.1 41.341 41.942 126.1 1.1 23.1
1999 05 12 11 01.12 -03 06.2 41.482 41.942 116.5 1.2 23.1
1999 05 22 11 00.98 -03 03.0 41.637 41.943 106.9 1.3 23.1
1999 06 01 11 00.98 -03 00.6 41.800 41.943 97.4 1.4 23.1
1999 06 11 11 01.12 -02 59.0 41.967 41.943 88.0 1.4 23.1
1999 06 21 11 01.41 -02 58.5 42.133 41.943 78.6 1.4 23.1
1999 07 01 11 01.83 -02 58.8 42.293 41.943 69.3 1.3 23.1
1999 07 11 11 02.38 -03 00.1 42.443 41.944 60.0 1.2 23.1
Brian G. Marsden (C) Copyright 1998 MPC M.P.E.C. 1998-Y08
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