[Iaude] MPEC E20: 2017 YG5 [a=67.57,e=0.89,i=23.7,H=12.5]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Sat Mar 2 12:35:18 EST 2019
M.P.E.C. 2019-E20 Issued 2019 Mar. 2, 17:31 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
2017 YG5
Revision to MPEC 2017-Y118
Additional Observations:
K17Y05G KC2019 02 16.06942 06 54 08.04 -03 27 43.2 21.0 RVEE020304
K17Y05G KC2019 02 16.13653 06 54 07.41 -03 27 33.2 21.6 RVEE020304
K17Y05G KC2019 02 20.13986 06 53 35.41 -03 17 34.4 21.4 RVEE020304
K17Y05G KC2019 02 20.14770 06 53 35.35 -03 17 33.5 20.9 RVEE020304
Observer details:
304 Las Campanas Observatory. Observers T. A. Rector, A. L. Strom.
Measurers B. A. O'keeffe, P. E. Halford, A. W. Puckett. 1.02-m f/7.0
Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
190216 304 13.8+ 58.6- 190220 304 13.3+ 57.5- MPO431427 +10 day
Orbital elements:
2017 YG5
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 359.35297 (2000.0) P Q
n 0.00177459 Peri. 296.65844 -0.72208395 -0.67524087
a 67.5674507 Node 201.96097 +0.68527249 -0.72796153
e 0.8904527 Incl. 23.72722 -0.09484927 -0.11883510
P 555 H 12.5 G 0.15 U 2
Residuals in seconds of arc
171214 F51 0.1+ 0.1+ 171225 807 0.0 0.2- 171226 291 0.1- 0.0
171214 F51 0.2- 0.2+ 171225 807 0.0 0.2- 171226 291 0.1- 0.0
171214 F51 0.0 0.2- 171225 807 0.3- 0.0 190216 304 0.0 0.1+
171214 F51 0.1+ 0.1- 171225 F51 0.0 0.2+ 190216 304 0.1- 0.3+
171223 F51 0.1- 0.2- 171225 F51 0.2+ 0.1+ 190220 304 0.1+ 0.0
171223 F51 0.0 0.0 171225 F51 0.1+ 0.0 190220 304 0.1+ 0.3-
171223 F51 0.2- 0.1+ 171225 F51 0.1+ 0.1+
Ephemeris:
2017 YG5 a,e,i = 67.57, 0.89, 24 q = 7.4018
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2019 01 31 06 57 21.1 -04 01 45 7.0477 7.8697 144.4 4.2 21.6
...
2019 02 15 06 54 17.8 -03 30 19 7.1342 7.8402 132.9 5.3 21.7
...
2019 02 23 06 53 17.0 -03 10 11 7.2002 7.8248 126.2 5.9 21.7
...
2019 03 01 06 52 50.6 -02 54 03 7.2573 7.8135 121.0 6.2 21.8
2019 03 02 06 52 47.8 -02 51 18 7.2673 7.8116 120.1 6.3 21.8
2019 03 03 06 52 45.6 -02 48 32 7.2776 7.8097 119.2 6.4 21.8
...
2019 03 09 06 52 42.8 -02 31 43 7.3420 7.7985 114.0 6.7 21.8
...
2019 03 17 06 53 07.6 -02 09 00 7.4345 7.7839 107.0 7.0 21.8
...
2019 04 01 06 55 21.4 -01 27 28 7.6216 7.7570 94.1 7.4 21.9
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-E20
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