MPEC 2008-P49 : 2007 TW431, 2007 TX431
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M.P.E.C. 2008-P49 Issued 2008 Aug. 10, 12:45 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://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
2007 TW431, 2007 TX431
Observations:
K07Th1W* C2007 10 15.05513 00 50 23.12 +03 47 17.3 22.0 R EP049304
K07Th1W C2007 10 15.11921 00 50 22.80 +03 47 15.4 EP049304
K07Th1W C2007 10 15.20686 00 50 22.35 +03 47 13.9 EP049304
K07Th1W C2007 10 16.06842 00 50 18.01 +03 46 53.2 EP049304
K07Th1W C2007 10 16.14182 00 50 17.60 +03 46 51.1 EP049304
K07Th1W C2007 10 16.18978 00 50 17.38 +03 46 49.9 EP049304
K07Th1W C2007 11 02.06875 00 48 55.59 +03 40 41.3 EP049304
K07Th1W C2007 11 04.01250 00 48 46.84 +03 40 04.0 EP049304
K07Th1X* C2007 10 15.46847 02 00 34.28 +12 18 11.4 23 R EP049568
K07Th1X C2007 10 15.57547 02 00 33.60 +12 18 06.9 EP049568
K07Th1X C2007 10 15.60692 02 00 33.40 +12 18 05.5 EP049568
K07Th1X C2007 11 04.07986 01 58 30.56 +12 04 20.1 EP049304
K07Th1X C2007 11 04.09166 01 58 30.48 +12 04 19.7 EP049304
K07Th1X C2007 12 06.12500 01 55 37.38 +11 44 13.0 EP049807
K07Th1X C2007 12 07.04444 01 55 33.56 +11 43 44.0 EP049807
K07Th1X C2007 12 07.07638 01 55 33.44 +11 43 43.1 EP049807
Observer details:
304 Las Campanas Observatory. Observers C. A. Trujillo, S. S. Sheppard.
Magellan 6.5-m reflector + CCD.
568 Mauna Kea. Observers C. A. Trujillo, S. S. Sheppard. Subaru 8.2-m
reflector + CCD.
807 Cerro Tololo. Observers C. A. Trujillo, S. S. Sheppard. Gemini 8.1-m
reflector + CCD.
Orbital elements:
Object H G Epoch M Peri. Node Incl. e a Arc C
K07Th1W 6.6 0.15 K07A7 359.975 356.681 16.261 25.882 0.16983 45.99998 20EX
K07Th1X 8.8 0.15 K07AR 345.489 219.583 212.031 16.637 0.44011 47.73692 53EX
Ephemerides:
2007 TW431 a,e,i = 46.00, 0.17, 26 q = 38.188
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 08 02 00 59.77 +05 25.3 37.763 38.189 114.1 1.4 22.6
2008 08 12 00 59.43 +05 24.3 37.617 38.189 123.8 1.3 22.6
2008 08 22 00 58.95 +05 22.4 37.486 38.189 133.5 1.1 22.5
2008 09 01 00 58.34 +05 19.8 37.375 38.190 143.3 0.9 22.5
2008 09 11 00 57.64 +05 16.6 37.288 38.190 153.2 0.7 22.5
2008 09 21 00 56.85 +05 12.9 37.228 38.190 163.1 0.4 22.5
2008 10 01 00 56.02 +05 09.0 37.196 38.190 173.1 0.2 22.4
2008 10 11 00 55.16 +05 04.9 37.193 38.190 176.6 0.1 22.4
2008 10 21 00 54.31 +05 00.9 37.221 38.190 166.6 0.3 22.4
2008 10 31 00 53.50 +04 57.3 37.278 38.190 156.4 0.6 22.5
2008 11 10 00 52.77 +04 54.1 37.364 38.190 146.2 0.8 22.5
2008 11 20 00 52.13 +04 51.5 37.474 38.191 136.0 1.0 22.5
2008 11 30 00 51.61 +04 49.7 37.607 38.191 125.7 1.2 22.6
2008 12 10 00 51.24 +04 48.8 37.757 38.191 115.5 1.3 22.6
2008 12 20 00 51.02 +04 48.9 37.920 38.191 105.3 1.4 22.6
2008 12 30 00 50.96 +04 50.0 38.092 38.191 95.1 1.5 22.6
2009 01 09 00 51.08 +04 52.2 38.266 38.191 84.9 1.5 22.6
2009 01 19 00 51.36 +04 55.4 38.437 38.191 74.8 1.4 22.6
2009 01 29 00 51.80 +04 59.6 38.601 38.192 64.8 1.3 22.6
2009 02 08 00 52.39 +05 04.7 38.752 38.192 54.8 1.2 22.6
2009 02 18 00 53.11 +05 10.6 38.886 38.192 44.9 1.0 22.6
2009 02 28 00 53.95 +05 17.2 38.999 38.192 35.1 0.9 22.6
2007 TX431 a,e,i = 47.74, 0.44, 17 q = 26.727
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 08 02 02 15.90 +12 58.7 28.440 28.527 93.9 2.0 23.6
2008 08 12 02 16.00 +12 57.6 28.266 28.519 103.4 2.0 23.6
2008 08 22 02 15.89 +12 55.4 28.100 28.512 113.1 1.9 23.5
2008 09 01 02 15.56 +12 52.1 27.944 28.504 122.8 1.7 23.5
2008 09 11 02 15.04 +12 47.8 27.805 28.497 132.7 1.5 23.5
2008 09 21 02 14.34 +12 42.6 27.685 28.490 142.6 1.2 23.5
2008 10 01 02 13.49 +12 36.7 27.589 28.482 152.6 0.9 23.4
2008 10 11 02 12.52 +12 30.2 27.520 28.475 162.8 0.6 23.4
2008 10 21 02 11.48 +12 23.3 27.479 28.468 172.9 0.2 23.3
2008 10 31 02 10.41 +12 16.3 27.469 28.460 176.7 0.1 23.3
2008 11 10 02 09.35 +12 09.4 27.489 28.453 166.4 0.5 23.4
2008 11 20 02 08.36 +12 02.9 27.539 28.446 156.1 0.8 23.4
2008 11 30 02 07.46 +11 56.9 27.618 28.438 145.8 1.1 23.4
2008 12 10 02 06.71 +11 51.8 27.721 28.431 135.4 1.4 23.5
2008 12 20 02 06.13 +11 47.6 27.847 28.424 125.1 1.6 23.5
2008 12 30 02 05.75 +11 44.5 27.990 28.417 114.8 1.8 23.5
2009 01 09 02 05.59 +11 42.6 28.146 28.409 104.6 1.9 23.5
2009 01 19 02 05.66 +11 41.9 28.310 28.402 94.4 2.0 23.6
2009 01 29 02 05.97 +11 42.6 28.476 28.395 84.3 2.0 23.6
2009 02 08 02 06.50 +11 44.4 28.639 28.388 74.3 1.9 23.6
2009 02 18 02 07.26 +11 47.4 28.794 28.381 64.4 1.8 23.6
2009 02 28 02 08.21 +11 51.4 28.937 28.373 54.5 1.6 23.6
2009 03 10 02 09.34 +11 56.3 29.062 28.366 44.8 1.4 23.6
2009 03 20 02 10.63 +12 01.9 29.167 28.359 35.2 1.2 23.6
The assumed 1:2 Neptune librator 2007 TX431 remains more than 17 AU from
Neptune over a 14 000-year period.
Brian G. Marsden (C) Copyright 2008 MPC M.P.E.C. 2008-P49
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