MPEC 2021-G189 : 2021 GZ8
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M.P.E.C. 2021-G189 Issued 2021 April 13, 16:12 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
2021 GZ8
Observations:
K21G08Z C2021 04 07.58671616 36 37.880-03 58 52.14 22.46GVEG189F51
K21G08Z C2021 04 07.59930616 36 38.668-03 59 07.79 22.52GVEG189F51
K21G08Z C2021 04 07.61184416 36 39.427-03 59 22.97 23.17GVEG189F51
K21G08Z C2021 04 07.62439116 36 40.258-03 59 39.28 22.92GVEG189F51
K21G08Z* C2021 04 10.58555816 40 05.937-05 06 02.42 22.38wUEG189F51
K21G08Z C2021 04 10.59829916 40 06.697-05 06 20.86 22.33wUEG189F51
K21G08Z C2021 04 10.62377116 40 08.249-05 06 57.62 22.67wUEG189F51
K21G08Z ^C2021 04 11.60881616 41 15.133-05 31 22.89 22.25GVEG189568
K21G08Z ^C2021 04 11.60979416 41 15.194-05 31 24.32 22.16GVEG189568
K21G08Z ^C2021 04 11.61077516 41 15.252-05 31 25.85 22.41GVEG189568
K21G08Z ^C2021 04 11.61175516 41 15.312-05 31 27.29 22.52GVEG189568
K21G08Z ^C2021 04 11.61273316 41 15.373-05 31 28.67 22.54GVEG189568
K21G08Z ^C2021 04 11.61371516 41 15.426-05 31 30.40 22.93GVEG189568
K21G08Z C2021 04 13.45984316 43 18.81 -06 20 51.2 22.9 GVEG189H01
K21G08Z C2021 04 13.46341816 43 19.02 -06 20 57.3 22.6 GVEG189H01
K21G08Z C2021 04 13.47319116 43 19.59 -06 21 13.5 21.9 GVEG189H01
Observer details:
568 Mauna Kea. Observers R. Wainscoat, C. Crowder, T. Burdullis. Measurers
R. Weryk, R. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + 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, K. Chambers, T. de Boer, L. Denneau, J. Fairlamb, H.
Flewelling, C.-C. Lin, E. Magnier. 1.8-m Ritchey-Chretien + CCD.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 Ritchey-Chretien + CCD.
Orbital elements:
2021 GZ8 Earth MOID = 0.1503 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 236.61504 (2000.0) P Q
n 0.56910390 Peri. 262.77273 +0.61075055 +0.73990021
a 1.4421430 Node 48.91439 -0.49406778 +0.63441646
e 0.3454515 Incl. 21.97225 -0.61877362 +0.22374860
P 1.73 H 22.4 G 0.15 U 7
Residuals in seconds of arc
210407 F51 0.3+ 0.1- 210410 F51 0.0 0.1+ 210411 568 0.0 0.1-
210407 F51 0.1+ 0.0 210411 568 0.0 0.0 210413 H01 0.0 0.0
210407 F51 0.4- 0.4+ 210411 568 0.0 0.0 210413 H01 0.0 0.1-
210407 F51 0.1+ 0.3- 210411 568 0.0 0.0 210413 H01 0.1- 0.1+
210410 F51 0.1+ 0.0 210411 568 0.0 0.0
210410 F51 0.1- 0.0 210411 568 0.1+ 0.2+
Ephemeris:
2021 GZ8 a,e,i = 1.44, 0.35, 22 q = 0.9440
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 03 14 16 04 04.1 +01 14 42 0.7677 1.4737 112.9 38.4 24.2
...
2021 03 29 16 24 46.4 -01 18 16 0.5898 1.3992 121.4 37.5 23.5
...
2021 04 06 16 34 44.9 -03 27 00 0.5003 1.3581 126.3 36.4 23.0
...
2021 04 12 16 41 41.7 -05 41 16 0.4364 1.3269 130.3 35.2 22.7
2021 04 13 16 42 48.5 -06 07 53 0.4260 1.3217 131.0 35.0 22.6
2021 04 14 16 43 54.5 -06 35 57 0.4157 1.3164 131.7 34.7 22.5
...
2021 04 20 16 50 16.7 -10 00 11 0.3562 1.2849 136.0 32.9 22.1
...
2021 04 28 16 58 20.6 -16 47 09 0.2836 1.2427 142.1 29.9 21.4
...
2021 05 13 17 15 08.6 -42 28 04 0.1816 1.1647 145.5 29.4 20.3
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-G189
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