MPEC 2020-A04 : 2019 YU4
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M.P.E.C. 2020-A04 Issued 2020 January 1, 03:48 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
2019 YU4
Observations:
K19Y04U* C2019 12 30.36984 06 58 19.46 +26 48 01.7 21.5 GVEA004V00
K19Y04U C2019 12 30.37303 06 58 19.54 +26 48 02.2 21.9 GVEA004V00
K19Y04U C2019 12 30.37937 06 58 19.72 +26 48 03.7 21.3 GVEA004V00
K19Y04U KC2019 12 30.90807406 58 46.26 +26 50 13.6 21.7 GVEA004L01
K19Y04U KC2019 12 30.91239306 58 46.40 +26 50 14.6 21.8 GVEA004L01
K19Y04U KC2019 12 30.91750106 58 46.55 +26 50 16.1 21.7 GVEA004L01
K19Y04U C2019 12 30.97626 06 58 48.38 +26 50 28.4 21.5 VVEA004033
K19Y04U C2019 12 30.97983 06 58 48.48 +26 50 29.5 21.3 VVEA004033
K19Y04U C2019 12 30.98340 06 58 48.59 +26 50 30.3 21.6 VVEA004033
K19Y04U C2020 01 01.11651906 59 43.71 +26 55 28.6 21.6 GVEA004H01
K19Y04U C2020 01 01.12281606 59 43.95 +26 55 31.0 21.3 GVEA004H01
K19Y04U C2020 01 01.13147006 59 44.29 +26 55 34.2 21.1 GVEA004H01
K19Y04U C2020 01 01.14501206 59 44.78 +26 55 39.2 21.5 GVEA004H01
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, F.
Ludwig, B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 Ritchey-Chretien + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector +
CCD.
V00 Kitt Peak-Bok. Observers A. R. Gibbs, H. Groeller, J. V. Scotti.
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. 2.25-m
reflector + CCD.
Orbital elements:
2019 YU4 Earth MOID = 0.1652 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5 Bell
M 68.70269 (2000.0) P Q
n 0.50721996 Peri. 57.45291 -0.41015550 -0.91192091
a 1.5571788 Node 56.76716 +0.83140129 -0.37978602
e 0.2627027 Incl. 0.90029 +0.37489247 -0.15544402
P 1.94 H 24.8 G 0.15 U 7
Residuals in seconds of arc
191230 V00 0.0 0.1+ 191230 L01 0.0 0.2- 200101 H01 0.1- 0.0
191230 V00 0.1- 0.1- 191230 033 0.1+ 0.0 200101 H01 0.1+ 0.0
191230 V00 0.1+ 0.1- 191230 033 0.1- 0.2+ 200101 H01 0.0 0.1+
191230 L01 0.0 0.2+ 191230 033 0.1- 0.0
191230 L01 0.1+ 0.1- 200101 H01 0.0 0.1-
Ephemeris:
2019 YU4 a,e,i = 1.56, 0.26, 1 q = 1.1481
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2019 12 02 06 29 43.3 +24 38 36 0.2420 1.2057 152.4 22.2 23.2
...
2019 12 17 06 46 58.7 +25 43 51 0.1974 1.1748 163.7 13.6 22.4
...
2019 12 25 06 54 06.2 +26 22 53 0.1816 1.1628 169.9 8.6 22.0
...
2019 12 31 06 58 49.3 +26 50 55 0.1735 1.1560 174.0 5.1 21.7
2020 01 01 06 59 35.3 +26 55 17 0.1725 1.1551 174.5 4.7 21.7
2020 01 02 07 00 21.3 +26 59 32 0.1715 1.1542 175.0 4.3 21.7
...
2020 01 08 07 05 03.4 +27 21 48 0.1675 1.1502 174.7 4.5 21.6
...
2020 01 16 07 12 01.1 +27 39 43 0.1668 1.1480 169.5 8.9 21.8
...
2020 01 31 07 29 09.0 +27 23 45 0.1794 1.1542 158.8 18.0 22.3
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-A04
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