MPEC 1998-T05: 1998 ST49
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M.P.E.C. 1998-T05 Issued 1998 Oct. 2, 20:31 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 ST49
Observations:
J98S49T* C1998 09 29.43350 05 32 01.15 +20 55 43.0 17.7 704
J98S49T C1998 09 29.44594 05 32 08.03 +20 57 23.3 18.6 704
J98S49T C1998 09 29.47085 05 32 21.76 +21 00 40.9 17.9 704
J98S49T C1998 09 29.48317 05 32 28.74 +21 02 20.2 17.8 704
J98S49T C1998 09 30.07424 05 38 10.59 +22 20 39.5 557
J98S49T C1998 09 30.07766 05 38 12.56 +22 21 07.1 557
J98S49T C1998 09 30.07837 05 38 12.97 +22 21 12.5 557
J98S49T C1998 09 30.07909 05 38 13.37 +22 21 18.4 16.2 V 557
J98S49T C1998 09 30.10699 05 38 29.46 +22 25 02.8 16.4 V 046
J98S49T C1998 09 30.10778 05 38 29.93 +22 25 09.3 046
J98S49T C1998 09 30.10905 05 38 30.66 +22 25 19.4 046
J98S49T C1998 09 30.10960 05 38 31.00 +22 25 23.9 046
J98S49T C1998 09 30.11014 05 38 31.32 +22 25 28.3 046
J98S49T C1998 09 30.11070 05 38 31.65 +22 25 32.8 046
J98S49T C1998 10 01.75362 05 55 19.00 +26 06 22.4 16.7 R 422
J98S49T C1998 10 01.75427 05 55 19.34 +26 06 26.6 16.9 R 422
J98S49T C1998 10 01.75488 05 55 19.81 +26 06 31.9 16.7 R 422
J98S49T C1998 10 01.75542 05 55 20.13 +26 06 36.1 16.8 R 422
J98S49T C1998 10 02.68744 06 05 31.39 +28 10 08.9 411
J98S49T C1998 10 02.69043 06 05 33.47 +28 10 34.3 411
J98S49T C1998 10 02.69944 06 05 39.43 +28 11 45.8 411
J98S49T C1998 10 02.73497 06 06 02.43 +28 17 14.4 16.5 R 422
J98S49T IC1998 10 02.73542 06 06 02.74 +28 17 18.0 16.3 R 422
J98S49T C1998 10 02.73613 06 06 03.21 +28 17 24.2 16.5 R 422
J98S49T C1998 10 02.73671 06 06 03.62 +28 17 28.8 16.9 R 422
Observer details:
046 Klet. Observers M. Tichy, Z. Moravec. Measurer M. Tichy. 0.57-m f/5.2
reflector + CCD.
411 Oizumi. Observer T. Kobayashi. 0.41-m f/4.3 reflector + CCD.
422 Loomberah. Observer G. J. Garradd. 0.45-m f/5.4 reflector + CCD.
557 Ondrejov. Observer L. Sarounova. 0.65-m f/3.6 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 ST49
Epoch 1998 Sept. 24.0 TT = JDT 2451080.5 Williams
M 347.25894 (2000.0) P Q
n 0.28688387 Peri. 47.50443 +0.42443783 -0.89558578
a 2.2768371 Node 18.72618 +0.65997779 +0.20517729
e 0.5885107 Incl. 24.53944 +0.61990471 +0.39475105
P 3.44 H 18.0 G 0.15
From 25 observations 1998 Sept. 29-Oct. 2.
Ephemeris:
1998 ST49 a,e,i = 2.28, 0.59, 25 q = 0.9369
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 09 24 04 47.47 +09 47.1 0.247 1.107 108.6 59.2 17.3
1998 09 29 05 27.95 +19 58.7 0.222 1.074 103.2 65.2 17.2
1998 10 04 06 20.59 +31 02.3 0.212 1.044 96.1 72.3 17.3
1998 10 09 07 25.93 +40 36.5 0.218 1.017 88.6 79.0 17.5
1998 10 14 08 37.94 +46 41.0 0.239 0.993 82.1 84.1 17.8
1998 10 19 09 45.43 +49 09.2 0.270 0.973 77.3 87.0 18.2
1998 10 24 10 40.64 +49 12.6 0.308 0.957 74.1 87.9 18.4
1998 10 29 11 22.86 +48 02.4 0.350 0.946 72.0 87.4 18.7
1998 11 03 11 54.79 +46 20.7 0.393 0.939 70.7 86.0 18.9
1998 11 08 12 19.37 +44 28.1 0.436 0.937 70.1 84.0 19.0
1998 11 13 12 38.82 +42 34.3 0.478 0.940 69.9 81.5 19.1
1998 11 18 12 54.66 +40 43.3 0.518 0.948 70.2 78.9 19.2
1998 11 23 13 07.85 +38 57.4 0.556 0.961 70.7 76.1 19.3
1998 11 28 13 19.05 +37 17.4 0.591 0.978 71.6 73.3 19.4
1998 12 03 13 28.68 +35 44.0 0.623 0.999 72.8 70.6 19.4
1998 12 08 13 37.02 +34 17.6 0.651 1.023 74.3 67.9 19.5
1998 12 13 13 44.25 +32 58.9 0.675 1.051 76.1 65.4 19.6
1998 12 18 13 50.44 +31 48.1 0.695 1.082 78.1 62.9 19.6
1998 12 23 13 55.62 +30 45.5 0.712 1.115 80.5 60.5 19.7
1998 12 28 13 59.76 +29 51.2 0.724 1.150 83.2 58.1 19.7
1999 01 02 14 02.85 +29 04.9 0.733 1.187 86.2 55.8 19.7
1999 01 07 14 04.84 +28 26.8 0.739 1.225 89.5 53.4 19.7
1999 01 12 14 05.63 +27 56.5 0.742 1.264 93.1 51.0 19.7
1999 01 17 14 05.12 +27 33.8 0.742 1.304 97.1 48.5 19.7
1999 01 22 14 03.19 +27 17.8 0.741 1.344 101.5 45.8 19.7
1999 01 27 13 59.72 +27 07.4 0.738 1.385 106.2 43.1 19.7
1999 02 01 13 54.64 +27 01.3 0.735 1.427 111.2 40.1 19.7
1999 02 06 13 47.89 +26 57.8 0.732 1.468 116.6 36.9 19.7
1999 02 11 13 39.45 +26 54.7 0.731 1.510 122.3 33.5 19.6
1999 02 16 13 29.38 +26 49.4 0.731 1.551 128.3 30.0 19.6
1999 02 21 13 17.85 +26 39.3 0.735 1.592 134.3 26.4 19.5
1999 02 26 13 05.18 +26 21.7 0.744 1.633 140.4 22.7 19.5
1999 03 03 12 51.78 +25 54.7 0.758 1.674 146.1 19.3 19.5
1999 03 08 12 38.13 +25 17.2 0.777 1.715 151.2 16.2 19.5
1999 03 13 12 24.70 +24 29.3 0.803 1.755 155.0 13.8 19.5
1999 03 18 12 11.95 +23 31.9 0.836 1.795 157.0 12.5 19.6
1999 03 23 12 00.27 +22 26.5 0.876 1.835 156.7 12.4 19.8
1999 03 28 11 49.92 +21 15.5 0.923 1.874 154.5 13.3 20.0
1999 04 02 11 41.03 +20 00.8 0.976 1.912 150.9 14.7 20.2
1999 04 07 11 33.62 +18 44.4 1.035 1.950 146.6 16.4 20.4
1999 04 12 11 27.66 +17 27.8 1.100 1.988 142.0 18.1 20.6
1999 04 17 11 23.06 +16 11.9 1.170 2.026 137.3 19.6 20.9
1999 04 22 11 19.73 +14 57.4 1.245 2.062 132.6 21.0 21.1
1999 04 27 11 17.54 +13 44.7 1.323 2.099 128.0 22.2 21.3
1999 05 02 11 16.36 +12 34.1 1.405 2.134 123.6 23.2 21.5
1999 05 07 11 16.07 +11 25.5 1.491 2.170 119.2 23.9 21.7
1999 05 12 11 16.56 +10 19.0 1.579 2.205 115.0 24.5 21.8
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-T05
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