MPEC 1998-M12: 1998 MR2
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M.P.E.C. 1998-M12 Issued 1998 June 22, 19:15 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 MR2
Observations:
J98M02R* C1998 06 19.15678 16 03 38.69 +08 53 52.9 18.5 704
J98M02R C1998 06 19.19346 16 03 36.08 +08 53 26.3 19.2 704
J98M02R C1998 06 19.21205 16 03 34.54 +08 53 13.0 19.3 704
J98M02R C1998 06 19.23038 16 03 33.01 +08 53 02.0 19.5 704
J98M02R C1998 06 20.25028 16 02 22.93 +08 40 50.1 658
J98M02R C1998 06 20.25501 16 02 22.51 +08 40 47.1 658
J98M02R C1998 06 20.25749 16 02 22.30 +08 40 45.1 658
J98M02R C1998 06 20.87940 16 01 40.02 +08 33 08.7 18.3 V 046
J98M02R C1998 06 20.88126 16 01 39.90 +08 33 07.5 046
J98M02R C1998 06 20.88361 16 01 39.74 +08 33 05.8 046
J98M02R C1998 06 20.88544 16 01 39.55 +08 33 04.3 046
J98M02R C1998 06 21.28106 16 01 12.84 +08 28 10.1 658
J98M02R C1998 06 21.28391 16 01 12.66 +08 28 07.7 658
J98M02R C1998 06 21.28690 16 01 12.45 +08 28 06.2 658
J98M02R C1998 06 21.85625 16 00 34.47 +08 20 56.1 18.0 V 104
J98M02R C1998 06 21.86480 16 00 33.96 +08 20 48.8 104
J98M02R C1998 06 21.87247 16 00 33.47 +08 20 43.5 104
J98M02R C1998 06 21.87273 16 00 33.36 +08 20 42.0 18.2 V 046
J98M02R C1998 06 21.87450 16 00 33.25 +08 20 40.6 046
J98M02R C1998 06 21.87645 16 00 33.05 +08 20 39.6 046
J98M02R C1998 06 21.87828 16 00 33.02 +08 20 39.0 046
J98M02R C1998 06 21.88012 16 00 32.88 +08 20 37.5 18.4 V 046
J98M02R C1998 06 22.46829 15 59 54.17 +08 13 14.5 18.5 R 426
J98M02R C1998 06 22.47365 15 59 53.78 +08 13 09.5 18.7 R 426
J98M02R C1998 06 22.47958 15 59 53.30 +08 13 06.0 19.1 R 426
J98M02R C1998 06 22.48456 15 59 52.98 +08 13 01.2 18.7 R 426
Observer details:
046 Klet. Observers J. Ticha, M. Tichy. 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.
426 Woomera. Observer F. B. Zoltowski. 0.30-m f/3.3 Schmidt-Cassegrain + 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.
Orbital elements:
1998 MR2
Epoch 1998 June 16.0 TT = JDT 2450980.5 Williams
M 313.24216 (2000.0) P Q
n 0.23722203 Peri. 239.21890 +0.88361684 +0.17097673
a 2.5844375 Node 107.77671 -0.07672196 +0.97123088
e 0.4609422 Incl. 27.24082 -0.46188204 +0.16576350
P 4.15 H 15.5 G 0.15
From 26 observations 1998 June 19-22.
Ephemeris:
1998 MR2 a,e,i = 2.58, 0.46, 27 q = 1.3932
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 06 16 16 07.39 +09 29.0 1.333 2.213 140.6 17.0 18.7
1998 06 26 15 56.18 +07 25.4 1.328 2.159 133.6 20.0 18.8
1998 07 06 15 47.52 +04 49.8 1.343 2.103 125.6 23.2 18.9
1998 07 16 15 42.10 +01 51.1 1.372 2.048 117.3 26.2 18.9
1998 07 26 15 40.22 -01 22.1 1.412 1.992 109.2 28.8 19.0
1998 08 05 15 41.93 -04 42.8 1.460 1.937 101.5 30.9 19.1
1998 08 15 15 47.07 -08 05.6 1.512 1.882 94.3 32.5 19.1
1998 08 25 15 55.45 -11 26.8 1.566 1.827 87.5 33.6 19.2
1998 09 04 16 06.90 -14 43.6 1.620 1.774 81.3 34.2 19.2
1998 09 14 16 21.27 -17 53.8 1.671 1.722 75.6 34.4 19.2
1998 09 24 16 38.49 -20 55.1 1.719 1.672 70.2 34.4 19.2
1998 10 04 16 58.52 -23 45.0 1.763 1.624 65.4 34.0 19.2
1998 10 14 17 21.33 -26 20.7 1.802 1.579 60.9 33.5 19.2
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-M12
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