MPEC 1998-F23: 1998 FM9
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M.P.E.C. 1998-F23 Issued 1998 Mar. 26, 16:06 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 FM9
Observations:
J98F09M* C1998 03 24.14990 11 18 53.20 +17 42 21.6 18.8 704
J98F09M C1998 03 24.17024 11 18 54.69 +17 42 58.0 19.2 704
J98F09M C1998 03 24.19095 11 18 56.10 +17 43 36.5 18.7 704
J98F09M C1998 03 24.21119 11 18 57.42 +17 44 13.8 19.2 704
J98F09M C1998 03 24.91897 11 19 54.00 +18 05 21.3 18.3 V 046
J98F09M C1998 03 24.92073 11 19 54.13 +18 05 24.3 046
J98F09M C1998 03 24.92267 11 19 54.27 +18 05 27.7 046
J98F09M C1998 03 24.93787 11 19 55.33 +18 05 54.1 18.6 V 557
J98F09M C1998 03 24.94315 11 19 55.74 +18 06 03.9 557
J98F09M C1998 03 25.44211 11 20 36.21 +18 21 02.9 19.2 V 566
J98F09M C1998 03 25.45225 11 20 36.95 +18 21 21.0 19.5 V 566
J98F09M C1998 03 25.46240 11 20 37.65 +18 21 38.6 19.3 V 566
J98F09M C1998 03 25.50414 11 20 42.67 +18 23 14.8 18.2 R 426
J98F09M C1998 03 25.50883 11 20 42.98 +18 23 23.7 18.2 R 426
J98F09M C1998 03 25.51413 11 20 43.40 +18 23 33.2 18.8 R 426
J98F09M C1998 03 25.53036 11 20 44.64 +18 23 31.4 18.3 V 402
J98F09M C1998 03 25.53244 11 20 44.75 +18 23 35.1 402
J98F09M C1998 03 25.53452 11 20 44.89 +18 23 39.9 402
J98F09M C1998 03 25.87483 11 21 13.05 +18 33 30.1 587
J98F09M C1998 03 25.87824 11 21 13.39 +18 33 38.2 18.5 V 104
J98F09M C1998 03 25.87830 11 21 13.38 +18 33 37.5 587
J98F09M C1998 03 25.88125 11 21 13.62 +18 33 43.7 104
J98F09M C1998 03 25.88484 11 21 13.86 +18 33 48.6 104
J98F09M C1998 03 25.89630 11 21 14.60 +18 34 09.4 17.4 R 106
J98F09M C1998 03 25.91199 11 21 15.77 +18 34 35.2 18.4 V 046
J98F09M C1998 03 25.91241 11 21 15.74 +18 34 38.0 17.5 R 106
J98F09M C1998 03 25.91346 11 21 15.87 +18 34 37.9 046
J98F09M C1998 03 25.91459 11 21 15.96 +18 34 39.9 046
J98F09M C1998 03 25.94774 11 21 18.44 +18 35 38.8 17.7 R 106
J98F09M C1998 03 25.95586 11 21 19.04 +18 35 53.9 17.5 R 106
J98F09M C1998 03 26.48266 11 22 04.16 +18 51 39.9 18.6 R 422
J98F09M dC1998 03 26.48595 11 22 04.43 +18 51 45.2 18.6 R 422
J98F09M C1998 03 26.48924 11 22 04.66 +18 51 51.6 18.5 R 422
Observer details:
046 Klet. Observers M. Tichy, Z. Moravec. Measurer M. Tichy. 0.57-m f/5.2
reflector + CCD.
104 San Marcello Pistoiese. Observers L. Tesi, A. Boattini. Measurers
A. Boattini, G. Forti, L. Tesi. 0.40-m f/5 reflector + CCD.
106 Crni Vrh. Observers H. Mikuz, J. Skvarc. 0.36-m f/6.7 Schmidt-Cassegrain
+ CCD.
402 Dynic Astronomical Observatory. Observer A. Sugie. 0.60-m f/3.7 reflecto
+ CCD.
422 Loomberah. Observer G. J. Garradd. 0.25-m f/4.1 reflector + CCD.
426 Woomera. Observer F. B. Zoltowski. 0.30-m f/3.3 Schmidt-Cassegrain + CCD
557 Ondrejov. Observers P. Pravec, L. Sarounova. 0.65-m f/3.6 reflector
+ CCD.
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. Observer F. Manca. 0.5-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 FM9
Epoch 1998 Mar. 8.0 TT = JDT 2450880.5 Williams
M 350.30402 (2000.0) P Q
n 0.29199628 Peri. 30.03953 -0.97190588 +0.22927687
a 2.2501830 Node 162.96679 -0.23535160 -0.94385950
e 0.4346393 Incl. 10.46545 -0.00292945 -0.23782634
P 3.38 H 19.5 G 0.15
From 33 observations 1998 Mar. 24-26.
Ephemeris:
1998 FM9 a,e,i = 2.25, 0.43, 10 q = 1.2722
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 03 18 11 11.34 +14 26.8 0.308 1.293 163.6 12.5 18.2
1998 03 28 11 24.24 +19 33.9 0.307 1.279 152.9 20.8 18.5
1998 04 07 11 40.62 +23 23.2 0.319 1.273 143.9 27.6 18.8
1998 04 17 11 59.97 +25 29.5 0.341 1.274 136.7 32.7 19.1
1998 04 27 12 21.08 +25 52.7 0.372 1.283 131.4 36.0 19.4
1998 05 07 12 42.95 +24 46.8 0.411 1.300 127.5 38.0 19.7
1998 05 17 13 04.75 +22 32.9 0.456 1.324 124.5 39.0 20.0
1998 05 27 13 26.01 +19 31.5 0.510 1.354 122.0 39.4 20.3
1998 06 06 13 46.73 +16 00.6 0.572 1.390 119.8 39.3 20.6
1998 06 16 14 06.93 +12 16.0 0.642 1.431 117.5 39.0 20.9
1998 06 26 14 26.73 +08 29.3 0.723 1.476 115.0 38.6 21.2
1998 07 06 14 46.35 +04 48.9 0.813 1.523 112.3 38.1 21.5
1998 07 16 15 05.87 +01 20.9 0.912 1.574 109.2 37.6 21.8
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-F23
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