MPEC 1998-F18 : 1998 FW4
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M.P.E.C. 1998-F18 Issued 1998 Mar. 24, 23:29 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 FW4
Observations:
J98F04W* C1998 03 20.22789 12 36 49.21 -03 50 23.7 19.3 704
J98F04W C1998 03 20.24800 12 36 45.61 -03 50 09.5 19.1 704
J98F04W C1998 03 20.26810 12 36 42.30 -03 49 55.3 19.2 704
J98F04W C1998 03 20.28830 12 36 38.55 -03 49 44.3 19.8 704
J98F04W C1998 03 22.34631 12 31 05.83 -03 28 09.6 19.0 704
J98F04W C1998 03 22.35602 12 31 04.36 -03 28 01.6 19.0 704
J98F04W C1998 03 22.37545 12 31 01.20 -03 27 50.2 19.3 704
J98F04W C1998 03 23.92565 12 27 08.55 -03 12 33.7 557
J98F04W C1998 03 23.94316 12 27 05.88 -03 12 23.5 19.0 V 557
J98F04W C1998 03 23.96128 12 27 03.17 -03 12 12.0 18.8 V 046
J98F04W C1998 03 23.96272 12 27 03.01 -03 12 11.5 046
J98F04W C1998 03 23.96413 12 27 02.73 -03 12 10.5 046
J98F04W C1998 03 23.96576 12 27 02.65 -03 12 09.1 046
J98F04W C1998 03 23.96703 12 27 02.23 -03 12 08.3 046
J98F04W C1998 03 24.50031 12 25 44.67 -03 07 01.2 673
J98F04W C1998 03 24.50456 12 25 44.03 -03 06 59.5 673
Observer details:
046 Klet. Observers M. Tichy, Z. Moravec. Measurer M. Tichy. 0.57-m f/5.2
reflector + CCD.
557 Ondrejov. Observer P. Pravec. 0.65-m f/3.6 reflector + CCD.
673 Table Mountain Observatory, Wrightwood. Observer M. L. Hicks. Measurer
D. L. Rabinowitz. 0.6-m reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko. Measurers J. Stuart, H. Viggh. 1.0-m f/2.15 reflector + CCD.
Orbital elements:
1998 FW4
Epoch 1998 Mar. 8.0 TT = JDT 2450880.5 Williams
M 13.05797 (2000.0) P Q
n 0.19199182 Peri. 74.14394 +0.21639465 -0.97629749
a 2.9758719 Node 3.36667 +0.86713232 +0.19027942
e 0.7809797 Incl. 3.97420 +0.44861442 +0.10313561
P 5.13 H 19.0 G 0.15
From 16 observations 1998 Mar. 20-24.
Ephemeris:
1998 FW4 a,e,i = 2.98, 0.78, 4 q = 0.6518
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 03 18 12 43.31 -04 15.2 0.450 1.435 165.6 9.9 18.7
1998 03 23 12 29.43 -03 21.4 0.501 1.495 174.1 3.9 18.7
1998 03 28 12 18.03 -02 35.9 0.557 1.555 177.9 1.3 18.9
1998 04 02 12 08.88 -01 59.0 0.619 1.613 170.7 5.7 19.5
1998 04 07 12 01.77 -01 30.4 0.686 1.671 164.0 9.5 19.9
1998 04 12 11 56.44 -01 09.4 0.758 1.728 157.7 12.7 20.3
1998 04 17 11 52.63 -00 55.2 0.835 1.784 151.8 15.4 20.7
1998 04 22 11 50.14 -00 47.3 0.917 1.840 146.3 17.6 21.1
1998 04 27 11 48.79 -00 44.7 1.002 1.894 141.1 19.5 21.4
1998 05 02 11 48.42 -00 47.0 1.091 1.948 136.2 21.0 21.7
1998 05 07 11 48.90 -00 53.6 1.184 2.001 131.5 22.2 21.9
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-F18
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- B01 (the abbreviated form)
