MPEC 1998-M18: 1998 KY61
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M.P.E.C. 1998-M18 Issued 1998 June 25, 19:32 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 KY61
Observations:
J98K61Y C1998 05 20.32944 20 28 36.04 -19 05 27.6 24.6 R 807
J98K61Y C1998 05 20.33653 20 28 36.02 -19 05 28.0 23.4 R 807
J98K61Y C1998 05 20.34340 20 28 36.02 -19 05 27.9 23.2 R 807
J98K61Y C1998 05 20.35028 20 28 36.01 -19 05 28.0 24.4 R 807
J98K61Y C1998 05 20.35801 20 28 36.00 -19 05 27.9 23.9 R 807
J98K61Y C1998 05 20.36495 20 28 35.99 -19 05 28.0 23.7 R 807
J98K61Y C1998 05 20.37190 20 28 35.98 -19 05 28.0 23.5 R 807
J98K61Y C1998 05 20.37882 20 28 35.97 -19 05 28.2 23.5 R 807
J98K61Y C1998 05 20.38569 20 28 35.97 -19 05 28.1 23.4 R 807
J98K61Y C1998 05 20.39264 20 28 35.95 -19 05 28.2 23.5 R 807
J98K61Y C1998 05 20.39951 20 28 35.94 -19 05 28.2 24.1 R 807
J98K61Y C1998 05 20.41333 20 28 35.93 -19 05 28.3 23.2 R 807
J98K61Y C1998 05 20.42020 20 28 35.92 -19 05 28.4 23.3 R 807
J98K61Y C1998 05 20.42707 20 28 35.91 -19 05 28.3 24.3 R 807
J98K61Y C1998 05 20.43394 20 28 35.90 -19 05 28.4 23.6 R 807
J98K61Y* C1998 05 29.33005 20 28 20.81 -19 06 25.4 23.3 R 807
J98K61Y C1998 05 29.33693 20 28 20.81 -19 06 25.3 24.0 R 807
J98K61Y C1998 05 29.34380 20 28 20.79 -19 06 25.5 23.5 R 807
J98K61Y C1998 05 29.35067 20 28 20.77 -19 06 25.5 24.0 R 807
J98K61Y C1998 05 29.35755 20 28 20.76 -19 06 25.6 24.1 R 807
J98K61Y C1998 05 29.36443 20 28 20.75 -19 06 25.6 24.0 R 807
J98K61Y C1998 05 29.37131 20 28 20.74 -19 06 25.7 23.6 R 807
J98K61Y C1998 05 29.37818 20 28 20.72 -19 06 25.9 23.8 R 807
J98K61Y C1998 05 29.38506 20 28 20.70 -19 06 25.9 23.8 R 807
J98K61Y C1998 05 29.39193 20 28 20.68 -19 06 25.9 24.2 R 807
J98K61Y C1998 05 29.39881 20 28 20.68 -19 06 26.0 23.6 R 807
J98K61Y C1998 05 29.40568 20 28 20.66 -19 06 25.9 23.9 R 807
J98K61Y C1998 05 30.31126 20 28 18.78 -19 06 32.9 23.6 R 807
J98K61Y C1998 05 30.31814 20 28 18.77 -19 06 32.9 23.4 R 807
J98K61Y C1998 05 30.32501 20 28 18.76 -19 06 33.0 23.6 R 807
J98K61Y C1998 05 30.33189 20 28 18.74 -19 06 33.0 23.7 R 807
J98K61Y C1998 05 30.33876 20 28 18.72 -19 06 33.1 23.7 R 807
J98K61Y C1998 05 30.34564 20 28 18.71 -19 06 33.1 23.8 R 807
J98K61Y C1998 05 30.35267 20 28 18.69 -19 06 33.2 23.4 R 807
J98K61Y C1998 05 30.35954 20 28 18.66 -19 06 33.2 23.7 R 807
J98K61Y C1998 05 30.36642 20 28 18.65 -19 06 33.3 23.6 R 807
J98K61Y C1998 05 30.37329 20 28 18.62 -19 06 33.4 23.5 R 807
J98K61Y C1998 05 30.38032 20 28 18.62 -19 06 33.6 23.7 R 807
J98K61Y C1998 05 30.38719 20 28 18.60 -19 06 33.5 23.7 R 807
Observer details:
807 Cerro Tololo. Observers R. L. Jones, M. Jarvis, G. Bernstein. Measurer
G. Bernstein. 4.0-m Blanco reflector + CCD.
Orbital elements:
1998 KY61
Assumed circular orbit
Epoch 1998 May 7.0 TT = JDT 2450940.5 Marsden
(2000.0) P Q
n 0.00317794 Arg.lat. 180.70231 +0.55344878 +0.83234111
a 45.8183053 Node 122.90208 -0.76398083 +0.52169978
e 0.0000000 Incl. 2.05080 -0.33170431 +0.18718338
P 310 H 7.5 G 0.15
From 39 observations 1998 May 20-30.
Ephemeris:
1998 KY61 a,e,i = 45.82, 0.00, 2
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 06 16 20 27.56 -19 09.3 45.034 45.818 140.2 0.8 24.2
1998 06 26 20 26.97 -19 11.4 44.937 45.818 149.8 0.6 24.2
1998 07 06 20 26.30 -19 13.8 44.864 45.818 159.5 0.4 24.2
1998 07 16 20 25.58 -19 16.4 44.819 45.818 169.2 0.2 24.1
1998 07 26 20 24.83 -19 19.0 44.803 45.818 179.0 0.0 24.1
1998 08 05 20 24.08 -19 21.7 44.815 45.818 171.3 0.2 24.1
1998 08 15 20 23.34 -19 24.2 44.857 45.818 161.5 0.4 24.2
1998 08 25 20 22.66 -19 26.6 44.926 45.818 151.7 0.6 24.2
1998 09 04 20 22.06 -19 28.7 45.020 45.818 141.9 0.8 24.2
1998 09 14 20 21.54 -19 30.5 45.138 45.818 132.1 0.9 24.2
1998 09 24 20 21.15 -19 31.9 45.276 45.818 122.2 1.1 24.2
1998 10 04 20 20.89 -19 32.8 45.429 45.818 112.3 1.2 24.3
1998 10 14 20 20.77 -19 33.3 45.593 45.818 102.4 1.2 24.3
1998 10 24 20 20.80 -19 33.2 45.764 45.818 92.5 1.2 24.3
1998 11 03 20 20.98 -19 32.7 45.936 45.818 82.6 1.2 24.3
1998 11 13 20 21.32 -19 31.6 46.104 45.818 72.6 1.2 24.3
1998 11 23 20 21.80 -19 30.1 46.264 45.818 62.6 1.1 24.3
Brian G. Marsden (C) Copyright 1998 MPC M.P.E.C. 1998-M18
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