MPEC 1999-K42: 1997 TD
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M.P.E.C. 1999-K42 Issued 1999 May 27, 15:29 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 ISSN 1523-6714
1997 TD
Revision to MPEC 1997-U10
Observations:
J97T00D A1987 05 10.76745 20 32 51.24 +01 48 31.2 413
J97T00D C1999 05 14.14733 08 53 57.27 +15 07 14.2 693
J97T00D C1999 05 14.15134 08 53 57.47 +15 07 13.9 693
J97T00D C1999 05 14.15532 08 53 57.57 +15 07 14.3 693
Observer details:
413 Siding Spring. Measurer R. H. McNaught. 1.2-m Schmidt.
693 Catalina Station, Tucson. Observers C. W. Hergenrother, A. E. Gleason.
1.5-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
870510 413 0.96+ 0.04- 990514 693 44.3- 1.6+ MPC 31145 +0.33 day
Orbital elements:
1997 TD
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Williams
M 203.48379 (2000.0) P Q
n 0.29187285 Peri. 170.60873 +0.86554792 +0.49450293
a 2.2508173 Node 159.16972 -0.47276402 +0.85901298
e 0.4680295 Incl. 12.89084 -0.16529062 +0.13252756
P 3.38 H 16.4 G 0.15 U 1
Residuals in seconds of arc
870510 413 0.1+ 0.6+ 971017 046 0.0 0.5+ 971029 360 0.1+ 0.4-
971001 566 0.6+ 0.9+ 971017 861 0.4- 0.2- 971031 426 0.3+ 0.7-
971001 566 0.8+ 1.1+ 971018 861 0.3- 0.6- 971031 426 0.2+ 0.6-
971001 566 0.6+ 1.0+ 971018 861 0.8+ 0.0 971031 426 0.3- 0.8-
971002 673 0.3+ 1.1- 971021 360 0.0 0.2- 971102 426 0.1+ 0.1+
971002 673 0.8+ 1.1- 971021 360 0.0 0.0 971102 426 0.8- 0.1+
971002 673 0.0 1.1- 971021 360 0.0 0.4- 971102 426 0.1- 0.6+
971002 104 0.4+ 0.8+ 971022 046 0.1- 0.2+ 971102 046 0.2- 0.2-
971002 104 1.2+ 0.4+ 971022 046 0.3- 0.3- 971102 046 0.1+ 0.1-
971002 104 0.5- 1.0+ 971022 046 0.1- 0.1+ 971102 046 0.1- 0.2-
971002 104 0.4+ 0.0 971023 861 1.0- 0.6- 971102 587 0.2- 0.1-
971002 124 (4.8+ 0.2+) 971023 861 0.6- 0.4- 971102 046 0.3- 0.1-
971002 124 (0.9- 2.3+) 971023 861 0.8+ 1.2- 971102 587 0.5- 0.0
971003 104 0.6- 0.3- 971023 422 0.2- 0.0 971104 402 0.1+ 0.2-
971003 104 1.2- 0.2+ 971023 422 0.1+ 0.0 971104 402 0.3- 0.7-
971003 104 0.6- 0.3+ 971023 422 0.4- 0.0 971104 402 0.2- 0.1-
971003 046 0.8+ 0.6+ 971024 046 0.6+ 0.1+ 971105 426 0.2+ 0.8-
971003 046 0.7- 0.5- 971024 046 0.4+ 0.0 971105 426 0.4+ 0.5-
971003 046 1.2- 0.6- 971024 046 0.6+ 0.1+ 971105 426 0.1+ 0.4-
971003 046 0.7- 0.3- 971024 046 1.1+ 0.1- 971106 422 0.3- 0.2-
971003 046 1.2- 0.2- 971025 422 0.6+ 0.1+ 971106 422 0.3- 0.2-
971003 046 1.2- 0.2- 971025 422 1.3+ 0.2- 971106 422 0.4- 0.4-
971003 046 0.5- 0.2- 971025 422 0.9+ 0.0 971107 381 0.3- 0.1-
971003 046 0.2- 0.3+ 971026 700 1.5+ 0.4- 971107 381 0.2- 0.2-
971003 046 0.4- 0.8+ 971026 700 1.6+ 0.1- 971107 381 0.4- 0.2-
971003 861 0.7+ 0.1+ 971026 700 0.7+ 0.3- 971118 587 1.1+ 0.5-
971003 861 0.8- 0.3- 971026 897 (2.5+ 0.6-) 971118 587 1.1+ 1.2-
971003 861 0.8- 0.0 971026 897 (2.1+ 0.5+) 971119 402 0.0 0.0
971004 670 0.1+ 0.1+ 971026 897 1.4+ 0.7+ 971119 402 0.5- 0.1+
971004 670 0.1+ 0.7- 971027 046 1.6+ 1.0+ 971119 402 0.8- 0.2+
971004 670 0.6- 0.1+ 971027 046 0.5- 0.4+ 971120 360 0.2- 0.6+
971004 861 0.3- 0.9+ 971027 046 0.6+ 0.5+ 971120 360 0.2- 0.5+
971004 861 0.2- 0.4- 971028 861 0.3- 0.1+ 971120 360 0.3- 0.5+
971004 861 1.9- 0.3+ 971028 861 0.1+ 0.1- 971126 566 0.7- 0.3+
971004 861 1.3- 0.1- 971028 861 (3.5+ 0.1-) 971126 566 1.1- 0.6+
971005 700 0.1+ 0.4+ 971028 402 1.2+ 0.2+ 971126 566 1.2- 0.3+
971005 700 0.2+ 1.0+ 971028 402 0.9+ 0.7+ 971130 360 0.2- 0.4-
971005 700 0.2+ 0.2+ 971029 566 0.3+ 0.1+ 971130 360 0.6- 0.3-
971005 046 0.0 0.2- 971029 566 0.2+ 0.2+ 971130 360 0.5- 0.5-
971005 046 0.0 0.1+ 971029 566 0.4+ 0.4+ 971224 360 0.7- 0.4+
971005 046 0.1+ 0.2+ 971029 426 0.3- 0.2+ 971224 360 0.4- 0.3+
971006 360 0.3+ 0.2+ 971029 426 0.1- 0.1- 971224 360 0.5- 0.6+
971006 360 0.1+ 0.4+ 971029 402 0.3+ 0.6- 971225 566 1.6- 1.2+
971006 360 0.1+ 0.2+ 971029 402 0.4+ 0.5- 971225 566 0.9- 0.4+
971006 046 0.4+ 0.3+ 971029 402 0.3+ 0.0 971225 566 0.4- 0.7+
971006 046 0.3+ 0.3+ 971029 426 0.2+ 0.1+ 990514 693 0.6+ 0.8+
971006 046 0.2+ 0.2+ 971029 426 0.1- 0.1+ 990514 693 1.1+ 0.7+
971017 046 0.3+ 0.4+ 971029 360 0.2+ 0.4- 990514 693 0.2+ 1.2+
971017 046 0.2+ 0.8+ 971029 360 0.1+ 0.4-
Ephemeris:
1997 TD a,e,i = 2.25, 0.47, 13 q = 1.1974
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 05 22 08 59.77 +14 59.8 3.463 3.304 72.6 17.0 22.6
1999 06 01 09 08.14 +14 43.6 3.602 3.304 65.0 16.1 22.7
1999 06 11 09 17.41 +14 20.2 3.731 3.302 57.7 15.1 22.7
1999 06 21 09 27.43 +13 50.2 3.849 3.298 50.6 13.8 22.7
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-K42
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