[Iaude] MPEC Y135: 2020 YJ4 [a=1.30,e=0.23,i=18.7,H=24.0]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Sat Dec 26 18:07:05 EST 2020
M.P.E.C. 2020-Y135 Issued 2020 December 26, 23:05 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2020 YJ4
Observations:
K20Y04J C2020 12 24.34018206 34 50.306+62 32 52.45 19.70GVEY135F51
K20Y04J C2020 12 24.35476306 34 45.393+62 27 55.45 19.43GVEY135F51
K20Y04J* C2020 12 26.21811806 29 07.85 +51 02 03.9 19.24GVEY135703
K20Y04J C2020 12 26.22361106 29 06.54 +51 00 00.6 18.93GVEY135703
K20Y04J C2020 12 26.22909706 29 05.40 +50 57 55.6 18.40GVEY135703
K20Y04J KC2020 12 26.25051406 29 00.70 +50 49 47.9 18.90GVEY135I52
K20Y04J KC2020 12 26.25175006 29 00.44 +50 49 19.6 18.73GVEY135I52
K20Y04J KC2020 12 26.25298306 29 00.19 +50 48 51.6 18.73GVEY135I52
K20Y04J KC2020 12 26.25421806 28 59.91 +50 48 23.3 18.81GVEY135I52
K20Y04J KC2020 12 26.39896106 28 28.19 +49 52 34.6 18.41GVEY135I52
K20Y04J KC2020 12 26.39994906 28 27.99 +49 52 11.5 18.43GVEY135I52
K20Y04J KC2020 12 26.40094206 28 27.78 +49 51 48.1 18.53GVEY135I52
K20Y04J KC2020 12 26.40193106 28 27.57 +49 51 25.0 18.60GVEY135I52
K20Y04J bC2020 12 26.70888306 28 06.82 +47 50 54.7 18.6 GVEY135L01
K20Y04J pC2020 12 26.71007306 28 06.72 +47 50 27.4 18.4 GVEY135L01
K20Y04J bC2020 12 26.71099606 28 06.63 +47 50 06.3 18.4 GVEY135L01
K20Y04J bC2020 12 26.71347006 28 06.26 +47 49 10.7 18.6 GVEY135L01
K20Y04J bC2020 12 26.71906106 28 05.55 +47 47 03.3 18.6 GVEY135L01
K20Y04J KC2020 12 26.73572 06 28 02.31 +47 40 34.0 17.6 RVEY135113
K20Y04J KC2020 12 26.73802 06 28 02.02 +47 39 42.9 18.7 RVEY135113
K20Y04J KC2020 12 26.80694406 27 54.82 +47 13 32.9 18.3 GVEY135B49
K20Y04J KC2020 12 26.80761606 27 54.71 +47 13 17.4 18.3 GVEY135B49
K20Y04J KC2020 12 26.82514 06 27 50.10 +47 06 40.3 18.9 GVEY135595
K20Y04J KC2020 12 26.83506 06 27 48.99 +47 02 48.2 VEY135204
K20Y04J pC2020 12 26.83974 06 27 47.68 +47 01 06.1 18.8 GVEY135595
K20Y04J KC2020 12 26.84205 06 27 47.86 +47 00 08.1 VEY135204
K20Y04J pC2020 12 26.84808 06 27 46.20 +46 57 54.7 18.8 GVEY135595
K20Y04J KC2020 12 26.84903 06 27 46.72 +46 57 27.9 18.7 GVEY135204
K20Y04J KC2020 12 26.86109 06 27 45.11 +46 52 53.0 18.4 GVEY135C77
K20Y04J KC2020 12 26.86509 06 27 44.37 +46 51 21.2 17.9 GVEY135C77
K20Y04J KC2020 12 26.86912 06 27 43.67 +46 49 49.0 18.6 GVEY135C77
K20Y04J KC2020 12 26.87092 06 27 42.25 +46 49 08.9 18.5 GVEY135595
K20Y04J KC2020 12 26.88266006 27 41.01 +46 44 34.1 18.6 GVEY135K38
K20Y04J KC2020 12 26.89912506 27 38.05 +46 38 14.6 18.4 GVEY135K38
K20Y04J KC2020 12 26.90552306 27 36.90 +46 35 46.5 18.6 GVEY135K38
K20Y04J KC2020 12 26.91357406 27 35.47 +46 32 40.4 18.3 GVEY135K38
Observer details:
113 Volkssternwarte Drebach, Schoenbrunn. Observer G. Lehmann. 0.5-m f/4.6
reflector + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector +
CCD.
595 Farra d'Isonzo. Observer E. Pettarin. 0.40-m f/5.15 reflector + CCD.
703 Catalina Sky Survey. 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. 0.68-m Schmidt + 10K
CCD.
B49 Paus Observatory, Sabadell. Observer J. Camarasa. 0.30-m f/4 reflector +
CCD.
C77 Bernezzo Observatory. Observer A. Mantero. 0.25-m f/4.0 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + 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.
K38 M57 Observatory, Saltrio. Observer G. Baj. 0.3-m f/5.5 Ritchey-Chretien
+ CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
Orbital elements:
2020 YJ4 Earth MOID = 0.0554 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 15.41905 (2000.0) P Q
n 0.66360165 Peri. 140.71584 +0.47307668 -0.82213522
a 1.3017605 Node 278.88086 +0.70585318 +0.56879421
e 0.2332136 Incl. 18.69510 +0.52722836 -0.02380791
P 1.49 H 24.0 G 0.15 U 7
Residuals in seconds of arc
201224 F51 0.1- 0.1- 201226 I52 0.0 0.2- 201226 595 0.3+ 0.2+
201224 F51 0.0 0.1+ 201226 L01 0.2- 0.1- 201226 204 0.2- 0.0
201226 703 1.1+ 0.0 201226 L01 0.2+ 0.3- 201226 595 0.4- 0.3+
201226 703 0.2- 1.1+ 201226 L01 0.5+ 0.4- 201226 204 0.1- 0.0
201226 703 0.2+ 0.5+ 201226 L01 0.2- 0.3+ 201226 C77 0.4+ 0.2-
201226 I52 0.3- 0.1- 201226 L01 0.4- 0.1+ 201226 C77 0.3- 0.1-
201226 I52 0.2- 0.3- 201226 113 0.7- 1.4- 201226 C77 0.3- 0.4+
201226 I52 0.0 0.2- 201226 113 0.6- 0.0 201226 595 0.5- 0.2+
201226 I52 0.0 0.3- 201226 B49 0.9+ 1.6+ 201226 K38 0.5+ 0.5-
201226 I52 0.1+ 0.3- 201226 B49 0.8+ 1.4+ 201226 K38 0.1- 0.1-
201226 I52 0.2+ 0.2- 201226 595 0.3+ 0.6- 201226 K38 0.3- 0.3-
201226 I52 0.1+ 0.3- 201226 204 0.3- 0.1- 201226 K38 0.1- 0.2-
Ephemeris:
2020 YJ4 a,e,i = 1.30, 0.23, 19 q = 0.9982
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 11 26 18 07 02.4 +63 47 01 0.1921 0.9983 87.9 81.1 23.2
...
2020 12 11 17 49 06.7 +75 30 02 0.1146 1.0083 98.7 74.9 21.9
...
2020 12 19 08 31 22.5 +86 17 23 0.07584 1.0197 116.2 60.0 20.6
...
2020 12 25 06 32 18.1 +58 37 33 0.05717 1.0306 144.6 33.5 19.3
2020 12 26 06 29 30.8 +52 25 09 0.05593 1.0327 150.9 27.6 19.0
2020 12 27 06 27 21.3 +45 59 26 0.05540 1.0347 157.3 21.5 18.8
...
2021 01 02 06 20 41.2 +11 22 55 0.06674 1.0483 166.5 12.7 19.0
...
2021 01 10 06 18 08.9 -11 43 03 0.1053 1.0689 142.5 34.1 20.7
...
2021 01 25 06 21 22.5 -24 02 43 0.1972 1.1139 126.8 45.0 22.4
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-Y135
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