MPEC 2021-C49 : 2017 GQ5 = 2010 JY209
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M.P.E.C. 2021-C49 Issued 2021 February 7, 00:53 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
2017 GQ5 = 2010 JY209
Revision to MPEC 2018-F24
Additional Observations:
K17G05Q C2010 04 03.39518112 33 17.064+03 41 11.81 21.53GVEC049F51
K17G05Q C2010 04 03.40365512 33 15.578+03 41 33.67 21.13GVEC049F51
K17G05Q C2017 04 20.22609 11 56 37.40 +20 13 57.9 21.4 GVEC049G96
K17G05Q C2017 04 20.23876 11 56 34.60 +20 14 34.2 21.4 GVEC049G96
K17G05Q C2017 04 20.24784 11 56 32.62 +20 15 01.2 21.2 GVEC049G96
K17G05Q C2017 04 25.41031911 38 13.445+24 12 41.22 21.33GVEC049F51
Observer details:
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.
G96 Mt. Lemmon Survey. Observer R. A. Kowalski. Measurers E. J. Christensen,
B. Gray, D. Rankin, F. C. Shelly. 1.5-m reflector + 10K CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
100403 F51 23.0+ 7.8+ 170425 F51 0.5+ 0.8+ MPO438999 -0.00 days
Orbital elements:
2017 GQ5 = 2010 JY209 Earth MOID = 0.3149 AU
Id. F. Manca
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 160.13902 (2000.0) P Q
n 0.70635634 Peri. 160.13276 +0.96541800 +0.25076565
a 1.2486867 Node 186.69566 -0.22707453 +0.94318540
e 0.7541039 Incl. 37.70349 +0.12808294 -0.21798600
P 1.40 H 20.5 G 0.15 U 3
Residuals in seconds of arc
100403 F51 0.3+ 0.4- 170404 926 0.1+ 0.2- 170420 G96 0.0 0.1-
100403 F51 0.3+ 0.6- 170404 J95 0.1+ 0.4+ 170420 G96 0.3+ 0.5+
100515 C51 0.7- 0.1- 170405 J95 0.2- 0.0 170424 691 0.8- 0.9+
100515 C51 (1.8+ 1.1-) 170405 J95 0.2+ 0.8+ 170424 691 0.3- 0.1+
100516 C51 1.1- 0.5- 170405 G96 0.1- 0.1- 170424 691 0.1+ 0.0
100516 C51 (3.6+ 2.7+) 170405 G96 0.2+ 0.7- 170425 F51 0.2+ 0.2-
100516 C51 0.4- 0.4- 170405 G96 0.4+ 0.3- 170506 H21 (1.6- 7.0+)
170326 F51 0.1- 0.1+ 170405 G96 0.1- 0.5- 170506 H21 (1.6- 7.3+)
170326 F51 0.1- 0.0 170405 926 0.6+ 0.1+ 170506 H21 (1.3- 6.9+)
170326 F51 0.2- 0.1- 170405 926 0.0 0.3- 170513 H21 (1.2- 2.4+)
170326 F51 0.5- 0.1- 170405 926 0.5+ 0.1+ 170513 H21 (1.0- 2.3+)
170403 F51 0.0 0.0 170406 291 0.0 0.1+ 170513 H21 (0.9- 2.3+)
170403 F51 0.0 0.1+ 170406 291 0.1+ 0.1- 170514 H21 1.0+ 0.6+
170403 F51 0.1- 0.1+ 170406 291 0.0 0.1+ 170514 H21 0.4+ 0.1+
170404 I52 0.3- 0.3- 170415 926 0.2- 0.1- 170514 H21 0.3+ 0.0
170404 I52 0.5+ 0.5+ 170415 926 0.3- 0.0 180314 807 0.0 0.1-
170404 I52 0.4- 0.8+ 170415 926 0.1- 0.1+ 180314 807 0.2- 0.2-
170404 568 0.0 0.2- 170417 G96 0.2+ 0.3- 180314 807 0.1- 0.1-
170404 568 0.0 0.2- 170417 G96 0.1+ 0.1- 180317 807 0.2+ 0.3+
170404 568 0.0 0.2- 170417 G96 0.4+ 0.3+ 180317 807 0.1+ 0.3+
170404 926 0.0 0.8- 170417 G96 0.4- 0.2- 180317 807 0.1+ 0.4+
170404 926 0.4+ 0.2- 170420 G96 0.1+ 0.5+
Ephemeris:
2017 GQ5 a,e,i = 1.25, 0.75, 38 q = 0.3070
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 01 08 12 41 19.9 -19 47 23 1.9518 2.1895 90.3 26.7 24.9
...
2021 01 23 12 44 03.3 -20 15 03 1.7269 2.1885 104.3 25.8 24.6
...
2021 01 31 12 42 27.1 -20 08 49 1.6078 2.1837 112.5 24.6 24.4
...
2021 02 06 12 39 35.7 -19 51 24 1.5211 2.1781 119.1 23.3 24.2
2021 02 07 12 38 58.1 -19 47 16 1.5069 2.1771 120.2 23.0 24.2
2021 02 08 12 38 17.9 -19 42 45 1.4929 2.1759 121.4 22.8 24.1
...
2021 02 14 12 33 19.3 -19 06 58 1.4113 2.1681 128.5 20.9 24.0
...
2021 02 22 12 24 04.6 -17 53 03 1.3118 2.1550 138.5 17.7 23.7
...
2021 03 09 11 59 10.4 -13 59 24 1.1664 2.1222 158.7 9.8 23.1
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-C49
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