MPEC 2020-Y148 : 2020 YU4
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M.P.E.C. 2020-Y148 Issued 2020 December 28, 15:38 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 YU4
Observations:
K20Y04U* C2020 12 24.59615508 02 16.762+10 19 08.99 22.35wUEY148F51
K20Y04U C2020 12 24.60674108 02 16.799+10 18 33.82 22.40wUEY148F51
K20Y04U C2020 12 24.61736508 02 16.848+10 17 58.22 22.43wUEY148F51
K20Y04U C2020 12 24.62794608 02 16.912+10 17 23.14 22.15wUEY148F51
K20Y04U |C2020 12 25.23112 08 02 27.85 +09 44 38.9 21.8 GVEY148807
K20Y04U |C2020 12 25.23707 08 02 27.91 +09 44 19.2 21.8 GVEY148807
K20Y04U |C2020 12 25.24301 08 02 27.85 +09 43 59.7 21.7 GVEY148807
K20Y04U |C2020 12 26.20068 08 02 40.22 +08 50 57.1 22.4 GVEY148807
K20Y04U |C2020 12 26.20889 08 02 40.22 +08 50 30.1 22.7 GVEY148807
K20Y04U |C2020 12 26.21710 08 02 40.19 +08 50 02.4 22.5 GVEY148807
K20Y04U KC2020 12 26.51830 08 02 41.18 +08 32 40.5 oEY148291
K20Y04U KC2020 12 26.52653 08 02 41.17 +08 32 13.5 oEY148291
K20Y04U KC2020 12 26.53477 08 02 41.17 +08 31 45.8 oEY148291
K20Y04U |C2020 12 28.24335 08 02 55.99 +06 57 07.7 21.7 GVEY148807
K20Y04U |C2020 12 28.24965 08 02 55.94 +06 56 46.7 21.7 GVEY148807
K20Y04U |C2020 12 28.25568 08 02 55.88 +06 56 26.6 21.5 GVEY148807
Observer details:
291 LPL/Spacewatch II. Observer R. A. Mastaler. 1.8-m f/2.7 reflector + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
1.00-m f/10.0 astrograph + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, M.
Willman. Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J.
Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
Orbital elements:
2020 YU4 Earth MOID = 0.2271 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 348.99051 (2000.0) P Q
n 0.43538094 Peri. 205.39614 -0.39297407 -0.89750600
a 1.7240761 Node 268.28553 +0.87414124 -0.29706482
e 0.3047624 Incl. 11.55014 +0.28539179 -0.32593782
P 2.26 H 23.7 G 0.15 U 7
Residuals in seconds of arc
201224 F51 0.0 0.1+ 201225 807 0.1- 0.1+ 201226 291 0.5- 0.2+
201224 F51 0.1- 0.1+ 201226 807 0.2- 0.0 201228 807 0.2+ 0.1-
201224 F51 0.1- 0.2- 201226 807 0.1- 0.2+ 201228 807 0.2+ 0.0
201224 F51 0.1+ 0.1- 201226 807 0.4- 0.2- 201228 807 0.0 0.1+
201225 807 0.1+ 0.0 201226 291 0.2+ 0.4-
201225 807 0.8+ 0.0 201226 291 0.2- 0.2+
Ephemeris:
2020 YU4 a,e,i = 1.72, 0.30, 12 q = 1.1986
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 11 28 07 35 16.0 +29 55 23 0.3497 1.2571 134.6 33.9 23.3
...
2020 12 13 07 55 32.1 +20 14 15 0.2827 1.2250 144.2 28.0 22.6
...
2020 12 21 08 01 00.5 +13 33 59 0.2584 1.2127 149.0 24.7 22.3
...
2020 12 27 08 02 47.2 +08 06 11 0.2462 1.2059 151.8 22.7 22.1
2020 12 28 08 02 54.4 +07 10 24 0.2447 1.2050 152.1 22.5 22.1
2020 12 29 08 02 58.8 +06 14 31 0.2433 1.2042 152.4 22.3 22.1
...
2021 01 04 08 02 30.9 +00 42 01 0.2380 1.2003 153.1 21.8 22.0
...
2021 01 12 08 00 01.6 -06 08 15 0.2388 1.1987 151.4 23.1 22.1
...
2021 01 27 07 54 14.0 -15 24 10 0.2607 1.2063 144.4 28.3 22.4
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-Y148
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