MPEC 2021-J09 : 2020 TF
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M.P.E.C. 2021-J09 Issued 2021 May 1, 14:04 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
2020 TF
Revision to MPEC 2020-T18
Additional Observations:
K20T00F C2013 07 16.46905717 58 37.973+30 04 28.59 22.03GVEJ009F51
K20T00F C2013 07 16.48090417 58 36.727+30 04 17.66 21.66GVEJ009F51
K20T00F C2013 07 17.29157517 57 20.357+29 51 52.68 22.23GVEJ009F51
K20T00F C2013 07 17.30832917 57 18.661+29 51 37.38 22.78GVEJ009F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith. 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
130716 F51 21.4+ 6.0+ 130717 F51 21.2+ 6.5+ MPO600171 +0.00 days
Orbital elements:
2020 TF PHA, Earth MOID = 0.0025 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 332.45592 (2000.0) P Q
n 0.86779093 Peri. 271.32097 -0.63975431 -0.73730395
a 1.0885774 Node 221.24856 +0.76815214 -0.62279450
e 0.3028668 Incl. 19.21735 -0.02562640 -0.26174396
P 1.14 H 21.7 G 0.15 U 3
Residuals in seconds of arc
130716 F51 0.0 0.1- 201009 I52 0.3- 0.2- 201030 691 0.5+ 1.0+
130716 F51 0.2- 0.0 201009 I52 0.0 0.9- 201030 I52 0.1+ 0.1+
130717 F51 0.1+ 0.1+ 201009 I52 0.1- 0.2- 201030 I52 0.3- 0.2-
130717 F51 0.1+ 0.2+ 201010 I52 0.3+ 0.1+ 201030 I52 0.0 0.1+
201005 G96 0.2+ 0.3+ 201010 I52 0.0 0.1- 201031 691 0.2+ 0.1-
201005 G96 0.2- 0.0 201011 G96 0.1- 0.2+ 201031 691 0.3+ 0.1+
201005 G96 0.3+ 0.3+ 201011 G96 0.2- 0.1- 201031 691 0.0 0.2+
201005 I52 0.4- 0.6+ 201011 G96 0.0 0.0 201102 H36 0.5+ 0.3-
201005 I52 0.2- 0.6- 201011 G96 0.1+ 0.0 201102 807 0.1- 0.8-
201005 I52 0.7- 0.3- 201011 G96 0.0 0.1- 201102 807 0.1+ 0.6-
201005 B49 1.9+ 0.2+ 201011 G96 0.3+ 0.2+ 201102 H36 0.1+ 1.2-
201005 B49 0.5+ 0.3+ 201011 G96 0.0 0.1+ 201102 807 0.4+ 0.3-
201005 L01 0.2+ 0.8- 201011 I52 0.2- 0.1- 201102 H36 0.2- 0.2+
201005 L01 0.2+ 0.3+ 201011 I52 0.0 0.0 201103 I52 0.3+ 0.3+
201005 L01 0.2+ 0.3+ 201011 I52 0.0 0.1- 201103 I52 0.3+ 0.3+
201005 L01 0.0 0.1- 201011 I52 0.2- 0.1- 201104 691 0.6- 0.0
201006 H21 0.2+ 0.1- 201012 I52 0.2- 0.1+ 201104 691 0.4- 0.8+
201006 H36 0.1- 0.1- 201012 I52 0.0 0.1+ 201104 691 0.1- 0.1+
201006 H21 0.0 0.1+ 201012 I52 0.3+ 0.1+ 201104 I52 0.9- 0.0
201006 H21 0.0 0.3- 201012 I52 0.5- 0.0 201104 I52 0.2- 0.0
201006 H36 0.0 1.1- 201015 I52 0.1+ 0.0 201105 691 0.6- 0.5-
201006 I52 0.1- 0.1- 201015 I52 0.2+ 0.1+ 201105 691 0.4- 0.7+
201006 I52 0.2- 0.4- 201015 I52 0.2- 0.3- 201105 691 0.6- 0.1+
201006 I52 0.2- 0.3- 201015 I52 0.0 0.1+ 201106 246 0.2- 0.4+
201006 J95 0.5+ 0.0 201017 I52 0.2- 0.1- 201106 246 0.1- 0.7+
201006 J95 0.3+ 0.0 201017 I52 0.0 0.1+ 201106 246 0.8- 1.2+
201007 J95 0.0 0.1- 201017 I52 0.0 0.1- 201110 807 0.2+ 0.4-
201007 J95 0.4- 0.4+ 201020 I52 0.0 0.2- 201110 807 0.1+ 0.0
201007 H21 0.3+ 0.0 201020 I52 0.2- 0.3- 201110 807 0.7+ 0.5-
201007 H21 0.1- 0.1+ 201020 I52 0.0 0.3+ 201112 691 0.0 0.1+
201007 H21 0.0 0.0 201020 I52 0.7+ 0.3- 201112 691 0.2+ 0.4-
201007 U55 0.0 0.2+ 201023 I52 0.5+ 0.2- 201112 691 0.2- 0.4+
201007 U55 0.3- 0.2+ 201023 I52 0.2+ 0.2+ 201113 291 0.3+ 0.4+
201007 I52 0.2- 0.2+ 201023 I52 0.1+ 0.1- 201113 291 0.0 0.1+
201007 I52 0.0 0.1- 201023 I52 0.2+ 0.1- 201113 291 0.2+ 0.4-
201007 I52 0.1- 0.1+ 201029 I52 0.8- 0.0 201124 807 0.1- 0.0
201007 I52 0.2+ 0.0 201029 I52 0.4- 0.1+ 201124 807 0.3+ 0.1+
201008 I52 0.4- 0.4- 201029 I52 0.0 0.2- 201124 807 0.5- 0.5-
201008 I52 0.5- 0.5- 201030 691 0.0 0.7+ 210429 695 0.4- 0.1+
201008 I52 0.1- 0.0 201030 691 0.1- 0.0 210429 695 1.4- 0.3+
Ephemeris:
2020 TF a,e,i = 1.09, 0.30, 19 q = 0.7589
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 01 19 57 02.4 -15 45 34 0.6880 1.0353 73.1 67.4 23.3
...
2021 04 16 20 23 03.1 -07 12 07 0.6856 1.1110 79.8 62.8 23.3
...
2021 04 24 20 34 33.2 -02 37 37 0.6784 1.1491 83.6 60.4 23.3
...
2021 04 30 20 42 00.5 +00 48 35 0.6707 1.1764 86.6 58.7 23.3
2021 05 01 20 43 08.9 +01 22 59 0.6693 1.1809 87.1 58.4 23.3
2021 05 02 20 44 15.4 +01 57 23 0.6678 1.1853 87.6 58.2 23.3
...
2021 05 08 20 50 13.8 +05 23 48 0.6581 1.2109 90.6 56.5 23.3
...
2021 05 16 20 56 13.1 +09 58 11 0.6433 1.2431 94.8 54.1 23.2
...
2021 05 31 21 00 18.5 +18 21 21 0.6129 1.2965 102.9 49.7 23.1
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-J09
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