[Iaude] MPEC Y154: 2020 YZ4 [a=1.24,e=0.28,i=1.1,H=27.2]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Tue Dec 29 15:16:53 EST 2020
M.P.E.C. 2020-Y154 Issued 2020 December 29, 20:15 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 YZ4
Observations:
K20Y04Z* C2020 12 27.16969207 22 58.70 +37 17 44.4 20.17GVEY154G96
K20Y04Z C2020 12 27.18935107 22 55.12 +37 14 24.4 19.97GVEY154G96
K20Y04Z C2020 12 27.19741007 22 53.58 +37 13 03.6 20.56GVEY154G96
K20Y04Z KC2020 12 27.37689007 22 11.08 +36 42 01.7 VEY154I52
K20Y04Z KC2020 12 27.37961507 22 10.41 +36 41 33.0 19.82GVEY154I52
K20Y04Z KC2020 12 27.38234207 22 09.75 +36 41 03.8 19.60GVEY154I52
K20Y04Z KC2020 12 27.38506607 22 09.12 +36 40 34.5 19.58GVEY154I52
K20Y04Z bC2020 12 27.73536107 22 00.81 +35 38 48.8 20.3 GVEY154L01
K20Y04Z bC2020 12 27.73908307 22 00.49 +35 38 16.4 20.4 GVEY154L01
K20Y04Z bC2020 12 27.75501407 21 59.07 +35 35 59.8 19.7 GVEY154L01
K20Y04Z bC2020 12 27.75962707 21 58.66 +35 35 19.5 20.1 GVEY154L01
Observer details:
G96 Mt. Lemmon Survey. Observer T. A. Pruyne. 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.
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 YZ4 Earth MOID = 0.0087 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Pike
M 28.18740 (2000.0) P Q
n 0.71068333 Peri. 99.27511 +0.81419895 -0.58032508
a 1.2436131 Node 296.20022 +0.52477305 +0.74842159
e 0.2795160 Incl. 1.11140 +0.24838139 +0.32107310
P 1.39 H 27.26 G 0.15 U 7
Residuals in seconds of arc
201227 G96 (0.7- 1.0+) 201227 I52 0.1- 0.1+ 201227 L01 0.0+ 0.1-
201227 G96 0.2- 0.3- 201227 I52 0.1- 0.1+ 201227 L01 0.3- 0.3+
201227 G96 0.2+ 0.4+ 201227 I52 0.3+ 0.0+ 201227 L01 0.0- 0.4-
201227 I52 0.1- 0.3- 201227 L01 0.3+ 0.2+
Ephemeris:
2020 YZ4 a,e,i = 1.24, 0.28, 1 q = 0.8960
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 11 29 19 04 57.4 -13 25 02 0.08944 0.9196 39.9 136.5 28.2
...
2020 12 14 19 07 21.1 -01 03 14 0.02929 0.9600 33.1 145.9 27.2
...
2020 12 22 10 44 31.3 +83 56 11 0.0092740.9877 115.3 64.2 19.3
...
2020 12 28 07 21 20.1 +35 01 51 0.02830 1.0105 163.5 16.1 20.4
2020 12 29 07 20 09.8 +32 51 41 0.03210 1.0145 165.7 13.8 20.6
2020 12 30 07 19 14.8 +31 08 50 0.03596 1.0185 167.7 11.9 20.8
...
2021 01 05 07 16 02.7 +25 32 20 0.05991 1.0430 175.9 3.9 21.6
...
2021 01 13 07 14 06.1 +22 35 52 0.09416 1.0773 174.3 5.2 22.7
...
2021 01 28 07 15 56.4 +20 32 00 0.1680 1.1438 159.7 17.4 24.6
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-Y154
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