MPEC 2020-Y81 : 2020 YF2
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M.P.E.C. 2020-Y81 Issued 2020 December 22, 02:54 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 YF2
Observations:
K20Y02F* C2020 12 20.17142502 45 25.21 +05 16 20.4 20.24GVEY081G96
K20Y02F C2020 12 20.17708202 45 29.11 +05 16 43.8 20.70GVEY081G96
K20Y02F C2020 12 20.18275002 45 33.02 +05 17 07.0 20.37GVEY081G96
K20Y02F C2020 12 20.18841002 45 36.93 +05 17 29.7 20.17GVEY081G96
K20Y02F KC2020 12 20.31179702 47 01.36 +05 25 48.4 20.29GVEY081I52
K20Y02F KC2020 12 20.31278702 47 01.99 +05 25 51.6 21.32GVEY081I52
K20Y02F KC2020 12 20.31377602 47 02.66 +05 25 55.6 20.58GVEY081I52
K20Y02F KC2020 12 20.31476402 47 03.36 +05 26 00.1 20.33GVEY081I52
K20Y02F 2C2020 12 20.75452702 52 00.69 +05 53 46.8 19.9 GVEY081Z84
K20Y02F 2C2020 12 20.76361402 52 06.33 +05 54 19.8 20.2 GVEY081Z84
K20Y02F 2C2020 12 20.77270002 52 11.95 +05 54 53.0 19.8 GVEY081Z84
K20Y02F 2C2020 12 20.78232202 52 17.87 +05 55 27.8 20.6 GVEY081Z84
K20Y02F KC2020 12 21.03410002 54 52.46 +06 10 08.8 20.3 VuEY081H21
K20Y02F KC2020 12 21.03992602 54 55.86 +06 10 28.8 20.7 VuEY081H21
K20Y02F KC2020 12 21.04545902 54 59.08 +06 10 47.3 20.6 VuEY081H21
K20Y02F KC2020 12 21.09544802 55 28.97 +06 13 40.3 21.1 VqEY081858
K20Y02F KC2020 12 21.10825802 55 36.30 +06 14 23.4 20.8 VqEY081858
K20Y02F KC2020 12 21.11248802 55 39.00 +06 14 39.8 20.76GVEY081I52
K20Y02F KC2020 12 21.11374802 55 39.73 +06 14 44.2 20.32GVEY081I52
K20Y02F KC2020 12 21.11500702 55 40.43 +06 14 48.4 20.66GVEY081I52
K20Y02F KC2020 12 21.12007902 55 43.07 +06 15 03.2 20.8 VqEY081858
K20Y02F KC2020 12 21.14027 02 55 54.10 +06 16 07.9 21.0 GVEY081H36
K20Y02F KC2020 12 21.16282 02 56 06.78 +06 17 23.1 20.8 GVEY081H36
K20Y02F KC2020 12 21.18462 02 56 19.10 +06 18 35.1 20.6 GVEY081H36
K20Y02F KC2020 12 22.07045203 04 17.06 +07 03 17.8 20.5 VqEY081858
K20Y02F KC2020 12 22.08148003 04 22.27 +07 03 48.4 20.8 VqEY081858
K20Y02F KC2020 12 22.09180803 04 27.18 +07 04 17.7 20.7 VqEY081858
Observer details:
858 Tebbutt Observatory, Edgewood. Observer F. B. Zoltowski. 0.51-m Schmidt-
Cassegrain + CCD.
G96 Mt. Lemmon Survey. Observer D. Rankin. Measurers E. J. Christensen, G.
A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L.
Seaman, F. C. Shelly, K. W. Wierzchos. 1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.76-m f/3.0
astrograph + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer G. J. Leonard.
Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A.
Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.0-m
reflector + CCD.
Z84 Calar Alto-Schmidt. Observer E. Schwab. Measurers E. Schwab, D. Koschny,
M. Micheli, R. Jehn. 0.8-m f/3 Schmidt + CCD.
Orbital elements:
2020 YF2 Earth MOID = 0.0093 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 23.09569 (2000.0) P Q
n 0.48174835 Peri. 68.19880 +0.79042242 +0.59584513
a 1.6115949 Node 254.94914 -0.60220888 +0.71337797
e 0.7691644 Incl. 8.46348 -0.11214658 +0.36886373
P 2.05 H 23.2 G 0.15 U 9
Residuals in seconds of arc
201220 G96 0.7+ 0.0 201220 Z84 0.1- 0.3- 201221 I52 0.3- 0.2-
201220 G96 0.5+ 0.1+ 201220 Z84 0.2+ 0.1- 201221 I52 0.6- 0.2-
201220 G96 0.3+ 0.0 201220 Z84 0.3+ 0.1- 201221 858 0.1- 0.2-
201220 G96 0.3+ 0.5- 201221 H21 0.4- 0.4+ 201221 H36 2.2+ 0.1+
201220 I52 0.1- 0.5+ 201221 H21 0.3- 0.5+ 201221 H36 0.6+ 0.3+
201220 I52 0.8- 0.2- 201221 H21 0.3- 0.1+ 201221 H36 0.7+ 0.3+
201220 I52 0.8- 0.1- 201221 858 0.2- 0.1- 201222 858 0.5+ 0.1-
201220 I52 0.4- 0.5+ 201221 858 0.3- 0.2- 201222 858 0.3- 0.3-
201220 Z84 0.4- 0.2- 201221 I52 0.4- 0.4- 201222 858 0.4- 0.3+
Ephemeris:
2020 YF2 a,e,i = 1.61, 0.77, 8 q = 0.3720
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 11 22 16 56 33.2 -16 40 36 0.3691 0.6410 16.0 154.9 29.5
...
2020 12 07 18 27 27.4 -20 16 06 0.1133 0.8808 21.6 155.7 27.9
...
2020 12 15 00 38 17.7 -07 03 44 0.06641 1.0008 102.6 73.7 19.9
...
2020 12 21 02 54 29.9 +06 08 43 0.1437 1.0867 132.9 41.5 20.8
2020 12 22 03 03 39.8 +07 00 26 0.1589 1.1006 134.3 39.7 21.0
2020 12 23 03 11 18.9 +07 43 05 0.1744 1.1145 135.4 38.3 21.2
...
2020 12 29 03 39 47.2 +10 17 25 0.2710 1.1956 136.9 34.2 22.2
...
2021 01 06 03 59 06.6 +11 58 22 0.4061 1.2985 134.0 33.0 23.2
...
2021 01 21 04 21 27.0 +13 47 32 0.6757 1.4769 124.7 33.2 24.6
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-Y81
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