MPEC 2023-F161 : 2020 OA3
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M.P.E.C. 2023-F161 Issued 2023 March 27, 14:09 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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 OA3
Revision to MPEC 2020-O84
Additional Observations:
K20O03A C2023 03 17.54675814 47 32.364+06 29 32.54 21.23wUEF161F51
K20O03A C2023 03 17.55872014 47 39.012+06 29 56.71 21.31wUEF161F51
K20O03A C2023 03 17.57067814 47 45.680+06 30 20.96 21.19wUEF161F51
K20O03A C2023 03 17.58265314 47 52.369+06 30 45.01 20.92wUEF161F51
K20O03A 0C2023 03 25.56766116 26 16.449+11 21 49.06 21.50GVEF161T12
K20O03A 0C2023 03 25.57118516 26 19.349+11 21 56.56 20.94GVEF161T12
K20O03A 0C2023 03 25.57488216 26 22.388+11 22 04.37 21.02GVEF161T12
K20O03A 0C2023 03 25.57814716 26 25.079+11 22 11.25 20.89GVEF161T12
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, I.
Smith. Measurers K. Chambers, S. Chastel, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
T12 University of Hawaii 88-inch telescope, Maunakea. Observer D. J. Tholen.
2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
230317 F51 28- 14- 230325 T12 23- 17- E2020-OF1 -2.32 days
Orbital elements:
2020 OA3 Earth MOID = 0.0390 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 309.59810 (2000.0) P Q
n 0.67076198 Peri. 91.57829 -0.49501627 +0.86829842
a 1.2924798 Node 148.68633 -0.81959236 -0.45443499
e 0.2688839 Incl. 3.51746 -0.28849135 -0.19886349
P 1.47 H 24.76 G 0.15 U 0
Residuals in seconds of arc
200718 F52 (0.7+ 0.5-) 200723 033 0.4- 0.5- 200728 654 0.1+ 0.1-
200718 F52 0.8- 0.4+ 200723 J04 0.1+ 0.1- 200729 I52 0.0 1.0+
200718 F52 0.3+ 0.2- 200723 J04 0.0 0.0 200729 I52 0.1- 0.4-
200718 F52 0.1- 0.2+ 200724 H21 0.3+ 0.1+ 230317 F51 0.0 0.1+
200723 F51 0.1+ 0.2- 200724 H21 0.1+ 0.1- 230317 F51 0.1- 0.0
200723 F51 0.1- 0.2+ 200724 H21 0.1- 0.0 230317 F51 0.0 0.1+
200723 F51 0.1- 0.1+ 200724 H36 0.3+ 0.1- 230317 F51 0.2+ 0.0
200723 033 0.2- 0.3- 200724 H36 0.3+ 0.5- 230325 T12 0.0 0.0
200723 033 0.1+ 0.3- 200724 H36 0.1+ 0.1+ 230325 T12 0.0 0.0
200723 033 0.6- 0.0 200728 654 0.0 0.3- 230325 T12 0.0 0.0
200723 033 0.1- 0.3- 200728 654 0.0 0.1- 230325 T12 0.0 0.0
Ephemeris:
2020 OA3 a,e,i = 1.29, 0.27, 4 q = 0.9450
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 02 25 12 47 56.1 +00 01 25 0.1807 1.1417 144.5 30.2 22.6
...
2023 03 12 14 00 46.5 +03 47 42 0.1096 1.0813 141.5 34.9 21.6
...
2023 03 20 15 13 38.1 +07 56 18 0.08351 1.0514 130.1 46.4 21.2
...
2023 03 26 16 32 31.8 +11 36 57 0.07287 1.0305 115.2 61.1 21.3
2023 03 27 16 47 21.2 +12 09 45 0.07205 1.0271 112.3 63.9 21.4
2023 03 28 17 02 26.6 +12 39 56 0.07151 1.0238 109.4 66.8 21.4
...
2023 04 03 18 32 06.9 +14 27 46 0.07429 1.0052 92.2 83.5 22.0
...
2023 04 11 20 06 41.2 +14 03 42 0.09077 0.9835 75.8 99.1 23.1
...
2023 04 26 21 45 19.9 +11 33 01 0.1402 0.9549 64.9 107.5 24.4
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-F161
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