MPEC 2023-M04 : 2020 FM4
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M.P.E.C. 2023-M04 Issued 2023 June 16, 11:32 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 FM4
Revision to MPEC 2020-F131
Additional Observations:
K20F04M C2023 06 15.36860814 32 06.401+09 16 50.67 21.79wXEM004F51
K20F04M C2023 06 15.38149414 32 10.821+09 16 20.99 21.40wXEM004F51
K20F04M C2023 06 15.39859314 32 16.750+09 15 41.30 21.32wXEM004F51
K20F04M |C2023 06 16.02946 14 36 03.88 +08 52 08.6 21.5 GVEM004807
K20F04M |C2023 06 16.03871 14 36 07.01 +08 51 47.6 21.3 GVEM004807
K20F04M |C2023 06 16.04795 14 36 10.15 +08 51 26.3 21.5 GVEM004807
K20F04M C2023 06 16.14698414 36 45.192+08 46 55.04 22.0 GVEM004H01
K20F04M C2023 06 16.15065014 36 46.433+08 46 46.53 21.5 GVEM004H01
K20F04M C2023 06 16.16494314 36 51.261+08 46 13.97 21.4 GVEM004H01
K20F04M C2023 06 16.17237114 36 53.791+08 45 56.83 21.0 GVEM004H01
Observer details:
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes, L.
Horn. 1.00-m f/10.0 astrograph + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Bulger, J.
Fairlamb, H. Gao, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, Y.
Ramanjooloo, A. Schultz, I. Smith, R. Wainscoat, R. Weryk. 1.8-m Ritchey-
Chretien + CCD.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
230615 F51 10- 0- 230616 H01 10- 0- MPO740927 +0.00 days
Orbital elements:
2020 FM4 Earth MOID = 0.0715 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 336.05565 (2000.0) P Q
n 0.32264698 Peri. 28.62941 -0.78005442 +0.62556663
a 2.1053177 Node 190.12770 -0.58769218 -0.73987754
e 0.4925641 Incl. 4.39388 -0.21478594 -0.24748254
P 3.05 H 23.37 G 0.15 U 0
Residuals in seconds of arc
200321 F51 0.3- 0.1+ 200325 I52 0.5+ 0.4+ 230615 F51 0.6+ 0.0
200321 F51 0.1+ 0.0 200401 033 0.3+ 0.1- 230616 807 0.0 0.1-
200321 F51 0.0 0.2+ 200401 033 0.2- 0.1- 230616 807 0.1- 0.0
200321 F51 0.5+ 0.1- 200401 033 0.7- 0.0 230616 807 0.0 0.1-
200322 568 0.0 0.0 200402 F51 0.0 0.1+ 230616 H01 0.1+ 0.1+
200322 568 0.0 0.0 200402 F51 0.1+ 0.1+ 230616 H01 0.1+ 0.0
200324 568 0.0 0.0 200402 F51 (0.9+ 0.4+) 230616 H01 0.0 0.2+
200324 568 0.0 0.0 230615 F51 0.3+ 0.0 230616 H01 0.2+ 0.0
200325 I52 0.5- 0.5- 230615 F51 0.1+ 0.1+
Ephemeris:
2020 FM4 a,e,i = 2.11, 0.49, 4 q = 1.0683
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 05 17 11 08 53.5 +21 38 10 0.1880 1.0713 103.7 66.5 22.2
...
2023 06 01 12 54 15.3 +17 39 03 0.1803 1.0980 113.4 58.0 21.9
...
2023 06 09 13 51 19.0 +13 17 09 0.1902 1.1226 120.2 51.4 21.9
...
2023 06 15 14 29 54.0 +09 31 08 0.2049 1.1454 124.9 46.7 22.0
2023 06 16 14 35 52.5 +08 52 52 0.2080 1.1495 125.6 45.9 22.0
2023 06 17 14 41 42.9 +08 14 41 0.2113 1.1536 126.3 45.2 22.0
...
2023 06 23 15 13 54.9 +04 31 22 0.2344 1.1805 129.9 41.3 22.2
...
2023 07 01 15 49 51.4 +00 02 29 0.2740 1.2205 133.1 37.4 22.5
...
2023 07 16 16 41 01.9 -06 30 49 0.3728 1.3052 134.5 33.7 23.2
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-M04
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