MPEC 2020-Y139 : 2020 YN4
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M.P.E.C. 2020-Y139 Issued 2020 December 27, 02:30 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 YN4
Observations:
K20Y04N C2020 12 24.43494 11 14 47.82 +17 22 36.2 20.3 GVEY139G96
K20Y04N C2020 12 24.44517 11 14 33.14 +17 24 23.3 19.6 GVEY139G96
K20Y04N*HC2020 12 26.34311110 30 11.84 +22 50 59.5 19.81GVEY139G96
K20Y04N HC2020 12 26.35342510 29 53.98 +22 52 56.1 VEY139G96
K20Y04N HC2020 12 26.35858010 29 45.01 +22 53 53.9 19.49GVEY139G96
K20Y04N KC2020 12 26.38717410 28 41.15 +22 58 29.5 19.3 VuEY139H21
K20Y04N KC2020 12 26.38921610 28 37.52 +22 58 51.0 19.7 VuEY139H21
K20Y04N KC2020 12 26.39125810 28 33.88 +22 59 12.4 19.9 VuEY139H21
K20Y04N KC2020 12 26.39309610 28 30.59 +22 59 31.5 19.8 VuEY139H21
K20Y04N KC2020 12 26.46187510 26 40.69 +23 12 32.4 19.19GVEY139I52
K20Y04N KC2020 12 26.46335610 26 37.99 +23 12 48.0 19.47GVEY139I52
K20Y04N KC2020 12 26.46483710 26 35.30 +23 13 03.4 19.35GVEY139I52
K20Y04N mC2020 12 26.53909310 24 19.92 +23 25 32.4 19.85GVEY139I52
K20Y04N mC2020 12 26.53940110 24 19.38 +23 25 35.5 19.74GVEY139I52
K20Y04N mC2020 12 26.54523910 24 08.80 +23 26 32.2 20.09GVEY139I52
K20Y04N mC2020 12 26.54554710 24 08.21 +23 26 35.4 19.47GVEY139I52
K20Y04N bC2020 12 26.93794910 14 11.32 +24 29 26.0 19.7 GVEY139L01
K20Y04N bC2020 12 26.93951510 14 08.61 +24 29 42.8 19.9 GVEY139L01
K20Y04N bC2020 12 26.94128510 14 05.51 +24 30 02.4 19.8 GVEY139L01
K20Y04N bC2020 12 26.94704110 13 55.39 +24 31 06.6 18.9 GVEY139L01
K20Y04N KC2020 12 26.98611510 12 47.53 +24 37 59.7 19.7 GVEY139203
K20Y04N KC2020 12 27.00870410 12 06.80 +24 42 04.6 19.7 GVEY139203
K20Y04N KC2020 12 27.05323 10 10 42.94 +24 50 01.2 19.5 GVEY139595
K20Y04N KC2020 12 27.06239 10 10 25.85 +24 51 36.6 19.6 GVEY139595
K20Y04N KC2020 12 27.07030 10 10 11.11 +24 52 57.4 19.5 GVEY139595
Observer details:
203 GiaGa Observatory. Observers S. Foglia, G. Galli. Measurer G. Galli.
0.36-m f/5.76 Schmidt-Cassegrain + CCD.
595 Farra d'Isonzo. Observer E. Pettarin. 0.40-m f/5.15 reflector + CCD.
G96 Mt. Lemmon Survey. Observer T. A. Pruyne. Measurers D. Rankin, B. Gray,
F. C. Shelly, 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, R. L. Seaman, 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.
I52 Steward Observatory, Mt. Lemmon Station. Observer K. W. Wierzchos.
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.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
Orbital elements:
2020 YN4 Earth MOID = 0.0017 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 129.98283 (2000.0) P Q
n 1.18404774 Peri. 296.11412 +0.57675089 +0.81691991
a 0.8848913 Node 9.10827 -0.74834854 +0.52859041
e 0.1460123 Incl. 0.18548 -0.32761696 +0.23072502
P 0.83 H 27.0 G 0.15 U 7
Residuals in seconds of arc
201224 G96 0.1+ 0.1- 201226 I52 0.1+ 0.1+ 201226 L01 0.2+ 0.5-
201224 G96 0.4- 0.4- 201226 I52 0.0 0.3+ 201226 L01 0.5- 0.2+
201226 G96 0.8+ 0.0 201226 I52 0.1+ 0.2+ 201226 203 0.3+ 0.4-
201226 G96 0.4- 0.5+ 201226 I52 0.1- 0.1+ 201227 203 0.8- 0.2-
201226 G96 0.9- 0.6+ 201226 I52 0.2+ 0.2+ 201227 595 0.0 0.0
201226 H21 0.0 0.0 201226 I52 0.4+ 0.0 201227 595 0.4- 0.4+
201226 H21 0.2+ 0.0 201226 I52 0.0 0.2+ 201227 595 0.0 0.4-
201226 H21 0.3+ 0.0 201226 L01 0.2+ 0.1-
201226 H21 0.2+ 0.2- 201226 L01 0.4+ 0.6-
Ephemeris:
2020 YN4 a,e,i = 0.88, 0.15, 0 q = 0.7557
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 11 27 14 16 51.8 -10 57 00 0.05701 0.9375 29.4 148.9 28.9
...
2020 12 12 13 24 49.2 -03 03 52 0.03212 0.9687 59.5 118.8 24.2
...
2020 12 20 12 24 11.1 +06 58 36 0.02077 0.9824 85.6 93.2 21.9
...
2020 12 26 10 38 33.9 +21 54 20 0.01511 0.9912 120.6 58.6 20.0
2020 12 27 10 12 00.8 +24 44 53 0.01470 0.9926 128.2 51.1 19.7
2020 12 28 09 42 59.9 +27 23 14 0.01450 0.9938 136.0 43.4 19.5
...
2021 01 03 06 47 40.7 +33 28 06 0.01769 1.0006 169.3 10.5 18.9
...
2021 01 11 04 56 00.4 +28 45 29 0.02899 1.0073 144.8 34.3 20.7
...
2021 01 26 04 08 24.5 +23 46 28 0.05558 1.0123 118.6 58.6 22.9
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-Y139
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