MPEC 2023-E55 : 2020 FZ4
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M.P.E.C. 2023-E55 Issued 2023 March 10, 14:04 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 FZ4
Revision to MPEC 2020-F139
Additional Observations:
K20F04Z C2014 03 24.45629913 52 08.828+05 53 22.62 21.17GVEE055F51
K20F04Z C2014 03 24.46978113 52 08.588+05 54 20.16 21.85GVEE055F51
K20F04Z C2014 03 24.49696913 52 08.098+05 56 16.16 21.44GVEE055F51
K20F04Z C2017 03 05.47565512 24 18.871-17 19 02.73 20.86GVEE055F51
K20F04Z C2017 03 05.48700012 24 19.235-17 18 07.85 21.14GVEE055F51
K20F04Z C2017 03 05.49835212 24 19.605-17 17 12.37 21.36GVEE055F51
K20F04Z C2017 03 05.50972212 24 19.988-17 16 16.90 20.90GVEE055F51
K20F04Z C2017 03 20.34276 12 32 20.184+04 10 46.80 21.1 wLEE055F51
K20F04Z C2017 03 20.35457 12 32 20.228+04 11 45.84 20.8 wLEE055F51
K20F04Z C2017 03 20.37829 12 32 20.284+04 13 45.13 21.0 wLEE055F51
K20F04Z C2020 04 16.41058411 37 32.608+28 09 37.18 22.44GVEE055F51
K20F04Z C2020 04 16.43460611 37 34.450+28 10 01.01 23.10GVEE055F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith, B. Gibson, T. Goggia, S. Kahale, M. Willman. Measurers
S. Chastel, J. Fairlamb, M. Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk,
K. Chambers, L. Denneau, H. Flewelling, E. Lilly, E. Magnier, C. Waters.
1.8-m Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
140324 F51 1.15- 0.22- 200416 F51 0.00- 0.00- E2020-FF8 +0.20 days
Orbital elements:
2020 FZ4 Earth MOID = 0.1749 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 23.57689 (2000.0) P Q
n 0.65431166 Peri. 304.64233 -0.52195461 -0.85281553
a 1.3140532 Node 176.68975 +0.84560386 -0.51987182
e 0.1526584 Incl. 16.50352 +0.11188160 -0.04938590
P 1.51 H 23.51 G 0.15 U 1
Residuals in seconds of arc
140324 F51 0.1+ 0.1- 200322 F51 0.1+ 0.2+ 200325 I52 0.6- 0.2-
140324 F51 0.1+ 0.1- 200322 F51 0.0 0.1+ 200325 033 0.3- 0.2-
140324 F51 0.1+ 0.0 200322 F51 0.1+ 0.1- 200325 033 0.3- 0.4-
170305 F51 0.0 0.2+ 200322 F51 0.0 0.1- 200325 033 0.1- 0.5-
170305 F51 0.1- 0.2- 200322 F51 0.2+ 0.1+ 200325 L01 0.1- 0.7+
170305 F51 0.1- 0.0 200325 G96 0.2+ 0.5- 200325 L01 0.7+ 0.8+
170305 F51 0.1+ 0.1- 200325 G96 0.4+ 0.0 200325 L01 1.0+ 0.1-
170320 F51 0.4- 0.3+ 200325 G96 0.1+ 0.0 200416 F51 0.1- 0.2-
170320 F51 0.3- 0.1+ 200325 G96 0.1+ 0.1+ 200416 F51 0.0 0.1+
170320 F51 0.1- 0.5+ 200325 I52 0.3- 0.2-
200322 F51 0.0 0.6- 200325 I52 0.4+ 0.1+
Ephemeris:
2020 FZ4 a,e,i = 1.31, 0.15, 17 q = 1.1135
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 02 08 08 24 12.2 -42 45 06 0.2294 1.1200 120.4 49.4 22.4
...
2023 02 23 08 42 21.6 -28 25 36 0.1944 1.1339 134.5 38.5 21.8
...
2023 03 03 08 56 10.5 -17 11 47 0.1864 1.1442 142.3 32.0 21.5
...
2023 03 09 09 08 17.9 -07 57 12 0.1881 1.1531 145.9 28.9 21.5
2023 03 10 09 10 26.5 -06 24 47 0.1890 1.1547 146.2 28.6 21.5
2023 03 11 09 12 37.0 -04 53 02 0.1902 1.1563 146.3 28.4 21.5
...
2023 03 17 09 26 14.8 +03 50 24 0.2016 1.1663 145.4 29.0 21.6
...
2023 03 25 09 45 36.7 +13 30 33 0.2274 1.1810 140.3 32.6 22.0
...
2023 04 09 10 23 30.2 +24 33 26 0.2995 1.2114 128.7 40.1 22.9
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-E55
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