[Iaude] MPEC Y85: 2021 GC179 [a=2.24,e=0.42,i=4.0,H=20.99]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Mon Dec 25 10:12:18 EST 2023
M.P.E.C. 2023-Y85 Issued 2023 December 25, 15:10 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 GC179
Revision to MPEC 2022-P61
Additional Observations:
K21GH9C KC2023 10 19.38616101 55 11.876+17 42 56.02 23.23GVEY085F52
K21GH9C KC2023 11 18.23404701 18 25.202+15 00 44.82 22.61GVEY085F51
K21GH9C C2023 12 04.36981001 07 48.624+13 47 39.34 22.55GVEY085F52
K21GH9C 0C2023 12 16.28162901 07 04.992+13 26 27.41 23.84GVEY085T12
K21GH9C 0C2023 12 16.29603901 07 05.118+13 26 27.00 23.69GVEY085T12
K21GH9C 0C2023 12 18.31607801 07 34.360+13 26 06.26 23.86GVEY085T12
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
T12 University of Hawaii 88-inch telescope, Maunakea. Observer D. J. Tholen.
2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
231019 F52 52.4- 23.2- 231218 T12 37.3- 21.2- MPO709950 -0.03 days
Orbital elements:
2021 GC179 Earth MOID = 0.3138 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 290.01875 (2000.0) P Q
n 0.29453976 Peri. 156.51139 -0.74140940 -0.67068583
a 2.2372101 Node 341.31403 +0.60417430 -0.65275949
e 0.4187917 Incl. 3.97251 +0.29203685 -0.35225781
P 3.35 H 20.99 G 0.15 U 3
Residuals in seconds of arc
210322 F51 0.0 0.2- 210409 F51 0.0 0.0 210503 F51 0.1+ 0.0
210322 F51 0.0 0.0 210409 F51 0.0 0.0 210515 F51 0.2+ 0.1+
210322 F51 0.1- 0.1- 210413 F52 0.1+ 0.0 231019 F52 0.1+ 0.0
210322 F51 0.1- 0.1- 210416 F52 0.2- 0.2- 231118 F51 0.1- 0.0
210409 G96 0.4- 0.0 210420 G96 0.1+ 0.3- 231204 F52 0.0 0.0
210409 G96 0.6- 0.5+ 210420 G96 0.3- 0.5- 231216 T12 0.1+ 0.1-
210409 G96 0.8- 0.6+ 210420 G96 0.1- 0.2- 231216 T12 0.0 0.1-
210409 G96 0.6+ 0.0 210420 G96 0.7- 0.1+ 231218 T12 0.0 0.1-
210409 F51 0.1+ 0.1+ 210503 F51 0.4- 0.1+
210409 F51 0.1+ 0.0 210503 F51 0.1- 0.0
Ephemeris:
2021 GC179 a,e,i = 2.24, 0.42, 4 q = 1.3003
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 11 25 01 12 42.1 +14 25 07 1.0738 1.9353 139.7 19.3 23.6
...
2023 12 10 01 06 41.8 +13 33 39 1.1252 1.8559 123.0 26.4 23.8
...
2023 12 18 01 07 29.3 +13 26 07 1.1621 1.8135 115.1 29.4 23.9
...
2023 12 24 01 09 51.9 +13 30 14 1.1921 1.7818 109.6 31.3 24.0
2023 12 25 01 10 24.2 +13 31 43 1.1972 1.7765 108.7 31.6 24.0
2023 12 26 01 10 58.8 +13 33 25 1.2023 1.7712 107.8 31.9 24.0
...
2024 01 01 01 15 15.2 +13 48 11 1.2335 1.7396 102.8 33.4 24.0
...
2024 01 09 01 23 00.3 +14 19 17 1.2752 1.6979 96.6 35.1 24.1
...
2024 01 24 01 43 19.4 +15 47 53 1.3495 1.6213 86.5 37.3 24.2
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-Y85
More information about the Iaude
mailing list