MPEC 2001-R12 : 1999 TK12
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M.P.E.C. 2001-R12 Issued 2001 Sept. 5, 17:15 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
1999 TK12
Revision to MPEC 1999-T53
Observations:
J99T12K 1C2001 08 08.71363 23 26 32.81 -29 43 18.5 413
J99T12K 1C2001 08 08.72153 23 26 32.19 -29 43 22.0 20.4 R 413
J99T12K 1C2001 08 09.68338 23 25 14.13 -29 48 36.7 413
J99T12K 1C2001 08 09.69370 23 25 13.25 -29 48 39.6 20.4 R 413
J99T12K 1C2001 08 24.61569 22 59 27.56 -30 47 19.9 20.6 R 413
J99T12K 1C2001 08 24.61819 22 59 27.25 -30 47 20.3 413
J99T12K 1C2001 08 24.62071 22 59 26.99 -30 47 20.7 413
Observer details:
413 Siding Spring. Observer R. H. McNaught. 1.0-m f/8 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
010808 413 22.9- 20.1- 010824 413 24.4- 21.8- MPC 40378 +0.019 day
Orbital elements:
1999 TK12
Epoch 2001 Oct. 18.0 TT = JDT 2452200.5 Spahr
M 279.98005 (2000.0) P Q
n 0.45143705 Peri. 112.01955 -0.36356941 -0.93155052
a 1.6829501 Node 359.23125 +0.62581308 -0.23981513
e 0.3933824 Incl. 24.48198 +0.69005454 -0.27331728
P 2.18 H 18.2 G 0.15 U 3
Residuals in seconds of arc
991010 704 0.1+ 0.4+ 991012 118 0.6- 0.0 991108 360 0.2- 0.1+
991010 704 0.7+ 0.5+ 991012 118 0.4- 0.3+ 991108 360 0.0 1.1-
991010 704 0.1- 0.4+ 991012 118 0.8- 0.2- 991108 360 0.2- 0.5-
991010 704 0.1- 0.9+ 991013 704 0.1- 0.5- 991112 071 0.2+ 0.7+
991010 704 0.6+ 0.7+ 991013 704 0.6- 1.2- 991112 071 0.5+ 0.6+
991011 704 0.3+ 0.0 991013 704 0.2- 1.0- 991112 071 1.0- 0.7+
991011 704 1.1- 0.5+ 991013 704 0.3- 0.9- 991112 071 0.5+ 0.1-
991011 704 0.7+ 0.4- 991013 704 0.7- 0.7- 991113 071 0.3- 0.6-
991011 704 0.8+ 0.4- 991013 711 0.6- 2.6- 991113 071 0.8- 0.0
991011 704 2.7+ 0.8- 991013 711 0.2+ 0.7- 991113 071 0.6- 0.2-
991011 704 0.4- 0.5- 991013 711 1.6- 0.5- 991114 071 1.4- 0.0
991011 704 0.5- 0.1- 991013 557 0.6+ 1.0- 991114 071 0.6- 0.4-
991011 704 0.4- 0.0 991013 557 0.4- 0.6- 991115 071 1.3- 1.2+
991011 704 0.3- 0.2- 991013 557 0.8+ 0.6- 991115 071 1.4- 2.0+
991011 704 0.5- 0.5- 991013 557 0.4- 0.3- 991115 071 0.7- 0.7+
991011 684 0.7+ 0.7- 991013 046 0.4+ 0.2+ 991115 071 (2.7+ 3.7+)
991011 684 0.5+ 0.4- 991013 046 0.9+ 0.9+ 991202 587 0.4+ 0.3-
991011 557 0.6- 0.4- 991013 046 0.3- 0.7+ 991202 587 0.1+ 0.3-
991011 557 0.6- 0.5+ 991013 046 0.5- 0.7+ 000203 587 0.3+ 0.1-
991011 118 1.8+ 0.4+ 991013 046 0.6- 0.3+ 000301 693 0.4- 0.1-
991011 118 1.1+ 1.0+ 991023 697 0.2- 0.1+ 000301 693 0.5- 0.2-
991012 704 0.5+ 0.6- 991023 697 0.3- 0.1+ 000301 693 0.5- 0.1-
991012 704 1.0+ 0.1- 991023 697 0.3- 0.1+ 000327 704 1.0- 0.0
991012 704 0.3+ 1.1- 991029 360 0.1- 0.1- 000327 704 0.4- 0.7-
991012 704 0.7+ 1.8- 991029 360 0.4- 0.2+ 000327 704 0.4+ 0.6-
991012 704 0.8+ 0.6- 991029 360 0.4- 0.0 000327 704 0.3- 0.0
991012 046 0.2- 0.5+ 991031 046 1.4- 1.0+ 010808 413 0.8- 1.4+
991012 046 1.9+ 0.5+ 991031 046 0.9- 1.6+ 010808 413 0.4- 0.5+
991012 046 0.1- 0.0 991031 046 1.2+ 0.7+ 010809 413 0.3- 0.1-
991012 046 0.2+ 0.1+ 991031 046 0.2- 0.3- 010809 413 0.2- 0.3+
991012 046 0.2+ 0.5+ 991031 046 0.2+ 0.1- 010824 413 0.4- 0.1+
991012 557 0.5- 0.2+ 991102 413 0.4+ 0.6- 010824 413 0.4- 0.0
991012 557 0.1- 0.2- 991102 413 0.6+ 0.0 010824 413 0.3+ 0.2-
Ephemeris:
1999 TK12 a,e,i = 1.68, 0.39, 24 q = 1.0209
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 08 29 22 50.35 -30 51.4 1.059 2.031 158.0 10.7 20.5
2001 09 08 22 28.62 -30 28.7 1.040 1.994 153.7 12.9 20.5
2001 09 18 22 07.97 -29 18.6 1.046 1.954 144.6 17.3 20.7
2001 09 28 21 51.01 -27 27.0 1.074 1.912 134.0 22.2 20.8
2001 10 08 21 39.18 -25 06.7 1.121 1.867 123.4 26.5 21.0
2001 10 18 21 32.76 -22 29.8 1.180 1.821 113.4 30.1 21.2
2001 10 28 21 31.35 -19 44.6 1.246 1.773 104.2 32.9 21.3
2001 11 07 21 34.22 -16 55.1 1.314 1.723 95.7 34.9 21.4
2001 11 17 21 40.64 -14 02.2 1.381 1.672 88.1 36.2 21.5
2001 11 27 21 50.01 -11 05.3 1.444 1.618 81.1 37.0 21.5
2001 12 07 22 01.81 -08 03.1 1.500 1.564 74.8 37.4 21.6
Timothy B. Spahr (C) Copyright 2001 MPC M.P.E.C. 2001-R12
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