MPEC 1998-T04 : 1998 SS49
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M.P.E.C. 1998-T04 Issued 1998 Oct. 2, 20:28 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 SS49
Observations:
J98S49S* C1998 09 29.37562 04 45 23.76 +19 16 21.3 18.2 704
J98S49S C1998 09 29.38788 04 45 25.81 +19 16 33.1 18.5 704
J98S49S C1998 09 29.40017 04 45 27.75 +19 16 41.8 18.5 704
J98S49S C1998 09 29.41245 04 45 29.57 +19 16 50.6 19.0 704
J98S49S C1998 09 29.42481 04 45 31.56 +19 17 02.2 18.7 704
J98S49S C1998 09 30.03917 04 47 10.88 +19 25 02.7 557
J98S49S C1998 09 30.04150 04 47 11.27 +19 25 04.6 18.0 V 557
J98S49S C1998 09 30.08894 04 47 18.85 +19 25 43.0 17.6 V 046
J98S49S C1998 09 30.09019 04 47 19.06 +19 25 43.9 046
J98S49S C1998 09 30.09146 04 47 19.24 +19 25 44.9 046
J98S49S C1998 09 30.09266 04 47 19.44 +19 25 45.9 046
J98S49S C1998 09 30.47942 04 48 22.64 +19 30 55.4 658
J98S49S C1998 09 30.48510 04 48 23.56 +19 31 00.0 658
J98S49S C1998 09 30.49686 04 48 25.41 +19 31 09.5 658
J98S49S C1998 09 30.64152 04 48 49.67 +19 33 20.4 18.2 R 422
J98S49S C1998 09 30.64250 04 48 49.87 +19 33 21.1 18.0 R 422
J98S49S C1998 09 30.64565 04 48 50.35 +19 33 23.4 18.0 R 422
J98S49S C1998 10 01.74698 04 51 53.90 +19 48 26.3 18.2 R 422
J98S49S C1998 10 01.74807 04 51 54.12 +19 48 27.4 17.9 R 422
J98S49S C1998 10 01.74877 04 51 54.24 +19 48 27.9 18.1 R 422
J98S49S C1998 10 02.64073 04 54 27.44 +20 00 42.1 411
J98S49S C1998 10 02.64246 04 54 27.75 +20 00 44.2 411
J98S49S C1998 10 02.65440 04 54 29.75 +20 00 54.1 411
J98S49S IC1998 10 02.72394 04 54 41.34 +20 02 08.8 17.8 R 422
J98S49S C1998 10 02.72462 04 54 41.54 +20 02 08.6 17.4 R 422
J98S49S C1998 10 02.72527 04 54 41.65 +20 02 09.1 17.3 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.
658 Dominion Astrophysical Observatory. Observer D. D. Balam. 1.82-m
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 SS49 PHA 0.004
Epoch 1998 Sept. 24.0 TT = JDT 2451080.5 Williams
M 322.11906 (2000.0) P Q
n 0.38581793 Peri. 102.96484 -0.80314321 -0.58300627
a 1.8687352 Node 41.55391 +0.44925993 -0.72793782
e 0.6302500 Incl. 10.66317 +0.39131381 -0.36084653
P 2.55 H 16.5 G 0.15
From 26 observations 1998 Sept. 29-Oct. 2.
Ephemeris:
1998 SS49 a,e,i = 1.87, 0.63, 11 q = 0.6910
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 09 24 04 31.80 +18 10.4 0.818 1.510 111.7 38.1 18.5
1998 09 29 04 44.39 +19 11.5 0.739 1.463 113.5 38.9 18.2
1998 10 04 04 58.44 +20 20.4 0.664 1.415 115.0 39.8 17.9
1998 10 09 05 14.50 +21 38.8 0.591 1.366 116.1 41.0 17.6
1998 10 14 05 33.39 +23 09.1 0.523 1.317 116.6 42.6 17.3
1998 10 19 05 56.31 +24 52.9 0.458 1.267 116.3 44.8 17.0
1998 10 24 06 25.09 +26 49.5 0.398 1.217 114.7 48.0 16.7
1998 10 29 07 02.30 +28 51.8 0.346 1.166 111.6 52.4 16.5
1998 11 03 07 51.02 +30 37.3 0.302 1.115 106.2 58.7 16.2
1998 11 08 08 53.03 +31 17.1 0.271 1.064 98.2 67.2 16.2
1998 11 13 10 04.71 +29 47.7 0.255 1.013 87.9 77.5 16.3
1998 11 18 11 15.66 +25 49.0 0.258 0.963 76.9 88.1 16.6
1998 11 23 12 16.16 +20 20.6 0.278 0.915 66.9 96.9 17.0
1998 12 03 13 40.11 +09 38.5 0.357 0.825 53.5 106.1 17.8
1998 12 13 14 33.01 +01 27.0 0.469 0.751 47.4 105.2 18.1
1998 12 23 15 13.07 -04 56.4 0.599 0.704 45.2 97.7 18.1
1999 01 02 15 49.11 -10 14.7 0.737 0.692 44.6 86.9 18.1
1999 01 12 16 24.45 -14 39.8 0.872 0.717 45.0 75.7 18.1
1999 01 22 16 59.34 -18 11.6 0.996 0.776 46.1 66.2 18.3
1999 02 01 17 32.94 -20 52.2 1.101 0.856 48.1 58.9 18.5
1999 02 11 18 04.51 -22 48.9 1.188 0.950 50.8 53.6 18.7
1999 02 21 18 33.55 -24 11.5 1.254 1.050 54.3 49.9 19.0
1999 03 03 18 59.79 -25 09.9 1.300 1.152 58.5 47.2 19.2
1999 03 13 19 23.15 -25 52.9 1.329 1.253 63.4 45.1 19.3
1999 03 23 19 43.54 -26 28.5 1.341 1.353 68.9 43.4 19.5
1999 04 02 20 00.87 -27 03.4 1.338 1.450 75.1 41.8 19.6
1999 04 12 20 15.00 -27 43.6 1.322 1.544 82.0 40.0 19.6
1999 04 22 20 25.67 -28 34.3 1.296 1.634 89.6 37.9 19.7
1999 05 02 20 32.49 -29 39.7 1.263 1.722 98.0 35.4 19.6
1999 05 12 20 35.02 -31 02.5 1.227 1.805 107.2 32.3 19.6
1999 05 22 20 32.65 -32 42.6 1.192 1.886 117.3 28.5 19.5
1999 06 01 20 24.95 -34 35.3 1.166 1.963 128.3 23.9 19.4
1999 06 11 20 11.82 -36 30.3 1.153 2.036 139.7 18.8 19.3
1999 06 21 19 53.90 -38 12.6 1.159 2.107 151.0 13.5 19.2
1999 07 01 19 33.02 -39 26.2 1.191 2.174 160.0 9.2 19.2
1999 07 11 19 11.78 -40 02.3 1.249 2.238 162.1 8.0 19.3
1999 07 21 18 52.83 -40 01.6 1.335 2.300 155.9 10.4 19.6
1999 07 31 18 38.05 -39 33.5 1.445 2.358 146.4 13.8 20.0
1999 08 10 18 28.09 -38 49.1 1.577 2.414 136.4 16.8 20.3
1999 08 20 18 22.85 -37 57.8 1.726 2.467 126.6 19.2 20.6
1999 08 30 18 21.77 -37 05.4 1.888 2.518 117.4 20.9 20.9
1999 09 09 18 24.14 -36 14.8 2.060 2.565 108.6 21.9 21.2
1999 09 19 18 29.35 -35 26.8 2.238 2.611 100.2 22.3 21.4
1999 09 29 18 36.81 -34 41.2 2.418 2.654 92.2 22.2 21.6
1999 10 09 18 46.06 -33 57.2 2.599 2.694 84.5 21.7 21.8
1999 10 19 18 56.75 -33 13.8 2.777 2.732 77.1 20.8 21.9
1999 10 29 19 08.54 -32 30.2 2.949 2.768 69.8 19.7 22.0
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-T04
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