MPEC 2001-L06 : 1999 TY16
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M.P.E.C. 2001-L06 Issued 2001 June 3, 18:27 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 TY16
Revision to MPEC 1999-U07
Observations:
J99T16Y IC2001 05 18.55641 14 55 35.09 -37 30 16.6 474
J99T16Y C2001 05 18.55919 14 55 34.79 -37 30 15.6 19.6 R 474
J99T16Y C2001 05 18.56203 14 55 34.57 -37 30 11.3 19.3 R 474
J99T16Y C2001 05 18.57118 14 55 33.60 -37 30 02.3 19.3 R 474
J99T16Y 1C2001 05 31.62306 14 37 54.60 -33 13 49.4 413
J99T16Y 1C2001 05 31.62568 14 37 54.37 -33 13 45.7 413
J99T16Y 1C2001 06 01.70781 14 36 39.59 -32 51 51.6 21.3 R 413
J99T16Y 1C2001 06 01.71104 14 36 39.38 -32 51 47.7 413
J99T16Y 1C2001 06 01.71424 14 36 39.15 -32 51 44.4 413
J99T16Y 1C2001 06 02.55296 14 35 42.94 -32 34 48.4 413
Observer details:
413 Siding Spring. Observer R. H. McNaught. 1.0-m f/8 reflector + CCD.
474 Mount John Observatory, Lake Tekapo. Observer A. C. Gilmore.
1.0-m f/7.7 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
010518 474 28.2- 26.1- 010602 413 26.0- 30.3- MPC 39551 +0.12 day
Orbital elements:
1999 TY16
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5 Spahr
M 181.78000 (2000.0) P Q
n 0.32428145 Peri. 156.84934 +0.60319807 -0.21574180
a 2.0982375 Node 241.97829 +0.52507116 +0.83208871
e 0.4051955 Incl. 60.43884 +0.60037686 -0.51096365
P 3.04 H 16.0 G 0.15 U 2
Residuals in seconds of arc
991013 704 0.9- 0.7+ 991016 704 0.8- 0.2- 991030 118 0.1- 0.8+
991013 704 0.4+ 0.6- 991016 704 0.6- 0.4+ 991030 118 0.4+ 0.4+
991013 704 0.2- 0.1+ 991016 704 1.9- 1.2+ 991101 118 0.7+ 0.2-
991013 704 0.8- 0.0 991016 704 0.3- 0.1- 991101 118 0.6+ 0.3+
991015 557 0.2+ 0.4- 991016 658 0.1+ 0.1+ 991101 118 0.8+ 0.2+
991015 557 0.2+ 0.3- 991016 658 0.2+ 0.3+ 991203 428 1.1- 0.5-
991015 557 0.1+ 0.2- 991016 704 0.6- 0.6+ 991218 422 0.3+ 0.5+
991015 557 0.1+ 0.2- 991016 658 0.2- 0.2+ 991218 422 0.3+ 0.0
991015 704 0.2+ 0.5- 991016 711 0.4- 0.1+ 991218 422 0.3- 0.8-
991015 704 0.3+ 0.0 991016 711 0.3- 0.4- 991218 428 0.0 0.9+
991015 704 0.1+ 0.7- 991016 711 1.6+ 1.7+ 000103 422 1.3- 1.1-
991015 704 0.8- 0.2- 991016 413 0.0 0.5+ 000115 422 0.4- 0.0
991015 704 1.1- 0.5+ 991016 413 0.1- 0.1- 000115 422 0.4+ 0.1+
991015 704 1.7- 1.9- 991017 118 0.4- 0.7+ 000304 474 0.2+ 0.4+
991015 704 0.8+ 0.8- 991017 118 0.4- 0.8+ 000304 474 0.4- 0.3+
991015 704 0.3- 0.1- 991018 118 0.4+ 0.1- 000304 474 0.6+ 0.6+
991015 704 0.3+ 0.7- 991018 118 0.8+ 0.5- 010518 474 0.1- 1.6+
991015 711 0.1+ 0.1+ 991018 118 0.2+ 0.3- 010518 474 0.6- 0.5-
991015 711 0.4- 0.2+ 991018 658 0.1+ 0.2+ 010518 474 0.1- 0.6+
991015 711 0.3- 0.1+ 991018 658 0.4+ 0.3- 010518 474 1.6- 0.7-
991016 046 0.1- 0.2+ 991018 658 0.6+ 0.3+ 010531 413 0.3+ 0.6-
991016 046 0.2+ 0.5+ 991020 402 0.3+ 0.9- 010531 413 0.3- 0.1-
991016 046 0.2+ 0.2+ 991020 402 1.1+ 0.3+ 010601 413 0.5+ 0.3+
991016 611 0.5- 0.2+ 991020 402 0.3+ 0.2- 010601 413 0.7+ 0.3+
991016 046 0.3- 0.8+ 991021 704 1.0+ 1.0- 010601 413 0.5+ 0.4-
991016 046 0.5- 1.1+ 991021 704 0.2+ 0.1- 010602 413 0.7+ 0.6-
991016 611 0.4- 0.6- 991021 704 0.9+ 0.2-
991016 611 0.1- 0.9- 991021 704 1.4+ 1.0-
Ephemeris:
1999 TY16 a,e,i = 2.10, 0.41, 60 q = 1.2480
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 05 21 14 51.96 -36 44.3 1.960 2.927 159.0 7.1 20.3
2001 05 31 14 38.65 -33 26.4 1.982 2.919 152.5 9.2 20.4
2001 06 10 14 28.37 -30 05.4 2.036 2.909 142.7 12.2 20.6
2001 06 20 14 21.37 -26 54.9 2.118 2.898 132.0 15.1 20.8
2001 06 30 14 17.58 -24 04.1 2.223 2.885 121.4 17.5 21.0
2001 07 10 14 16.68 -21 37.6 2.344 2.872 111.1 19.3 21.1
2001 07 20 14 18.29 -19 36.1 2.476 2.856 101.4 20.4 21.3
2001 07 30 14 22.05 -17 57.9 2.613 2.840 92.2 20.9 21.4
2001 08 09 14 27.63 -16 40.0 2.750 2.821 83.5 20.9 21.5
2001 08 19 14 34.75 -15 39.2 2.884 2.802 75.2 20.4 21.6
2001 08 29 14 43.18 -14 52.2 3.011 2.781 67.2 19.6 21.6
Timothy B. Spahr (C) Copyright 2001 MPC M.P.E.C. 2001-L06
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