MPEC 2021-H09 : 2021 GY12
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M.P.E.C. 2021-H09 Issued 2021 April 16, 14:34 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 GY12
Observations:
K21G12Y C2021 04 08.46144713 50 39.162+00 40 48.78 21.10GVEH009F51
K21G12Y C2021 04 08.48689713 50 36.221+00 40 44.70 21.12GVEH009F51
K21G12Y* C2021 04 14.45081613 40 05.883+00 18 12.34 22.42wUEH009F51
K21G12Y C2021 04 14.46216913 40 04.592+00 18 09.25 22.72wUEH009F51
K21G12Y C2021 04 14.47359513 40 03.282+00 18 06.32 22.58wUEH009F51
K21G12Y |C2021 04 15.22938 13 38 44.18 +00 14 58.3 22.0 GVEH009807
K21G12Y |C2021 04 15.24045 13 38 42.94 +00 14 55.2 22.1 GVEH009807
K21G12Y |C2021 04 15.25153 13 38 41.69 +00 14 52.2 22.1 GVEH009807
K21G12Y |C2021 04 16.12776 13 37 11.50 +00 10 42.3 21.5 GVEH009807
K21G12Y |C2021 04 16.13509 13 37 10.69 +00 10 40.0 21.2 GVEH009807
K21G12Y |C2021 04 16.14173 13 37 09.95 +00 10 38.0 21.8 GVEH009807
K21G12Y KC2021 04 16.18737413 37 05.20 +00 10 00.5 22.4 VuEH009H21
K21G12Y KC2021 04 16.19372813 37 04.51 +00 09 58.6 22.2 VuEH009H21
K21G12Y C2021 04 16.42397213 36 40.428+00 08 56.74 22.47wUEH009F51
K21G12Y C2021 04 16.43865313 36 38.803+00 08 52.34 22.10wUEH009F51
K21G12Y C2021 04 16.46803813 36 35.520+00 08 43.54 21.84wUEH009F51
Observer details:
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
1.00-m f/10.0 astrograph + 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.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 1.3-m f/4.0
astrograph + CCD.
Orbital elements:
2021 GY12 Earth MOID = 0.2554 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 5.61643 (2000.0) P Q
n 0.57858537 Peri. 61.52384 -0.38952739 -0.91722103
a 1.4263444 Node 51.64533 +0.80340312 -0.38272162
e 0.1451075 Incl. 6.11321 +0.45034635 -0.11058815
P 1.70 H 22.82 G 0.15 U 7
Residuals in seconds of arc
210408 F51 0.3+ 0.5- 210415 807 0.1+ 0.0 210416 H21 0.1+ 0.4+
210408 F51 0.4- 0.2+ 210415 807 0.1- 0.0 210416 F51 0.0 0.0
210414 F51 0.1+ 0.0 210416 807 0.0 0.1+ 210416 F51 0.2+ 0.1-
210414 F51 0.1+ 0.1- 210416 807 0.0 0.1- 210416 F51 0.2+ 0.2-
210414 F51 0.1- 0.1+ 210416 807 0.1- 0.2-
210415 807 0.0 0.0 210416 H21 0.0 0.4+
Ephemeris:
2021 GY12 a,e,i = 1.43, 0.15, 6 q = 1.2194
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 03 17 14 20 24.9 +01 13 56 0.4090 1.3396 141.5 27.5 22.7
...
2021 04 01 14 03 04.4 +00 58 56 0.3905 1.3706 158.8 15.3 22.3
...
2021 04 09 13 49 42.6 +00 39 15 0.3928 1.3874 167.3 9.2 22.1
...
2021 04 15 13 39 08.5 +00 15 51 0.4013 1.4001 169.9 7.2 22.1
2021 04 16 13 37 24.3 +00 11 09 0.4032 1.4022 169.8 7.3 22.1
2021 04 17 13 35 41.2 +00 06 12 0.4054 1.4043 169.5 7.5 22.1
...
2021 04 23 13 25 56.3 -00 28 24 0.4217 1.4169 165.0 10.6 22.4
...
2021 05 01 13 15 11.0 -01 26 42 0.4521 1.4337 156.6 16.2 22.8
...
2021 05 16 13 04 10.6 -03 44 45 0.5328 1.4643 141.1 25.7 23.5
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-H09
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