MPEC 2001-M54: 1998 TX6 = 2001 KT2
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M.P.E.C. 2001-M54 Issued 2001 June 29, 18:02 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.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1998 TX6 = 2001 KT2
Revision to MPEC 2001-K22
Observations:
J98T06X 1951 07 08.39930 20 28 20.32 +17 09 13.4 261
J98T06X 1951 07 08.43402 20 28 27.51 +17 10 37.8 261
J98T06X C2001 06 12.22289 14 55 31.76 -04 19 02.7 19.1 R 699
J98T06X C2001 06 12.24469 14 55 30.92 -04 18 42.9 699
J98T06X C2001 06 12.26657 14 55 30.08 -04 18 24.3 699
J98T06X C2001 06 12.28852 14 55 29.23 -04 18 05.1 699
J98T06X C2001 06 15.18331 14 54 16.14 -03 37 50.4 19.6 704
J98T06X C2001 06 15.19505 14 54 15.81 -03 37 40.8 19.4 704
J98T06X C2001 06 15.20816 14 54 15.35 -03 37 30.4 19.6 704
J98T06X C2001 06 15.22015 14 54 15.14 -03 37 21.3 19.4 704
J98T06X C2001 06 21.19889 14 53 08.62 -02 24 28.1 18.1 704
J98T06X C2001 06 21.21134 14 53 08.52 -02 24 19.9 18.6 704
J98T06X C2001 06 21.23628 14 53 08.32 -02 24 03.4 18.1 704
J98T06X C2001 06 27.29022 14 54 14.29 -01 25 43.1 20.6 608
J98T06X C2001 06 27.30062 14 54 14.34 -01 25 37.1 20.2 608
J98T06X C2001 06 27.31121 14 54 14.52 -01 25 32.1 20.0 608
Observer details:
261 Palomar-DSS. Trail located and measured by A. Boattini, G. Forti and
G. D'Abramo. 1.2-m Schmidt. Observation times changed by -10 min.
608 Haleakala-NEAT/MSSS. Observers E. F. Helin, S. Pravdo, K. Lawrence,
P. Kervin, R. Maeda, J. Africano, M. Hicks. 1.2-m reflector + CCD.
699 Lowell Observatory-LONEOS. Observer B. A. Skiff. 0.59-m LONEOS Schmidt
+ CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, R. Huber, L. Manguso, S. Adams. Measurers J. Stuart,
R. Sayer, J. B. Evans, H. Viggh. 1.0-m f/2.15 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
510708 261 0.28- 0.03- 510708 261 0.28- 0.03- MPO 12907
Orbital elements:
1998 TX6 = 2001 KT2
Id. T. B. Spahr (MPO 12907)
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5 Marsden
M 316.48721 (2000.0) P Q
n 0.31520708 Peri. 97.85831 +0.63305639 +0.77255645
a 2.1383169 Node 211.58595 -0.74195643 +0.58751637
e 0.4704003 Incl. 5.36250 -0.22077196 +0.24079255
P 3.13 H 19.2 G 0.15 U 2
Residuals in seconds of arc
510708 261 1.5+ 1.1+ 981020 658 0.8+ 0.1- 010525 704 0.2+ 0.9+
510708 261 1.6- 0.3- 981020 658 0.3- 0.1- 010525 704 0.3+ 0.1+
981014 691 0.3+ 0.5- 981020 658 0.1- 0.1- 010525 704 0.3- 0.5+
981014 691 0.2+ 0.3- 981025 402 0.7+ 0.6+ 010525 704 0.7- 1.7+
981014 691 0.2+ 0.4- 981025 402 0.3+ 0.4- 010528 608 0.1- 0.7-
981015 691 0.4- 0.1+ 981025 402 0.7+ 0.8+ 010528 608 0.1+ 0.9-
981015 691 0.5- 0.1- 981027 658 0.2+ 0.3- 010528 608 0.3+ 0.7-
981015 691 0.3- 0.2+ 981027 658 0.4+ 0.2+ 010531 711 0.3- 0.2+
981015 691 0.5+ 0.3+ 981027 658 0.0 0.3+ 010531 711 0.1- 0.1-
981015 691 (0.7+ 2.2-) 981028 691 1.7- 0.2+ 010531 711 0.2+ 0.3+
981015 691 0.1- 0.1+ 981028 691 1.0- 0.2+ 010612 699 1.2+ 0.6-
981015 557 0.4- 0.5+ 981028 691 0.7- 0.3- 010612 699 0.9+ 0.3+
981015 557 0.2- 0.3- 010518 704 0.2- 0.2+ 010612 699 0.5+ 0.1-
981015 557 0.9- 0.1+ 010518 704 0.7- 0.6+ 010612 699 0.1- 0.1+
981016 691 0.5+ 0.3+ 010518 704 0.0 1.2+ 010615 704 0.3+ 0.3+
981016 691 0.6- 0.2+ 010518 704 0.1+ 0.2+ 010615 704 0.5+ 0.5+
981016 691 0.2- 0.1- 010521 704 0.1- 0.0 010615 704 0.7- 0.4+
981017 557 0.9- 0.3- 010521 704 0.8- 0.1- 010615 704 1.3+ 0.2-
981017 557 0.1+ 0.7+ 010521 704 0.0 0.2- 010621 704 0.6- 0.3-
981018 691 1.1+ 0.1- 010521 704 0.2+ 0.1- 010621 704 0.5- 0.3-
981018 691 0.5+ 0.3+ 010521 704 0.5+ 0.5+ 010621 704 0.4- 0.2-
981018 691 1.0+ 0.2- 010524 118 0.3- 1.2- 010627 608 0.9+ 1.2-
981019 658 0.5+ 0.8- 010524 118 0.4- 0.9- 010627 608 0.4- 0.4-
981019 658 0.1- 0.7- 010525 118 0.3- 0.2- 010627 608 0.3+ 0.7-
981019 658 0.2+ 0.2+ 010525 704 0.6- 0.1-
Ephemeris:
1998 TX6 a,e,i = 2.14, 0.47, 5 q = 1.1325
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 06 20 14 53.21 -02 37.7 0.374 1.294 131.5 36.0 19.1
2001 06 30 14 55.49 -01 04.7 0.362 1.247 122.2 43.6 19.2
2001 07 10 15 04.36 -00 14.9 0.351 1.207 114.8 49.9 19.2
2001 07 20 15 20.06 -00 05.5 0.341 1.174 109.3 54.8 19.2
2001 07 30 15 42.89 -00 32.8 0.331 1.150 105.7 58.2 19.2
2001 08 09 16 13.03 -01 31.4 0.321 1.136 104.2 59.9 19.2
2001 08 19 16 50.54 -02 55.6 0.314 1.133 104.6 59.8 19.1
2001 08 29 17 35.08 -04 35.7 0.313 1.140 106.8 58.0 19.1
2001 09 08 18 24.85 -06 14.8 0.322 1.158 110.1 54.8 19.1
2001 09 18 19 16.67 -07 33.8 0.344 1.186 113.7 50.9 19.1
2001 09 28 20 06.96 -08 17.9 0.382 1.222 116.6 47.2 19.3
2001 10 08 20 52.91 -08 23.0 0.436 1.265 118.2 44.1 19.6
2001 10 18 21 33.40 -07 54.2 0.507 1.314 118.2 41.9 20.0
2001 10 28 22 08.75 -06 59.1 0.592 1.368 117.0 40.3 20.3
2001 11 07 22 39.74 -05 45.3 0.691 1.425 114.7 39.2 20.7
2001 11 17 23 07.32 -04 18.6 0.803 1.485 111.5 38.3 21.1
2001 11 27 23 32.38 -02 43.0 0.926 1.546 107.8 37.4 21.5
2001 12 07 23 55.54 -01 01.8 1.060 1.608 103.6 36.5 21.8
Brian G. Marsden (C) Copyright 2001 MPC M.P.E.C. 2001-M54
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