MPEC 1998-M13: 1998 MS2
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M.P.E.C. 1998-M13 Issued 1998 June 22, 19:25 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 MS2
Observations:
J98M02S* C1998 06 20.26455 17 56 42.19 -22 28 51.2 15.3 R 703
J98M02S C1998 06 20.30550 17 56 45.27 -22 19 43.7 703
J98M02S C1998 06 20.37382 17 56 50.54 -22 04 36.3 703
J98M02S C1998 06 20.38694 17 56 51.45 -22 01 42.1 703
J98M02S C1998 06 20.38892 17 56 51.59 -22 01 15.8 703
J98M02S C1998 06 20.91997 17 57 51.51 -20 07 09.3 15.6 R 540
J98M02S C1998 06 20.92135 17 57 51.62 -20 06 51.5 540
J98M02S C1998 06 20.92274 17 57 51.66 -20 06 34.0 540
J98M02S IC1998 06 20.92552 17 57 51.95 -20 06 00.3 540
J98M02S C1998 06 21.24368 17 58 24.98 -18 59 37.3 703
J98M02S C1998 06 21.24448 17 58 23.55 -18 59 35.1 734
J98M02S C1998 06 21.24536 17 58 25.10 -18 59 16.7 703
J98M02S C1998 06 21.24638 17 58 23.67 -18 59 12.1 734
J98M02S C1998 06 21.24833 17 58 23.75 -18 58 46.7 734
J98M02S C1998 06 21.25159 17 58 25.50 -18 57 59.4 15.4 R 703
J98M02S C1998 06 21.27708 17 58 27.76 -18 52 48.1 15.8 V 670
J98M02S C1998 06 21.27917 17 58 27.91 -18 52 22.6 670
J98M02S C1998 06 21.28472 17 58 28.28 -18 51 15.2 670
J98M02S C1998 06 21.29514 17 58 28.96 -18 49 07.7 670
J98M02S C1998 06 21.31528 17 58 30.25 -18 45 01.1 15.9 V 670
J98M02S C1998 06 21.34122 17 58 32.27 -18 39 56.2 658
J98M02S C1998 06 21.34250 17 58 32.37 -18 39 41.1 658
J98M02S C1998 06 21.34389 17 58 32.45 -18 39 24.2 658
J98M02S C1998 06 21.85650 17 59 23.03 -16 57 23.0 15.1 V 046
J98M02S C1998 06 21.85715 17 59 23.08 -16 57 16.0 046
J98M02S C1998 06 21.85804 17 59 23.15 -16 57 05.3 046
J98M02S C1998 06 21.85865 17 59 23.19 -16 56 58.9 15.4 V 046
J98M02S C1998 06 21.91464 17 59 27.29 -16 46 06.0 16.3 V 104
J98M02S C1998 06 21.91591 17 59 27.36 -16 45 50.3 104
J98M02S C1998 06 21.91829 17 59 27.53 -16 45 23.7 104
J98M02S C1998 06 21.91944 17 59 27.62 -16 45 10.5 104
J98M02S C1998 06 21.93574 17 59 28.31 -16 42 05.6 046
J98M02S C1998 06 21.93647 17 59 28.37 -16 41 56.1 046
J98M02S C1998 06 21.93715 17 59 28.45 -16 41 48.4 046
J98M02S C1998 06 21.93794 17 59 28.43 -16 41 39.8 15.6 V 046
J98M02S IC1998 06 22.01073 17 59 38.17 -16 26 06.5 15.5 R 860
J98M02S C1998 06 22.01259 17 59 38.42 -16 25 42.9 15.3 R 860
J98M02S IC1998 06 22.01853 17 59 38.64 -16 24 34.9 15.6 R 860
J98M02S C1998 06 22.19259 17 59 48.26 -15 51 34.6 16.1 R 860
J98M02S C1998 06 22.52582 18 00 21.59 -14 49 23.2 15.5 R 426
J98M02S C1998 06 22.52870 18 00 21.79 -14 48 51.8 15.6 R 426
J98M02S C1998 06 22.53723 18 00 22.23 -14 47 19.0 15.4 R 426
J98M02S C1998 06 22.54070 18 00 22.47 -14 46 41.4 15.4 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.
540 Linz. Observers E. Meyer, H. Raab. 0.3-m f/5.2 Schmidt-Cassegrain + CCD.
658 Dominion Astrophysical Observatory. Observer D. D. Balam. 1.82-m
reflector + CCD.
670 Camarillo. Observer J. E. Rogers. 0.25-m Schmidt-Cassegrain + CCD.
703 Catalina Sky Survey. Observers S. M. Larson, T. B. Spahr, J. W. Brownlee,
J. L. Levine. Measurers C. W. Hergenrother, T. B. Spahr. 0.41-m f/3
Schmidt + CCD. Long. and parallax 249.2680, 0.84532, +0.53321 (see
MPC 31319).
734 Farpoint Observatory. Observer G. Hug. 0.45-m reflector + CCD.
860 Valinhos. Observer P. R. Holvorcem. 0.20-m f/3.3 reflector + CCD.
Orbital elements:
1998 MS2
Epoch 1998 June 16.0 TT = JDT 2450980.5 Williams
M 14.59804 (2000.0) P Q
n 0.43228664 Peri. 320.06306 -0.62511164 +0.70778327
a 1.7322936 Node 268.57044 -0.60533590 -0.70575356
e 0.4024669 Incl. 19.21775 -0.49275135 -0.03089914
P 2.28 H 20.0 G 0.15
From 43 observations 1998 June 20-22.
Ephemeris:
1998 MS2 a,e,i = 1.73, 0.40, 19 q = 1.0351
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 06 16 17 45.61 -40 40.3 0.083 1.095 162.6 16.1 15.7
1998 06 21 17 57.97 -19 49.1 0.097 1.113 176.4 3.3 15.5
1998 06 26 18 04.36 -05 47.3 0.121 1.133 162.1 16.0 16.6
1998 07 01 18 08.39 +02 53.0 0.152 1.154 152.9 23.6 17.3
1998 07 06 18 11.44 +08 13.6 0.186 1.177 146.9 28.2 17.9
1998 07 11 18 14.10 +11 32.7 0.222 1.201 142.6 31.0 18.5
1998 07 16 18 16.69 +13 34.7 0.260 1.226 139.4 32.7 18.9
1998 07 21 18 19.42 +14 45.3 0.300 1.252 136.8 33.7 19.3
1998 07 26 18 22.45 +15 20.2 0.341 1.279 134.6 34.4 19.6
1998 07 31 18 25.87 +15 30.0 0.384 1.306 132.7 34.9 19.9
1998 08 05 18 29.73 +15 21.9 0.427 1.334 130.8 35.1 20.2
1998 08 10 18 34.03 +15 01.1 0.473 1.362 129.1 35.3 20.5
1998 08 15 18 38.77 +14 31.2 0.519 1.390 127.3 35.4 20.7
1998 08 20 18 43.93 +13 54.9 0.568 1.419 125.5 35.5 21.0
1998 08 25 18 49.53 +13 14.4 0.617 1.448 123.7 35.5 21.2
1998 08 30 18 55.54 +12 31.6 0.669 1.476 121.8 35.5 21.4
1998 09 04 19 01.95 +11 48.0 0.722 1.505 119.9 35.5 21.6
1998 09 09 19 08.71 +11 04.8 0.777 1.534 118.0 35.5 21.8
1998 09 14 19 15.79 +10 22.7 0.833 1.562 116.0 35.4 22.0
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-M13
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