MPEC 2020-F108 : 2018 GY
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M.P.E.C. 2020-F108 Issued 2020 March 24, 18:01 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
2018 GY
Revision to MPEC 2018-G45
Additional Observations:
K18G00Y C2018 03 18.57768516 01 27.182-11 27 38.57 20.4 GVEF108F51
K18G00Y C2018 03 18.58912416 01 20.860-11 26 07.83 20.9 GVEF108F51
K18G00Y C2018 03 18.60049516 01 14.703-11 24 37.92 19.3 GVEF108F51
K18G00Y C2018 03 18.61187816 01 08.399-11 23 07.34 20.2 GVEF108F51
K18G00Y C2020 03 21.35088411 54 25.050+18 27 36.96 18.7 GVEF108F51
K18G00Y C2020 03 21.35354111 54 21.750+18 28 13.78 19.8 GVEF108F51
K18G00Y C2020 03 24.29034 11 10 26.44 +26 15 05.5 VEF108703
K18G00Y C2020 03 24.29568 11 10 22.45 +26 15 39.1 19.6 GVEF108703
K18G00Y C2020 03 24.30100 11 10 18.42 +26 16 13.1 19.5 GVEF108703
K18G00Y C2020 03 24.30630 11 10 14.62 +26 16 47.5 19.6 GVEF108703
Observer details:
703 Catalina Sky Survey. Observer D. Rankin. 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.
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.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
180318 F51 0- 0- 200324 703 10- 2- MPO445225 -0.71 days
Orbital elements:
2018 GY Earth MOID = 0.0088 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5 Veres
M 239.41606 (2000.0) P Q
n 1.47058763 Peri. 204.81784 +0.92834596 -0.37163030
a 0.7658472 Node 176.96395 +0.36134826 +0.89716293
e 0.4070457 Incl. 8.73536 +0.08718495 +0.23872492
P 0.67 H 24.6 G 0.15 U 4
Residuals in seconds of arc
180318 F51 0.7+ 0.4- 180408 I52 0.9- 0.5- 180418 H01 0.1+ 0.3+
180318 F51 0.5- 0.0 180409 I52 1.4- 0.2+ 180418 H01 0.2+ 0.2+
180318 F51 0.4+ 0.0 180409 I52 (2.8- 0.2+) 180418 H01 0.2- 0.2+
180318 F51 0.7- 0.3+ 180409 I52 (2.8- 0.0 ) 180418 H01 0.2- 0.3+
180408 G96 0.9+ 0.4- 180410 H01 0.5+ 0.2- 200321 F51 0.0 0.1-
180408 G96 0.6- 0.7- 180410 H01 0.5+ 0.0 200321 F51 0.1+ 0.0
180408 G96 0.6+ 0.1- 180410 H01 0.4+ 0.0 200324 703 0.5- 0.8+
180408 G96 0.3+ 0.0 180410 H01 0.4+ 0.0 200324 703 0.0 0.2+
180408 I52 1.2- 0.5- 180416 291 0.5+ 0.3+ 200324 703 0.3- 0.3+
180408 I52 (1.9- 0.7-) 180416 291 0.1- 0.3+ 200324 703 (2.1+ 1.0+)
180408 I52 (1.9- 0.5-) 180416 291 0.1+ 0.5+
Ephemeris:
2018 GY a,e,i = 0.77, 0.41, 9 q = 0.4541
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 02 23 20 12 05.5 -42 10 12 0.1223 0.9032 42.7 132.0 25.7
...
2020 03 09 18 17 06.2 -42 33 39 0.04699 0.9826 76.1 101.2 21.6
...
2020 03 17 13 57 56.7 -09 28 11 0.02418 1.0151 145.8 33.5 17.9
...
2020 03 23 11 26 56.2 +23 31 54 0.04257 1.0350 153.4 25.6 19.0
2020 03 24 11 13 52.0 +25 42 55 0.04720 1.0379 149.3 29.3 19.3
2020 03 25 11 02 51.8 +27 25 46 0.05201 1.0407 145.8 32.6 19.6
...
2020 03 31 10 23 30.1 +32 35 35 0.08286 1.0555 131.3 45.3 21.0
...
2020 04 08 10 03 33.4 +34 31 19 0.1258 1.0693 119.8 54.4 22.2
...
2020 04 23 09 57 11.1 +34 39 12 0.2054 1.0773 105.0 64.3 23.6
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-F108
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