MPEC 1998-X36 : 1998 XM4
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Read MPEC 1998-X35
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M.P.E.C. 1998-X36 Issued 1998 Dec. 13, 19:09 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 XM4
Observations:
J98X04M* C1998 12 10.14036 00 42 21.16 +31 04 42.3 17.6 704
J98X04M C1998 12 10.15106 00 42 21.07 +31 04 17.0 18.1 704
J98X04M C1998 12 10.16159 00 42 21.11 +31 03 52.6 17.8 704
J98X04M C1998 12 10.91074 00 42 23.35 +30 34 53.2 18.3 R 118
J98X04M C1998 12 10.91603 00 42 23.32 +30 34 41.2 118
J98X04M C1998 12 10.96564 00 42 23.47 +30 32 46.3 17.6 V 046
J98X04M C1998 12 10.96675 00 42 23.48 +30 32 43.6 046
J98X04M C1998 12 10.96812 00 42 23.51 +30 32 40.7 046
J98X04M WC1998 12 10.99553 00 42 23.67 +30 31 36.7 557
J98X04M C1998 12 10.99787 00 42 23.60 +30 31 31.1 557
J98X04M C1998 12 11.08168 00 42 24.39 +30 28 21.4 734
J98X04M C1998 12 11.09444 00 42 24.55 +30 27 50.6 658
J98X04M C1998 12 11.09612 00 42 24.54 +30 27 46.9 658
J98X04M C1998 12 11.09632 00 42 24.35 +30 27 47.9 734
J98X04M C1998 12 11.09750 00 42 24.53 +30 27 43.9 658
J98X04M C1998 12 11.46817 00 42 26.32 +30 13 42.4 17.7 R 426
J98X04M C1998 12 11.47374 00 42 26.31 +30 13 28.7 17.8 R 426
J98X04M C1998 12 11.47719 00 42 26.31 +30 13 21.5 17.4 R 426
J98X04M C1998 12 11.94249 00 42 29.00 +29 55 29.2 557
J98X04M C1998 12 11.94376 00 42 29.04 +29 55 26.3 557
J98X04M C1998 12 11.94505 00 42 28.99 +29 55 23.4 557
J98X04M C1998 12 11.94633 00 42 29.06 +29 55 20.0 18.8 V 557
J98X04M C1998 12 12.71206 00 42 35.66 +29 26 29.0 18.0 V 104
J98X04M C1998 12 12.71377 00 42 35.61 +29 26 24.8 104
J98X04M C1998 12 12.71574 00 42 35.54 +29 26 19.8 104
J98X04M C1998 12 12.74069 00 42 35.76 +29 25 23.0 046
J98X04M C1998 12 12.74317 00 42 35.69 +29 25 17.6 17.8 V 046
J98X04M C1998 12 12.74458 00 42 35.72 +29 25 14.1 046
J98X04M C1998 12 12.74596 00 42 35.77 +29 25 11.6 046
J98X04M C1998 12 12.74733 00 42 35.73 +29 25 08.3 046
J98X04M C1998 12 12.86396 00 42 36.58 +29 20 44.5 118
J98X04M C1998 12 12.87044 00 42 36.59 +29 20 30.4 118
J98X04M C1998 12 12.87397 00 42 36.63 +29 20 22.3 118
J98X04M C1998 12 13.06118 00 42 38.72 +29 13 24.0 734
J98X04M C1998 12 13.06312 00 42 38.82 +29 13 20.8 18.4 704
J98X04M C1998 12 13.06997 00 42 38.91 +29 13 05.8 18.9 704
J98X04M C1998 12 13.07681 00 42 38.89 +29 12 49.1 18.6 704
J98X04M C1998 12 13.07797 00 42 38.77 +29 12 46.3 734
J98X04M C1998 12 13.08364 00 42 38.88 +29 12 35.4 18.6 704
J98X04M C1998 12 13.09083 00 42 39.21 +29 12 17.3 20.0 704
J98X04M C1998 12 13.09767 00 42 39.19 +29 12 03.7 19.1 704
J98X04M C1998 12 13.10452 00 42 39.17 +29 11 46.6 19.0 704
J98X04M C1998 12 13.11171 00 42 39.16 +29 11 32.1 19.3 704
J98X04M C1998 12 13.14126 00 42 39.31 +29 10 25.6 711
J98X04M C1998 12 13.14602 00 42 39.35 +29 10 14.7 711
J98X04M C1998 12 13.15096 00 42 39.39 +29 10 03.9 711
Observer details:
046 Klet. Observers J. Ticha, M. Tichy, Z. Moravec. Measurer M. Tichy.
0.57-m f/5.2 reflector + CCD.
104 San Marcello Pistoiese. Observers L. Tesi, A. Boattini, M. Tombelli.
Measurers A. Boattini, G. Forti, L. Tesi, M. Tombelli. 0.40-m f/5
reflector + CCD.
118 Modra. Observers A. Galad, J. Toth. 0.6-m f/5.5 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.
658 Dominion Astrophysical Observatory. Observer D. D. Balam. 1.82-m
reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko. Measurers J. Stuart, H. Viggh, R. Sayer. 1.0-m f/2.15
reflector + CCD.
711 McDonald Observatory. Observers E. S. Barker, J. G. Ries. 0.76-m
reflector + CCD.
734 Farpoint Observatory. Observers G. Hug, G. Bell. 0.30-m
Schmidt-Cassegrain + CCD.
Orbital elements:
1998 XM4
Epoch 1998 Nov. 23.0 TT = JDT 2451140.5 Williams
M 250.37156 (2000.0) P Q
n 0.48153409 Peri. 303.76979 -0.63690870 -0.24254637
a 1.6120730 Node 236.24424 +0.06817893 -0.96322206
e 0.4266135 Incl. 61.66373 -0.76791858 +0.11564825
P 2.05 H 15.1 G 0.15
From 46 observations 1998 Dec. 10-13.
Ephemeris:
1998 XM4 a,e,i = 1.61, 0.43, 62 q = 0.9243
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 12 13 00 42.63 +29 15.7 1.297 1.966 118.4 26.1 18.3
1998 12 18 00 43.95 +26 15.5 1.333 1.945 113.3 27.7 18.4
1998 12 23 00 46.21 +23 29.6 1.375 1.924 108.2 29.1 18.5
1998 12 28 00 49.28 +20 58.4 1.420 1.902 103.1 30.2 18.6
1999 01 02 00 53.06 +18 41.8 1.468 1.880 98.2 31.2 18.6
1999 01 07 00 57.45 +16 39.1 1.517 1.856 93.4 31.9 18.7
1999 01 12 01 02.38 +14 49.2 1.568 1.833 88.7 32.4 18.8
1999 01 22 01 13.65 +11 43.6 1.669 1.783 79.9 32.9 18.9
1999 02 01 01 26.48 +09 16.0 1.765 1.731 71.8 32.7 18.9
1999 02 11 01 40.62 +07 17.4 1.852 1.677 64.2 32.0 18.9
1999 02 21 01 55.91 +05 40.1 1.927 1.621 57.2 30.9 18.9
1999 03 03 02 12.28 +04 17.5 1.985 1.562 50.9 29.5 18.8
1999 03 13 02 29.71 +03 04.1 2.026 1.502 45.2 28.0 18.8
1999 03 23 02 48.25 +01 55.2 2.048 1.440 40.3 26.6 18.6
1999 04 02 03 07.99 +00 46.7 2.049 1.377 36.3 25.4 18.5
1999 04 12 03 29.11 -00 24.9 2.029 1.313 33.3 24.8 18.4
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-X36
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