MPEC 1999-J50: 1999 JT6
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M.P.E.C. 1999-J50 Issued 1999 May 15, 17:41 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 JT6
Observations:
J99J06T C1999 05 12.23750 15 32 34.84 -09 14 25.4 18.2 R 683
J99J06T C1999 05 12.26126 15 32 32.18 -09 14 28.9 18.3 R 683
J99J06T C1999 05 12.28449 15 32 29.60 -09 14 33.0 18.2 R 683
J99J06T* C1999 05 12.29291 15 32 28.68 -09 14 34.9 17.8 704
J99J06T C1999 05 12.30585 15 32 27.29 -09 14 34.4 19.6 704
J99J06T C1999 05 12.31883 15 32 25.74 -09 14 37.9 18.6 704
J99J06T C1999 05 12.33181 15 32 24.26 -09 14 40.3 18.5 704
J99J06T C1999 05 12.34476 15 32 22.81 -09 14 41.8 18.6 704
J99J06T C1999 05 13.20716 15 30 50.76 -09 16 59.3 758
J99J06T C1999 05 13.21485 15 30 49.87 -09 17 01.5 758
J99J06T C1999 05 13.22177 15 30 49.38 -09 17 04.0 18.0 704
J99J06T C1999 05 13.22293 15 30 49.00 -09 17 03.1 758
J99J06T C1999 05 13.23689 15 30 47.73 -09 17 06.6 18.4 704
J99J06T C1999 05 13.24762 15 30 46.59 -09 17 08.5 18.4 R 683
J99J06T C1999 05 13.24942 15 30 46.31 -09 17 09.3 719
J99J06T C1999 05 13.25201 15 30 46.00 -09 17 08.0 18.3 704
J99J06T C1999 05 13.25840 15 30 45.29 -09 17 10.7 719
J99J06T C1999 05 13.26711 15 30 44.36 -09 17 11.4 18.6 704
J99J06T C1999 05 13.27074 15 30 44.06 -09 17 12.1 18.0 R 683
J99J06T C1999 05 13.28225 15 30 42.77 -09 17 13.8 18.1 704
J99J06T C1999 05 13.28429 15 30 42.34 -09 17 14.4 18.0 V 734
J99J06T C1999 05 13.28719 15 30 42.03 -09 17 14.6 17.8 V 734
J99J06T C1999 05 13.28975 15 30 41.94 -09 17 15.6 719
J99J06T C1999 05 13.29150 15 30 41.58 -09 17 16.0 18.1 V 734
J99J06T IC1999 05 13.29324 15 30 41.49 -09 17 15.0 719
J99J06T C1999 05 13.29384 15 30 41.49 -09 17 15.9 18.2 R 683
J99J06T C1999 05 13.29707 15 30 41.08 -09 17 16.6 18.1 704
J99J06T C1999 05 13.30419 15 30 40.33 -09 17 17.4 18.0 704
J99J06T C1999 05 13.31215 15 30 39.41 -09 17 18.2 18.2 704
J99J06T C1999 05 13.31917 15 30 38.70 -09 17 19.9 704
J99J06T C1999 05 13.32710 15 30 37.81 -09 17 22.3 18.1 704
J99J06T C1999 05 13.33421 15 30 37.00 -09 17 22.1 18.7 704
J99J06T C1999 05 13.34223 15 30 36.13 -09 17 22.6 18.3 704
J99J06T C1999 05 13.34924 15 30 35.45 -09 17 24.1 18.3 704
J99J06T C1999 05 13.35056 15 30 35.28 -09 17 25.0 17.0 R 684
J99J06T C1999 05 13.35348 15 30 34.97 -09 17 25.7 684
J99J06T C1999 05 13.35718 15 30 34.42 -09 17 26.0 18.6 704
J99J06T C1999 05 13.35822 15 30 34.46 -09 17 26.4 684
J99J06T C1999 05 13.36418 15 30 33.68 -09 17 28.0 18.9 704
J99J06T C1999 05 13.37191 15 30 32.81 -09 17 28.7 18.3 704
J99J06T C1999 05 13.38706 15 30 31.27 -09 17 30.7 704
J99J06T C1999 05 13.40216 15 30 29.44 -09 17 34.4 19.2 704
J99J06T C1999 05 13.41723 15 30 27.92 -09 17 34.3 18.4 704
J99J06T C1999 05 13.43231 15 30 26.27 -09 17 37.8 18.5 704
J99J06T C1999 05 13.49679 15 30 20.17 -09 17 38.4 18.5 R 428
J99J06T C1999 05 13.50174 15 30 19.72 -09 17 39.1 18.6 R 428
J99J06T C1999 05 13.90743 15 29 36.68 -09 18 58.5 16.8 R 046
J99J06T C1999 05 13.90983 15 29 36.43 -09 18 58.7 046
J99J06T C1999 05 14.22448 15 29 03.47 -09 19 50.7 17.7 704
J99J06T C1999 05 14.22655 15 29 03.20 -09 19 50.7 719
J99J06T C1999 05 14.22969 15 29 02.89 -09 19 51.1 719
J99J06T C1999 05 14.23963 15 29 01.70 -09 19 53.3 17.9 704
J99J06T C1999 05 14.25468 15 29 00.14 -09 19 55.1 704
J99J06T C1999 05 14.26980 15 28 58.50 -09 19 57.7 18.4 704
J99J06T C1999 05 14.29785 15 28 55.53 -09 20 02.6 17.4 R 684
J99J06T C1999 05 14.29865 15 28 54.70 -09 19 53.6 18.4 V 860
J99J06T C1999 05 14.30048 15 28 55.14 -09 20 02.0 17.9 704
J99J06T C1999 05 14.30052 15 28 55.25 -09 20 02.9 684
J99J06T C1999 05 14.30345 15 28 54.39 -09 19 54.2 18.2 V 860
J99J06T C1999 05 14.30778 15 28 54.03 -09 19 55.3 17.9 V 860
J99J06T C1999 05 14.31556 15 28 53.53 -09 20 05.8 17.7 704
J99J06T C1999 05 14.33065 15 28 51.87 -09 20 07.2 18.0 704
J99J06T C1999 05 14.34570 15 28 50.37 -09 20 09.8 18.6 704
J99J06T C1999 05 14.36077 15 28 48.65 -09 20 13.4 18.1 704
J99J06T C1999 05 14.37564 15 28 47.10 -09 20 15.1 17.8 704
J99J06T C1999 05 14.39762 15 28 44.76 -09 20 19.3 18.2 704
J99J06T C1999 05 14.41318 15 28 42.99 -09 20 20.0 18.6 704
J99J06T C1999 05 14.42854 15 28 41.47 -09 20 23.4 19.1 704
J99J06T C1999 05 14.44383 15 28 39.80 -09 20 27.5 18.3 704
J99J06T C1999 05 14.93455 15 27 49.25 -09 21 51.9 18.0 V 557
J99J06T C1999 05 15.69005 15 26 31.14 -09 23 50.0 17.1 R 426
J99J06T C1999 05 15.69407 15 26 30.71 -09 23 50.8 17.1 R 426
J99J06T C1999 05 15.69785 15 26 30.31 -09 23 51.4 17.1 R 426
Observer details:
046 Klet. Observers M. Tichy, Z. Moravec. Measurer M. Tichy. 0.57-m f/5.2
reflector + CCD.
426 Woomera. Observer F. B. Zoltowski. 0.30-m f/3.3 Schmidt-Cassegrain + CCD.
428 Reedy Creek. Observer J. Broughton. 0.25-m f/6.3 Schmidt-Cassegrain
+ CCD.
557 Ondrejov. Observers P. Pravec, L. Sarounova. 0.65-m f/3.6 reflector
+ CCD.
683 Goodricke-Pigott Observatory, Tucson. Observer R. A. Tucker. 0.36-m
Schmidt-Cassegrain + CCD.
684 Prescott. Observer P. G. Comba. 0.46-m f/4.5 reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, M. Elowitz. Measurers J. Stuart, H. Viggh, R. Sayer. 1.0-m
f/2.15 reflector + CCD.
719 Etscorn Observatory. Observer D. A. Klinglesmith III, R. Huber. 0.355-m
Schmidt-Cassegrain + CCD.
734 Farpoint Observatory. Observer G. Hug. 0.30-m Schmidt-Cassegrain + CCD.
758 BCC Observatory, Cocoa. Observer I. P. Griffin. 0.30-m f/5 Maksutov
+ CCD.
860 Valinhos. Observer P. R. Holvorcem. 0.20-m f/3.3 reflector + CCD.
Orbital elements:
1999 JT6 PHA 0.019
Epoch 1999 May 2.0 TT = JDT 2451300.5 Williams
M 39.43789 (2000.0) P Q
n 0.30358355 Peri. 39.09935 -0.45681702 -0.87379348
a 2.1925553 Node 78.66423 +0.76754013 -0.48192106
e 0.5947506 Incl. 9.79133 +0.44966695 -0.06509258
P 3.25 H 16.6 G 0.15
From 73 observations 1999 May 12-15.
Ephemeris:
1999 JT6 a,e,i = 2.19, 0.59, 10 q = 0.8885
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 05 12 15 33.01 -09 13.7 0.862 1.865 170.1 5.4 18.1
1999 05 17 15 24.32 -09 27.8 0.900 1.904 170.0 5.3 18.2
1999 05 22 15 16.44 -09 43.7 0.945 1.943 166.2 7.1 18.4
1999 05 27 15 09.53 -10 01.6 0.995 1.981 161.0 9.6 18.7
1999 06 01 15 03.67 -10 21.3 1.051 2.018 155.5 12.0 19.0
1999 06 06 14 58.88 -10 42.8 1.113 2.055 150.0 14.3 19.2
1999 06 11 14 55.15 -11 05.8 1.179 2.091 144.6 16.3 19.4
1999 06 16 14 52.45 -11 30.4 1.250 2.127 139.4 18.1 19.7
1999 06 21 14 50.72 -11 56.3 1.326 2.163 134.5 19.6 19.9
1999 06 26 14 49.89 -12 23.5 1.404 2.197 129.7 20.9 20.1
1999 07 01 14 49.89 -12 51.7 1.486 2.232 125.1 21.9 20.3
1999 07 06 14 50.63 -13 20.7 1.571 2.265 120.7 22.7 20.4
1999 07 11 14 52.05 -13 50.4 1.658 2.298 116.4 23.3 20.6
1999 07 16 14 54.08 -14 20.7 1.748 2.331 112.2 23.8 20.8
1999 07 21 14 56.68 -14 51.4 1.839 2.363 108.2 24.1 20.9
1999 07 26 14 59.77 -15 22.3 1.932 2.394 104.3 24.3 21.1
1999 07 31 15 03.32 -15 53.3 2.025 2.425 100.5 24.3 21.2
1999 08 05 15 07.27 -16 24.4 2.120 2.456 96.8 24.2 21.3
1999 08 10 15 11.59 -16 55.2 2.215 2.486 93.1 24.0 21.4
1999 08 15 15 16.25 -17 25.9 2.310 2.515 89.5 23.7 21.5
1999 08 20 15 21.21 -17 56.2 2.406 2.544 86.0 23.4 21.6
1999 08 25 15 26.46 -18 26.1 2.501 2.573 82.5 22.9 21.7
1999 08 30 15 31.96 -18 55.5 2.595 2.600 79.1 22.4 21.8
1999 09 04 15 37.69 -19 24.2 2.689 2.628 75.7 21.8 21.9
1999 09 09 15 43.63 -19 52.2 2.782 2.655 72.3 21.2 22.0
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-J50
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