MPEC 2020-Y150 : 2020 YW4
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M.P.E.C. 2020-Y150 Issued 2020 December 28, 17:14 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 YW4
Observations:
K20Y04W* C2020 12 25.60258809 17 04.843-12 34 23.56 21.61wUEY150F51
K20Y04W C2020 12 25.61458809 17 04.606-12 34 06.08 21.89wUEY150F51
K20Y04W C2020 12 25.62657209 17 04.371-12 33 48.75 21.69wUEY150F51
K20Y04W C2020 12 25.63858709 17 04.134-12 33 31.15 21.78wUEY150F51
K20Y04W |C2020 12 26.26737 09 16 54.49 -12 18 00.5 21.4 GVEY150807
K20Y04W |C2020 12 26.27559 09 16 54.31 -12 17 48.4 21.3 GVEY150807
K20Y04W |C2020 12 26.28380 09 16 54.14 -12 17 36.3 21.4 GVEY150807
K20Y04W KC2020 12 26.46061 09 16 50.74 -12 13 26.9 oEY150291
K20Y04W KC2020 12 26.47259 09 16 50.49 -12 13 09.1 oEY150291
K20Y04W |C2020 12 28.31963 09 16 13.05 -11 25 57.6 21.3 GVEY150807
K20Y04W |C2020 12 28.32591 09 16 12.86 -11 25 47.9 21.2 GVEY150807
K20Y04W |C2020 12 28.33193 09 16 12.70 -11 25 38.3 21.4 GVEY150807
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 YW4 Earth MOID = 0.5198 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Alexandersen
M 16.62104 (2000.0) P Q
n 0.23597069 Peri. 269.85939 +0.57962800 -0.75983207
a 2.5935662 Node 139.57471 +0.80143711 +0.59691522
e 0.5288525 Incl. 27.00328 -0.14741079 +0.25757997
P 4.18 H 20.24 G 0.15 U 8
Residuals in seconds of arc
201225 F51 0.1- 0.0+ 201226 807 0.0+ 0.0+ 201226 291 0.1- 0.1-
201225 F51 0.0- 0.0+ 201226 807 0.0- 0.0+ 201228 807 0.1+ 0.0+
201225 F51 0.0+ 0.1- 201226 807 0.1+ 0.0+ 201228 807 0.1- 0.1-
201225 F51 0.1+ 0.0+ 201226 291 0.3- 0.1- 201228 807 0.0- 0.1+
Ephemeris:
2020 YW4 a,e,i = 2.59, 0.53, 27 q = 1.2220
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 11 28 09 05 25.1 -19 34 37 0.7886 1.3493 98.3 46.3 22.1
...
2020 12 13 09 16 24.7 -16 42 59 0.7449 1.4243 110.1 40.5 22.0
...
2020 12 21 09 17 45.0 -14 17 49 0.7216 1.4686 118.1 36.2 21.8
...
2020 12 27 09 16 40.9 -11 59 52 0.7066 1.5035 124.9 32.5 21.7
2020 12 28 09 16 20.3 -11 34 21 0.7044 1.5095 126.1 31.8 21.7
2020 12 29 09 15 56.9 -11 08 07 0.7023 1.5154 127.3 31.1 21.7
...
2021 01 04 09 12 41.2 -08 15 53 0.6926 1.5518 134.9 26.7 21.6
...
2021 01 12 09 06 11.6 -03 50 10 0.6893 1.6017 145.9 20.1 21.5
...
2021 01 27 08 50 24.9 +05 29 02 0.7250 1.6982 166.6 7.7 21.2
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-Y150
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