MPEC 1999-J20 : 1999 JB
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M.P.E.C. 1999-J20 Issued 1999 May 7, 16:15 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 ISSN 1523-6714
1999 JB
Observations:
J99J00B* C1999 05 05.30266 14 46 21.99 +41 02 45.0 18.4 R 699
J99J00B C1999 05 05.31538 14 46 20.17 +41 03 17.3 699
J99J00B C1999 05 05.32811 14 46 18.40 +41 03 49.7 699
J99J00B C1999 05 05.90881 14 44 58.31 +41 28 26.8 557
J99J00B C1999 05 05.91078 14 44 58.03 +41 28 31.8 557
J99J00B C1999 05 05.91275 14 44 57.79 +41 28 36.7 18.3 V 557
J99J00B C1999 05 06.24303 14 44 11.61 +41 42 32.6 658
J99J00B C1999 05 06.24772 14 44 10.97 +41 42 44.6 658
J99J00B C1999 05 06.24983 14 44 10.72 +41 42 49.8 658
J99J00B C1999 05 06.32586 14 43 59.13 +41 46 06.2 711
J99J00B C1999 05 06.33048 14 43 58.40 +41 46 17.8 711
J99J00B C1999 05 06.33513 14 43 57.71 +41 46 29.4 711
J99J00B C1999 05 07.29219 14 41 40.48 +42 26 22.6 719
J99J00B C1999 05 07.29515 14 41 40.09 +42 26 30.5 719
J99J00B C1999 05 07.31681 14 41 36.82 +42 27 22.8 711
J99J00B C1999 05 07.32382 14 41 35.66 +42 27 40.6 711
J99J00B C1999 05 07.32613 14 41 35.67 +42 27 46.4 719
J99J00B C1999 05 07.32895 14 41 34.89 +42 27 53.1 711
J99J00B C1999 05 07.32960 14 41 35.00 +42 27 55.0 719
J99J00B C1999 05 07.34189 14 41 33.30 +42 28 21.7 658
J99J00B C1999 05 07.34319 14 41 33.09 +42 28 23.7 658
J99J00B C1999 05 07.34649 14 41 32.66 +42 28 33.1 658
Observer details:
557 Ondrejov. Observer L. Sarounova. 0.65-m f/3.6 reflector + CCD.
658 Dominion Astrophysical Observatory. Observer D. D. Balam. 1.82-m
reflector + CCD.
699 Lowell Observatory-LONEOS. Observer B. W. Koehn. 0.59-m LONEOS Schmidt
+ CCD.
711 McDonald Observatory. Observer J. G. Ries. 0.76-m reflector + CCD.
719 Etscorn Observatory. Observers D. A. Klinglesmith III, R. Huber. 0.355-m
Schmidt-Cassegrain + CCD.
Orbital elements:
1999 JB
Epoch 1999 May 2.0 TT = JDT 2451300.5 Williams
M 301.82526 (2000.0) P Q
n 0.57579627 Peri. 178.00377 +0.96578455 +0.24152323
a 1.4309468 Node 166.80821 -0.24331341 +0.96991688
e 0.5732170 Incl. 24.45687 -0.08977075 -0.03045954
P 1.71 H 17.2 G 0.15
From 22 observations 1999 May 5-7.
Ephemeris:
1999 JB a,e,i = 1.43, 0.57, 24 q = 0.6107
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 05 02 14 53.52 +38 38.4 0.601 1.445 126.0 34.3 18.3
1999 05 07 14 42.39 +42 14.2 0.586 1.404 121.1 38.0 18.3
1999 05 12 14 29.50 +45 32.0 0.574 1.362 115.7 41.9 18.3
1999 05 17 14 15.05 +48 27.5 0.566 1.318 110.1 46.1 18.3
1999 05 22 13 59.37 +50 58.7 0.559 1.273 104.5 50.3 18.3
1999 05 27 13 42.78 +53 05.7 0.553 1.227 98.9 54.7 18.4
1999 06 01 13 25.56 +54 50.6 0.547 1.180 93.3 59.1 18.4
1999 06 06 13 07.82 +56 16.3 0.541 1.132 87.9 63.6 18.4
1999 06 11 12 49.54 +57 26.0 0.532 1.083 82.5 68.4 18.4
1999 06 16 12 30.37 +58 23.1 0.522 1.033 77.1 73.4 18.4
1999 06 21 12 09.64 +59 09.8 0.510 0.983 71.6 78.9 18.5
1999 06 26 11 46.18 +59 46.2 0.495 0.933 66.1 84.9 18.5
1999 07 01 11 18.52 +60 07.1 0.477 0.883 60.2 91.8 18.6
1999 07 06 10 45.20 +59 59.7 0.459 0.834 53.9 99.6 18.7
1999 07 11 10 05.78 +59 00.6 0.442 0.786 47.1 108.5 19.0
1999 07 16 09 22.27 +56 37.6 0.427 0.741 39.9 118.4 19.4
1999 07 21 08 39.66 +52 22.9 0.420 0.700 32.7 128.4 20.1
1999 08 20 07 21.77 +14 04.8 0.667 0.629 37.3 102.7 19.1
1999 08 30 07 40.35 +07 21.3 0.812 0.685 42.5 84.4 18.9
1999 09 09 08 03.40 +02 48.5 0.946 0.767 46.1 71.2 19.0
1999 09 19 08 26.76 -00 35.0 1.057 0.862 49.4 62.2 19.2
1999 09 29 08 48.71 -03 20.5 1.145 0.962 52.7 56.0 19.4
1999 10 09 09 08.66 -05 43.8 1.209 1.062 56.6 51.7 19.7
1999 10 19 09 26.33 -07 52.1 1.250 1.160 61.0 48.7 19.8
1999 10 29 09 41.60 -09 48.6 1.270 1.254 66.0 46.4 20.0
1999 11 08 09 54.34 -11 34.6 1.271 1.343 71.7 44.4 20.1
1999 11 18 10 04.26 -13 09.1 1.254 1.428 78.1 42.6 20.1
1999 11 28 10 11.05 -14 29.8 1.224 1.509 85.4 40.7 20.1
1999 12 08 10 14.25 -15 32.7 1.182 1.584 93.5 38.4 20.1
1999 12 18 10 13.31 -16 11.2 1.133 1.655 102.6 35.5 20.0
1999 12 28 10 07.79 -16 16.6 1.083 1.721 112.7 31.8 19.9
2000 01 07 09 57.45 -15 38.3 1.037 1.783 123.9 27.2 19.8
2000 01 17 09 42.69 -14 05.7 1.003 1.841 135.8 21.9 19.6
2000 01 27 09 24.86 -11 35.3 0.989 1.894 147.3 16.3 19.4
2000 02 06 09 06.11 -08 15.6 1.002 1.944 155.7 12.0 19.4
2000 02 16 08 48.91 -04 27.8 1.045 1.989 156.2 11.5 19.5
2000 02 26 08 35.18 -00 38.8 1.117 2.031 148.9 14.6 19.8
2000 03 07 08 25.84 +02 50.7 1.216 2.068 138.7 18.5 20.2
2000 03 17 08 21.03 +05 49.4 1.336 2.102 128.2 21.8 20.5
2000 03 27 08 20.31 +08 14.4 1.471 2.133 118.2 24.4 20.8
2000 04 06 08 23.04 +10 07.8 1.617 2.160 108.9 26.0 21.1
2000 04 16 08 28.61 +11 33.0 1.769 2.183 100.2 26.9 21.3
2000 04 26 08 36.44 +12 33.8 1.922 2.203 92.2 27.2 21.6
2000 05 06 08 46.05 +13 13.9 2.074 2.219 84.6 26.9 21.7
2000 05 16 08 57.08 +13 36.1 2.223 2.232 77.4 26.2 21.9
2000 05 26 09 09.20 +13 42.8 2.365 2.242 70.6 25.2 22.0
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-J20
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