MPEC 2020-V134 : 2017 TC4
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M.P.E.C. 2020-V134 Issued 2020 November 13, 17:56 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Division F 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 https://www.minorplanetcenter.net/ ISSN 1523-6714
2017 TC4
Revision to MPEC 2017-T79
Additional Observations:
K17T04C C2020 10 18.60326308 37 01.485+25 10 31.38 22.75GVEV134F51
K17T04C C2020 10 19.60447108 40 58.991+24 41 16.60 21.89GVEV134F51
K17T04C C2020 10 19.63278708 41 05.583+24 40 27.33 23.04GVEV134F51
K17T04C KC2020 11 13.49397 10 07 17.85 +10 50 57.0 22.9 RoEV134291
K17T04C KC2020 11 13.51839 10 07 22.21 +10 50 04.6 oEV134291
Observer details:
291 LPL/Spacewatch II. Observer J. V. Scotti. 1.8-m f/2.7 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
201018 F51 8.6+ 7.4+ 201113 291 8.0+ 6.6+ MPO438038 +0.00 days
Orbital elements:
2017 TC4 Earth MOID = 0.1717 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 13.10787 (2000.0) P Q
n 0.34593794 Peri. 178.03131 +0.03244340 -0.97804643
a 2.0097278 Node 270.06732 +0.91416324 +0.11229688
e 0.4250973 Incl. 11.87904 +0.40404579 -0.17554083
P 2.85 H 20.6 G 0.15 U 1
Residuals in seconds of arc
171010 G96 0.1+ 0.8- 171112 G96 0.2+ 0.0 171218 204 0.1- 0.0
171010 G96 0.0 0.2- 171112 G96 0.1+ 0.0 171226 G96 0.2+ 0.2-
171010 G96 0.1+ 0.3+ 171118 F51 0.1+ 0.1+ 171226 G96 0.1+ 0.0
171010 G96 0.0 0.3+ 171118 F51 0.1+ 0.1+ 171226 G96 0.1+ 0.0
171010 G96 0.0 0.3- 171118 F51 0.1+ 0.1- 171226 G96 0.1+ 0.2-
171010 G96 0.2- 0.7- 171118 F51 0.1+ 0.0 171227 H21 0.2+ 0.2-
171010 G96 0.2+ 0.6+ 171118 F51 0.1+ 0.0 171227 H21 0.0 0.1-
171010 G96 0.2- 0.2- 171118 F51 0.1+ 0.1+ 171227 H21 0.3+ 0.2-
171013 G96 0.1- 0.0 171118 F51 0.1+ 0.0 180113 703 1.4- 0.2+
171013 G96 0.1+ 0.3+ 171201 H21 0.4- 0.0 180113 703 0.5- 0.6+
171013 G96 0.1+ 0.1+ 171201 H21 0.4- 0.1- 180113 703 1.1+ 0.5-
171013 G96 0.2+ 0.0 171201 H21 0.1- 0.0 180113 703 0.1- 0.4-
171013 G96 0.0 0.2+ 171202 H21 0.2- 0.1+ 180113 F51 0.1- 0.1+
171013 G96 0.0 0.3+ 171202 H21 0.3- 0.2- 180113 F51 0.0 0.0
171013 G96 0.3- 0.1+ 171202 H21 0.1- 0.1- 180113 F51 0.2- 0.0
171013 G96 0.1- 0.2+ 171202 H21 0.1- 0.0 180113 F51 0.1+ 0.0
171014 G96 0.2+ 0.1+ 171208 691 0.1+ 0.1+ 180114 G96 0.6+ 0.6-
171014 G96 0.6- 0.2+ 171208 691 0.1- 0.1- 180114 G96 0.2+ 0.4-
171014 G96 0.4+ 0.6+ 171208 691 0.1- 0.1+ 180114 G96 0.7- 0.4-
171014 G96 0.2+ 0.4+ 171211 H45 0.0 0.0 180114 G96 0.7+ 0.5-
171014 587 0.4+ 0.2- 171211 H45 0.5- 0.8- 180115 G96 0.5- 0.1+
171014 587 0.4- 0.8- 171211 H45 0.2- 0.8+ 180115 G96 0.4+ 0.4+
171014 587 0.9- 0.3- 171211 H45 0.0 0.2- 180115 G96 0.3+ 0.2+
171019 I52 0.3- 0.2- 171211 H45 0.4+ 0.4- 180203 807 0.1- 0.2+
171019 I52 0.1- 0.3- 171211 H45 0.0 0.3+ 180203 807 0.3- 0.2+
171019 I52 0.1- 0.0 171213 G96 0.1+ 0.0 180203 807 0.5- 0.3+
171020 I52 0.4- 0.7- 171213 G96 0.2- 0.2+ 180203 807 0.4+ 0.2+
171020 I52 0.1+ 0.1+ 171213 G96 0.2+ 0.2+ 180204 G96 0.1+ 0.2+
171020 I52 0.3- 0.1- 171213 G96 0.2+ 0.1+ 180204 G96 0.1+ 0.4-
171031 H21 0.3+ 0.3+ 171216 691 0.8- 0.2+ 180204 G96 0.3+ 0.2+
171031 H21 0.1- 0.4+ 171216 691 0.2- 0.3+ 180204 G96 0.6+ 0.3+
171031 H21 0.0 0.2- 171216 691 0.1- 0.2- 201113 291 0.0 0.5+
171112 G96 0.0 0.0 171218 204 0.1+ 0.0 201113 291 0.5+ 0.0
171112 G96 0.1+ 0.0 171218 204 0.1+ 0.4-
Ephemeris:
2017 TC4 a,e,i = 2.01, 0.43, 12 q = 1.1554
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 10 14 08 18 20.2 +27 18 38 0.8320 1.1868 80.3 56.0 22.6
...
2020 10 29 09 16 15.9 +19 46 49 0.7910 1.1612 80.3 57.5 22.5
...
2020 11 06 09 43 42.0 +15 15 02 0.7764 1.1559 80.7 57.8 22.4
...
2020 11 12 10 02 44.7 +11 44 04 0.7680 1.1558 81.2 57.8 22.4
2020 11 13 10 05 47.7 +11 08 35 0.7668 1.1561 81.3 57.8 22.4
2020 11 14 10 08 48.6 +10 33 04 0.7657 1.1565 81.4 57.8 22.4
...
2020 11 20 10 26 10.4 +06 59 39 0.7595 1.1610 82.1 57.5 22.4
...
2020 11 28 10 47 28.2 +02 17 50 0.7531 1.1720 83.6 56.8 22.4
...
2020 12 13 11 21 57.8 -06 06 37 0.7435 1.2074 87.5 54.5 22.4
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-V134
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