MPEC 1999-C09 : 1998 TU3
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M.P.E.C. 1999-C09 Issued 1999 Feb. 5, 14:57 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 TU3
Revision to MPEC 1998-U03
Observations:
J98T03U A1982 12 04.42439 22 15 56.20 -19 24 12.8 413
J98T03U A1982 12 04.43481 22 15 57.09 -19 24 02.2 413
J98T03U A1982 12 05.42581 22 17 21.17 -19 08 48.4 413
J98T03U A1982 12 05.43623 22 17 22.06 -19 08 36.5 413
J98T03U C1995 11 21.05541 18 52 02.25 -25 31 25.1 16.5 V 692
J98T03U C1995 11 21.05678 18 52 02.68 -25 31 25.9 692
J98T03U C1995 11 21.05808 18 52 03.09 -25 31 24.6 692
J98T03U C1999 02 03.40104 00 05 03.82 -01 48 07.7 16.7 R 428
J98T03U C1999 02 03.40421 00 05 04.14 -01 48 04.0 16.7 R 428
Observer details:
413 Siding Spring. Observers M. Hartley, K. S. Russell, A. Savage.
Measurer D. J. Asher. 1.2-m U.K. Schmidt.
428 Reedy Creek. Observer J. Broughton. 0.25-m f/6.3 Schmidt-Cassegrain
+ CCD.
692 Steward Observatory, Tucson. Observer C. W. Hergenrother. 0.53-m f/15
Cassegrain + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
821204 413 0.3- 1.8- 990203 428 1.6+ 0.1+ MPC 33760 -0.0047 day
Orbital elements:
1998 TU3
Id. D. J. Asher (1982 observations), G. V. Williams (1995 observations),
S. Nakano (1995 observations)
Epoch 1999 Jan. 22.0 TT = JDT 2451200.5 Williams
M 286.48175 (2000.0) P Q
n 1.41106984 Peri. 84.50039 -0.98842706 +0.12056174
a 0.7872338 Node 102.40007 -0.14668282 -0.91434584
e 0.4838811 Incl. 5.40923 +0.03867948 -0.38657025
P 0.70 H 15.0 G 0.15 U 5
Residuals in seconds of arc
821204 413 1.2- 0.5- 981017 046 0.1- 0.6+ 981128 104 0.6+ 0.7+
821204 413 0.6- 0.3+ 981017 046 0.4+ 0.1- 981201 426 0.2+ 0.7+
821205 413 (0.6- 3.3-) 981017 046 0.4- 0.1+ 981201 426 0.1- 0.4+
821205 413 0.1+ 1.2- 981017 046 0.6- 0.3+ 981201 426 0.1+ 0.6+
951121 692 0.4- 0.6- 981017 046 0.0 0.5+ 981201 426 0.2+ 0.3+
951121 692 0.1- 1.7- 981018 670 0.4+ 0.9+ 981204 428 0.6+ 0.2-
951121 692 0.2+ 0.7- 981018 670 0.2- 0.7- 981204 428 1.0+ 0.2-
981013 704 1.3+ 0.3+ 981018 670 0.2- 0.5+ 981209 118 0.3- 1.8+
981013 704 0.6+ 0.4+ 981018 673 0.9- 0.0 981209 118 0.3- 1.8+
981013 704 0.8+ 0.7+ 981018 673 1.3- 0.2+ 981209 118 0.6- 1.8+
981013 704 (0.5+ 2.5+) 981018 673 1.2- 0.3+ 981211 360 0.0 0.2-
981013 844 0.5+ 0.1+ 981018 428 0.1- 0.1+ 981211 360 0.0 0.5-
981014 844 0.1+ 0.0 981018 428 0.5- 0.3+ 981211 360 0.1+ 0.2-
981014 844 0.6+ 0.2+ 981018 360 0.2- 0.3+ 981212 422 0.5- 0.7-
981014 844 0.1+ 0.0 981018 360 0.8- 0.1- 981212 422 0.7- 0.5-
981014 844 0.3+ 0.1- 981018 360 0.9- 0.1- 981212 422 0.7- 0.5-
981014 844 0.0 0.1- 981021 428 0.2- 0.4+ 981213 104 1.0- 0.7-
981014 704 0.2- 0.6- 981021 428 0.3- 0.0 981213 104 0.8+ 1.2+
981014 704 0.7+ 0.2- 981021 360 0.7- 0.4+ 981213 104 (2.8+ 2.9+)
981014 704 0.4- 0.4+ 981021 360 0.7- 0.4+ 981221 422 0.3- 0.2+
981014 704 0.6- 0.7+ 981021 360 0.7- 0.1+ 981221 422 0.0 0.2+
981014 422 0.3+ 0.0 981021 422 0.3- 0.3+ 981221 422 0.1+ 0.2+
981014 422 0.4+ 0.0 981021 422 0.5- 0.5+ 981223 118 0.4+ 0.1-
981014 422 0.3+ 0.0 981021 422 0.4- 0.4+ 981223 118 0.2+ 0.3-
981014 422 0.3+ 0.0 981022 587 0.7- 0.0 981226 428 0.7- 0.1-
981014 104 0.3+ 0.7+ 981024 426 0.3- 0.0 981226 428 0.2- 0.0
981014 104 0.4+ 0.5+ 981024 426 0.4- 0.2+ 981226 428 0.1- 0.2+
981014 104 0.4+ 0.2+ 981024 426 0.4- 0.1+ 981228 046 0.8- 0.3-
981014 104 0.5+ 0.4+ 981028 587 0.6+ 0.6- 981228 046 0.4- 0.1-
981015 670 0.5+ 0.1- 981028 587 1.6+ 1.4- 981228 046 0.6- 0.1-
981015 670 0.6+ 0.2- 981101 860 0.3+ 0.6- 981228 046 0.7- 0.3-
981015 844 0.0 0.1+ 981102 860 0.6+ 0.4- 990106 428 0.2- 0.3+
981015 670 0.0 0.6- 981102 860 0.6+ 0.0 990106 428 0.2- 0.2-
981015 844 0.7+ 0.5+ 981104 428 0.8- 1.1- 990106 428 0.0 0.0
981015 844 0.1- 0.6- 981104 428 0.2- 1.2- 990106 422 1.4- 0.2+
981015 844 0.3- 0.6- 981104 428 0.3- 1.5- 990106 046 0.3+ 0.6+
981015 428 0.1+ 0.1+ 981104 428 0.2- 0.8- 990106 046 0.2+ 0.7+
981015 428 0.1- 0.3+ 981108 360 0.0 0.6- 990106 046 0.5+ 0.4+
981015 422 0.2+ 0.3+ 981108 360 0.2+ 0.6- 990106 046 0.0 0.6+
981015 422 0.2+ 0.3+ 981108 360 0.0 0.6- 990114 428 0.5+ 0.5-
981015 422 0.3+ 0.2+ 981108 426 0.7+ 0.4- 990115 428 0.0 0.1+
981015 422 0.4+ 0.1+ 981108 426 0.4+ 0.6- 990115 422 0.2+ 0.3+
981015 428 0.0 0.1+ 981108 426 0.4+ 0.4- 990115 422 0.3+ 0.4+
981016 758 0.2+ 1.0+ 981111 046 0.2+ 0.5- 990115 422 0.5+ 0.2+
981016 758 1.0- 1.2+ 981111 046 0.2+ 0.1- 990118 428 0.1+ 0.0
981016 758 0.4- 0.2+ 981111 046 0.1+ 0.2- 990118 428 0.6- 0.7-
981016 758 0.3- 0.3+ 981112 360 0.2+ 0.2- 990119 428 0.5+ 0.3+
981016 758 0.4- 0.1+ 981112 360 0.3+ 0.2- 990119 428 0.4+ 0.6+
981016 758 0.3- 0.4+ 981112 360 0.4+ 0.3- 990119 428 0.1+ 0.5+
981016 670 1.0+ 1.6- 981115 428 0.6+ 0.5+ 990122 428 1.1- 0.2-
981016 670 0.3+ 1.2- 981115 428 1.0+ 0.5+ 990122 428 0.0 0.2-
981016 670 0.3- 0.7- 981115 587 0.3+ 0.4- 990123 428 0.2- 0.4-
981016 422 0.2- 0.4- 981115 587 0.8+ 0.4+ 990123 428 0.1+ 0.5-
981016 422 0.1- 0.6- 981121 426 0.7+ 0.5+ 990126 428 0.5- 1.0-
981016 422 0.4- 0.4- 981121 426 0.6+ 0.2+ 990126 428 0.5+ 0.7-
981017 428 0.2- 0.1- 981121 426 0.3+ 0.4+ 990126 428 0.6- 0.8-
981017 428 0.6- 0.6- 981128 104 1.2+ 0.0 990203 428 0.9+ 0.3-
981017 428 0.5- 0.2- 981128 104 0.4+ 0.8+ 990203 428 1.1+ 0.0
Ephemeris:
1998 TU3 a,e,i = 0.79, 0.48, 5 q = 0.4063
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 02 01 00 01.02 -02 30.7 0.910 0.768 47.6 71.3 16.7
1999 02 06 00 09.16 -01 02.9 0.874 0.719 45.0 75.8 16.6
1999 02 11 00 15.89 +00 20.4 0.830 0.667 42.0 81.7 16.6
1999 02 16 00 20.33 +01 35.0 0.779 0.614 38.4 89.5 16.6
1999 02 21 00 21.06 +02 33.4 0.723 0.560 33.9 100.0 16.7
1999 04 02 22 47.47 -06 15.1 0.911 0.517 31.0 84.0 16.3
1999 04 07 22 58.79 -05 48.0 0.997 0.569 33.1 73.8 16.3
1999 04 12 23 11.97 -05 02.9 1.074 0.622 34.7 66.4 16.5
1999 04 17 23 25.95 -04 06.8 1.140 0.675 36.0 60.9 16.6
1999 04 22 23 40.19 -03 04.4 1.198 0.727 37.2 56.8 16.8
1999 05 02 00 08.48 -00 50.2 1.289 0.822 39.6 51.4 17.0
1999 05 12 00 36.03 +01 27.1 1.351 0.905 42.1 48.4 17.3
1999 05 22 01 02.84 +03 41.8 1.389 0.977 44.7 46.8 17.4
1999 06 01 01 29.09 +05 50.9 1.405 1.037 47.4 46.1 17.6
1999 06 11 01 55.11 +07 53.1 1.403 1.085 50.2 46.0 17.7
1999 06 21 02 21.18 +09 47.2 1.384 1.122 53.1 46.4 17.7
1999 07 01 02 47.61 +11 32.4 1.351 1.148 55.9 47.2 17.7
1999 07 11 03 14.79 +13 08.1 1.305 1.163 58.6 48.2 17.7
1999 07 21 03 43.10 +14 33.1 1.249 1.168 61.1 49.6 17.7
1999 07 31 04 13.02 +15 45.9 1.184 1.163 63.3 51.3 17.6
1999 08 10 04 45.21 +16 44.3 1.113 1.146 65.1 53.3 17.5
1999 08 20 05 20.40 +17 24.4 1.038 1.120 66.2 55.8 17.4
1999 08 30 05 59.56 +17 40.4 0.964 1.082 66.4 58.8 17.2
1999 09 09 06 43.83 +17 22.7 0.893 1.033 65.5 62.6 17.1
1999 09 19 07 34.22 +16 17.6 0.833 0.973 63.1 67.1 16.9
1999 09 29 08 31.27 +14 08.6 0.790 0.900 58.9 72.4 16.8
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-C09
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