MPEC 2023-J73 : 2020 GU2
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M.P.E.C. 2023-J73 Issued 2023 May 9, 14:05 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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 GU2
Revision to MPEC 2020-G109
Additional Observations:
K20G02U KC2023 04 26.31381211 24 34.750+56 55 53.10 21.64GVEJ073I52
K20G02U KC2023 04 26.31845411 24 37.110+56 55 22.20 22.06GVEJ073I52
K20G02U KC2023 04 26.32308911 24 39.290+56 54 51.40 21.51GVEJ073I52
K20G02U KC2023 05 08.20426512 19 47.456+38 22 05.34 22.56GVEJ073I52
K20G02U KC2023 05 08.21795312 19 49.609+38 21 02.16 22.39GVEJ073I52
K20G02U KC2023 05 08.23150312 19 51.690+38 19 59.45 22.48GVEJ073I52
Observer details:
I52 Steward Observatory, Mt. Lemmon Station. Observers A. Serrano, J. K.
Hogan. Measurers E. J. Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A.
R. Gibbs, A. D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M.
Larson, G. J. Leonard, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly,
K. W. Wierzchos. 1.0-m prime focus + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
230426 I52 2.08- 0.64- 230508 I52 1.42- 0.67- MPO546170 +0.04 days
Orbital elements:
2020 GU2 Earth MOID = 0.2374 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 359.22750 (2000.0) P Q
n 0.32315862 Peri. 11.63783 -0.25853410 -0.93274435
a 2.1030950 Node 93.73039 +0.86485637 -0.33937970
e 0.7112052 Incl. 14.58562 +0.43032962 +0.12169386
P 3.05 H 21.40 G 0.15 U 0
Residuals in seconds of arc
200406 G96 0.2- 0.1+ 200414 L01 0.0 0.5- 200417 I52 0.0 0.3-
200406 G96 0.1- 0.1+ 200414 L01 0.0 0.9- 200417 I52 0.3+ 0.1+
200406 G96 0.3+ 0.2+ 200414 246 1.5- 1.6- 200417 I52 0.0 0.4-
200413 G96 0.2+ 0.5+ 200414 246 1.4- 0.7- 200417 I52 0.0 0.2+
200413 G96 0.5+ 0.2+ 200414 246 0.3- 1.3- 200421 I52 0.1+ 0.0
200413 G96 0.0 0.0 200414 246 0.4+ 0.4- 200421 I52 0.2+ 0.6+
200413 033 0.4- 0.0 200414 246 0.2+ 1.4- 200421 I52 0.8+ 0.2-
200413 033 0.8- 0.5- 200414 I93 0.2- 0.2- 200421 I52 0.2- 0.1+
200413 033 0.8- 0.1- 200415 I93 0.2+ 0.3- 200427 V06 0.0 0.1+
200413 033 0.2- 0.0 200415 I93 0.4+ 0.2+ 200427 V06 0.4- 0.6+
200413 J95 0.3+ 0.4- 200415 J95 0.2+ 0.1+ 200427 V06 (1.5+ 2.4+)
200413 J95 0.2- 0.5- 200415 J95 0.1- 0.3- 200427 V06 0.4- 0.3+
200414 J95 0.9+ 0.0 200415 J95 0.5+ 0.1+ 200512 F51 0.0 0.0
200414 033 0.2- 0.7- 200415 H21 0.1+ 0.5+ 200512 F51 0.1- 0.1+
200414 033 0.1- 0.3- 200415 H36 0.9- 0.7- 200512 F51 0.0 0.1-
200414 033 0.1- 0.0 200415 H21 0.0 0.1+ 230426 I52 0.7- 0.0
200414 L01 0.1- 0.6+ 200415 H36 0.4- 0.2+ 230426 I52 0.5+ 0.3-
200414 K61 0.7- 0.5+ 200415 H21 0.0 0.1- 230426 I52 0.3+ 0.4-
200414 K61 0.6- 0.3- 200415 I52 0.1+ 0.1+ 230508 I52 0.3- 0.0
200414 K61 0.4- 0.4+ 200415 I52 0.6- 0.4+ 230508 I52 0.0 0.1+
200414 K61 0.5- 0.5+ 200415 I52 0.3+ 0.1- 230508 I52 0.3- 0.0
200414 L01 1.1+ 0.3+ 200415 I52 (0.2- 1.0+)
Ephemeris:
2020 GU2 a,e,i = 2.10, 0.71, 15 q = 0.6074
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 04 09 04 19 02.4 +68 02 58 0.3273 0.9321 68.4 92.5 22.1
...
2023 04 24 11 02 36.8 +61 11 02 0.3541 1.1116 98.0 63.6 21.6
...
2023 05 02 11 58 26.8 +47 13 33 0.4167 1.2065 108.5 52.4 21.8
...
2023 05 08 12 19 13.7 +38 37 53 0.4792 1.2766 113.3 46.6 22.1
2023 05 09 12 21 54.6 +37 21 45 0.4906 1.2882 113.8 45.8 22.1
2023 05 10 12 24 26.2 +36 08 14 0.5023 1.2997 114.3 45.0 22.2
...
2023 05 16 12 37 09.6 +29 36 28 0.5776 1.3682 116.2 41.5 22.5
...
2023 05 24 12 50 16.1 +22 40 53 0.6895 1.4573 116.5 38.4 22.9
...
2023 06 08 13 10 05.6 +13 17 42 0.9267 1.6174 112.7 35.4 23.7
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-J73
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