MPEC 2021-C247 : 2020 PC7
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M.P.E.C. 2021-C247 Issued 2021 February 12, 15:07 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 PC7
Revision to MPEC 2020-Q192
Additional Observations:
K20P07C C2015 02 02.56759011 04 58.865-20 59 36.57 21.22GVEC247F51
K20P07C C2015 03 27.30995609 42 39.269-26 06 10.65 21.83GVEC247F51
K20P07C C2015 03 27.32133809 42 38.328-26 06 02.09 21.97GVEC247F51
K20P07C C2015 03 27.33270409 42 37.430-26 05 54.11 22.29GVEC247F51
K20P07C C2015 03 27.34408409 42 36.496-26 05 45.80 21.62GVEC247F51
Observer details:
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
150202 F51 28.6+ 10.1+ 150327 F51 31.9+ 28.8+ E2020-V01 -0.00 days
Orbital elements:
2020 PC7 Earth MOID = 0.1113 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 113.51082 (2000.0) P Q
n 0.60757145 Peri. 8.29490 +0.11534351 +0.97150092
a 1.3806104 Node 268.50901 -0.92283352 +0.02767077
e 0.1829783 Incl. 11.95535 -0.36752438 +0.23541515
P 1.62 H 21.6 G 0.15 U 2
Residuals in seconds of arc
150202 F51 0.4+ 0.1- 200824 033 0.3- 0.1- 200927 V06 0.1- 0.1-
150327 F51 0.1+ 0.0 200824 033 0.4- 0.3- 201006 G96 0.4- 0.4+
150327 F51 0.2- 0.3+ 200825 H21 0.2- 0.1- 201006 G96 0.0 0.2-
150327 F51 0.0 0.1- 200825 H21 0.2- 0.1+ 201006 G96 0.0 0.1-
150327 F51 0.2- 0.1- 200825 H21 0.1- 0.3- 201008 H21 0.4- 0.2-
200808 G96 0.1- 0.3+ 200825 H21 0.1+ 0.0 201008 H21 0.0 0.3+
200808 G96 0.2- 0.3- 200910 I52 0.7+ 0.1+ 201009 F51 0.1+ 0.0
200808 G96 0.7- 0.1- 200910 I52 0.2+ 0.4- 201009 F51 0.1- 0.1-
200824 G96 0.0 0.1+ 200910 I52 0.1+ 0.1- 201009 F51 0.0 0.1-
200824 G96 0.7+ 0.1- 200916 G96 0.9- 0.7+ 201009 F51 0.1- 0.2+
200824 G96 0.0 0.1+ 200916 G96 0.0 0.3- 201012 H21 0.2+ 0.3-
200824 G96 0.6+ 0.3+ 200916 G96 0.2+ 0.1- 201012 H21 0.6+ 0.3-
200824 V06 0.1+ 0.2+ 200916 G96 0.4+ 0.4+ 201012 H21 0.6+ 0.2-
200824 V06 0.2+ 0.0 200927 V06 0.2- 0.0 201016 H21 0.1+ 0.4-
200824 V06 0.2+ 0.1+ 200927 V06 0.1- 0.3+ 201016 H21 0.1+ 0.2-
200824 033 0.2- 0.2- 200927 V06 0.3- 0.2+ 201016 H21 0.1- 0.4+
Ephemeris:
2020 PC7 a,e,i = 1.38, 0.18, 12 q = 1.1280
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 01 13 01 10 20.6 +15 07 29 1.2308 1.5655 89.3 38.9 24.6
...
2021 01 28 01 44 02.6 +15 58 50 1.3915 1.5876 81.9 37.9 24.8
...
2021 02 05 02 02 18.1 +16 32 27 1.4768 1.5977 78.1 37.1 25.0
...
2021 02 11 02 16 08.0 +16 59 06 1.5401 1.6045 75.3 36.5 25.0
2021 02 12 02 18 27.0 +17 03 37 1.5506 1.6055 74.8 36.4 25.1
2021 02 13 02 20 46.3 +17 08 08 1.5610 1.6066 74.4 36.3 25.1
...
2021 02 19 02 34 46.0 +17 35 22 1.6232 1.6124 71.6 35.6 25.1
...
2021 02 27 02 53 36.7 +18 11 04 1.7042 1.6191 68.0 34.6 25.2
...
2021 03 14 03 29 30.6 +19 11 51 1.8492 1.6281 61.5 32.4 25.4
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-C247
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