MPEC 2020-Y153 : 2020 YY4
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M.P.E.C. 2020-Y153 Issued 2020 December 29, 15:08 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 YY4
Observations:
K20Y04Y* C2020 12 24.60153808 38 55.735+14 39 08.18 21.51wUEY153F51
K20Y04Y C2020 12 24.61215508 38 55.828+14 38 51.62 21.87wUEY153F51
K20Y04Y C2020 12 24.62276208 38 55.939+14 38 34.98 21.36wUEY153F51
K20Y04Y C2020 12 24.63335008 38 55.993+14 38 18.09 22.03wUEY153F51
K20Y04Y KC2020 12 25.32875 08 39 06.26 +14 19 59.5 oEY153291
K20Y04Y KC2020 12 25.34873 08 39 06.35 +14 19 29.1 21.2 RoEY153291
K20Y04Y |C2020 12 28.26845 08 39 31.91 +13 00 10.6 21.2 GVEY153807
K20Y04Y |C2020 12 28.27475 08 39 31.90 +13 00 00.0 21.3 GVEY153807
K20Y04Y |C2020 12 28.28078 08 39 31.92 +12 59 49.9 21.5 GVEY153807
K20Y04Y |C2020 12 29.27495 08 39 35.85 +12 31 39.4 21.1 GVEY153807
K20Y04Y |C2020 12 29.28151 08 39 35.83 +12 31 28.2 21.2 GVEY153807
K20Y04Y |C2020 12 29.28808 08 39 35.81 +12 31 16.8 21.3 GVEY153807
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 YY4 Earth MOID = 0.3731 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 339.00993 (2000.0) P Q
n 0.23982141 Peri. 244.98572 -0.94060026 -0.23476240
a 2.5657288 Node 280.66026 +0.32228699 -0.84459097
e 0.5021316 Incl. 14.45255 -0.10678136 -0.48119924
P 4.11 H 20.7 G 0.15 U 7
Residuals in seconds of arc
201224 F51 0.1+ 0.1- 201225 291 0.6+ 0.8- 201228 807 0.1+ 0.2+
201224 F51 0.0 0.1+ 201225 291 0.3- 0.3+ 201229 807 0.1+ 0.1-
201224 F51 0.2+ 0.1+ 201228 807 0.2- 0.1+ 201229 807 0.1+ 0.0
201224 F51 0.4- 0.1- 201228 807 0.3- 0.1+ 201229 807 0.1+ 0.1-
Ephemeris:
2020 YY4 a,e,i = 2.57, 0.50, 14 q = 1.2774
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 11 29 08 20 50.8 +23 13 48 0.8986 1.6709 124.8 29.0 22.9
...
2020 12 14 08 34 13.2 +18 46 42 0.7203 1.5836 136.0 25.6 22.2
...
2020 12 22 08 38 10.9 +15 45 09 0.6381 1.5392 142.4 23.0 21.8
...
2020 12 28 08 39 30.3 +13 07 32 0.5832 1.5072 147.2 20.7 21.4
2020 12 29 08 39 34.9 +12 39 21 0.5746 1.5020 148.0 20.3 21.4
2020 12 30 08 39 37.1 +12 10 37 0.5663 1.4968 148.8 19.9 21.3
...
2021 01 05 08 38 56.7 +09 06 22 0.5198 1.4666 153.4 17.5 21.0
...
2021 01 13 08 35 43.3 +04 30 44 0.4684 1.4286 158.0 14.9 20.7
...
2021 01 28 08 24 14.6 -05 05 29 0.4063 1.3665 156.3 16.9 20.3
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-Y153
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