MPEC 2021-K55 : 2020 MP2
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M.P.E.C. 2021-K55 Issued 2021 May 20, 14:00 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 MP2
Revision to MPEC 2020-M103
Additional Observations:
K20M02P C2021 05 11.51680718 23 26.867+20 32 53.31 22.29GVEK055T12
K20M02P C2021 05 11.52419918 23 26.250+20 33 00.60 22.61GVEK055T12
K20M02P C2021 05 11.53152518 23 25.638+20 33 07.59 22.39GVEK055T12
K20M02P C2021 05 11.53963618 23 24.958+20 33 15.42 22.41GVEK055T12
K20M02P C2021 05 11.54712618 23 24.329+20 33 22.68 22.62GVEK055T12
K20M02P C2021 05 13.53086918 20 46.430+21 04 14.43 22.63GVEK055T12
K20M02P C2021 05 13.53693618 20 45.859+21 04 19.98 22.56GVEK055T12
K20M02P C2021 05 13.54288518 20 45.299+21 04 25.40 22.56GVEK055T12
Observer details:
T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m). Observer D. J. Tholen.
2.24-m f/10.1 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
210511 T12 8.4+ 5.2+ 210513 T12 8.8+ 5.0+ E2020-MA6 -0.00 days
Orbital elements:
2020 MP2 Earth MOID = 0.0318 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 13.23474 (2000.0) P Q
n 1.01505391 Peri. 303.13125 +0.30558189 -0.93325969
a 0.9805656 Node 127.91651 +0.93374418 +0.25490409
e 0.2930823 Incl. 13.84644 +0.18639073 +0.25308152
P 0.97 H 22.2 G 0.15 U 3
Residuals in seconds of arc
200515 F51 0.2+ 0.2+ 200523 F51 0.0 0.2+ 200625 568 0.1- 0.1-
200515 F51 0.1- 0.2+ 200622 F51 0.1+ 0.0 200625 568 0.1- 0.0
200515 F51 0.1- 0.3- 200622 F51 0.1- 0.2- 200625 568 0.1- 0.0
200516 F51 0.2- 0.1+ 200622 F51 0.1+ 0.1+ 210511 T12 0.0 0.1-
200516 F51 0.1- 0.2+ 200622 F51 0.0 0.1- 210511 T12 0.0 0.1+
200516 F51 0.0 0.2- 200623 568 0.1- 0.0 210511 T12 0.0 0.0
200519 F52 0.1+ 0.0 200623 568 0.1- 0.0 210511 T12 0.0 0.0
200519 F52 0.0 0.0 200623 568 0.0 0.0 210511 T12 0.1- 0.0
200519 F52 0.1+ 0.1+ 200623 598 0.1+ 0.2+ 210513 T12 0.0 0.0
200523 F51 0.2+ 0.1- 200623 598 0.1+ 0.3+ 210513 T12 0.0 0.0
200523 F51 0.1+ 0.0 200623 598 0.0 0.3+ 210513 T12 0.0 0.0
Ephemeris:
2020 MP2 a,e,i = 0.98, 0.29, 14 q = 0.6932
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 04 20 18 32 34.1 +14 02 44 0.4783 1.2242 105.7 52.2 23.0
...
2021 05 05 18 29 44.8 +18 42 08 0.4254 1.2507 115.2 46.8 22.6
...
2021 05 13 18 21 30.6 +20 56 07 0.3976 1.2598 120.5 43.7 22.4
...
2021 05 19 18 11 43.1 +22 19 16 0.3780 1.2644 124.4 41.3 22.2
2021 05 20 18 09 46.5 +22 31 03 0.3749 1.2650 125.1 40.9 22.2
2021 05 21 18 07 44.7 +22 42 09 0.3718 1.2655 125.7 40.5 22.2
...
2021 05 27 17 53 45.0 +23 31 51 0.3549 1.2676 129.2 38.3 22.0
...
2021 06 04 17 30 45.7 +23 41 37 0.3366 1.2673 132.7 36.0 21.8
...
2021 06 19 16 41 23.6 +20 13 35 0.3201 1.2574 133.3 36.0 21.7
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-K55
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