MPEC 2021-G222 : 2021 GF11
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M.P.E.C. 2021-G222 Issued 2021 April 15, 21:51 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 GF11
Observations:
K21G11F C2021 04 04.44923 14 58 47.57 -16 46 20.0 21.0 GVEG222G96
K21G11F C2021 04 04.45964 14 58 35.68 -16 44 59.6 20.8 GVEG222G96
K21G11F* C2021 04 14.45338813 14 12.977-02 52 06.46 21.76wUEG222F51
K21G11F C2021 04 14.46477213 14 09.223-02 51 35.28 21.05wUEG222F51
K21G11F C2021 04 14.48759513 14 01.731-02 50 33.44 21.58wUEG222F51
K21G11F |C2021 04 15.18066 13 10 30.48 -02 19 51.2 21.4 GVEG222807
K21G11F |C2021 04 15.18262 13 10 29.87 -02 19 46.4 21.6 GVEG222807
K21G11F |C2021 04 15.18497 13 10 29.16 -02 19 40.3 21.5 GVEG222807
K21G11F KC2021 04 15.21958413 10 19.13 -02 18 45.6 21.7 VuEG222H21
K21G11F KC2021 04 15.23050513 10 15.89 -02 18 17.6 21.7 VuEG222H21
K21G11F ^C2021 04 15.39356813 09 28.750-02 11 24.00 21.95GVEG222568
K21G11F ^C2021 04 15.39454713 09 28.465-02 11 21.60 22.05GVEG222568
K21G11F ^C2021 04 15.39553013 09 28.168-02 11 19.14 22.00GVEG222568
Observer details:
568 Mauna Kea. Observers R. Wainscoat, L. Wells, T. Burdullis. Measurers R.
Weryk, R. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD.
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, T. Lowe, A. Schultz, M.
Willman. Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J.
Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer K. W. Wierzchos. Measurers E. J.
Christensen, B. Gray, D. Rankin, F. C. Shelly. 1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.81-m f/4.0
astrograph + CCD.
Orbital elements:
2021 GF11 Earth MOID = 0.0184 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 335.28353 (2000.0) P Q
n 0.40537129 Peri. 222.21701 +0.49012057 -0.86800499
a 1.8081483 Node 198.87378 +0.85101535 +0.49628686
e 0.8851694 Incl. 14.26004 +0.18855954 +0.01633099
P 2.43 H 23.35 G 0.15 U 9
Residuals in seconds of arc
210404 G96 0.0 0.0 210415 807 0.0 0.0 210415 568 0.1- 0.0
210404 G96 (0.8+ 1.5-) 210415 807 0.2- 0.2- 210415 568 0.1+ 0.0
210414 F51 0.1+ 0.1+ 210415 807 0.1- 0.0 210415 568 0.0 0.0
210414 F51 0.1+ 0.1+ 210415 H21 0.1- 0.2-
210414 F51 (0.4+ 0.3-) 210415 H21 0.8+ 0.4+
Ephemeris:
2021 GF11 a,e,i = 1.81, 0.89, 14 q = 0.2076
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 03 16 21 47 38.7 -23 15 55 0.2695 0.7898 35.2 133.5 26.1
...
2021 03 31 16 48 29.2 -26 34 48 0.1366 1.0661 116.1 57.3 21.2
...
2021 04 08 14 05 42.9 -10 04 30 0.2016 1.1972 165.1 12.4 21.0
...
2021 04 14 13 16 41.8 -03 13 08 0.2883 1.2897 173.2 5.3 21.6
2021 04 15 13 11 24.4 -02 27 47 0.3042 1.3046 171.1 6.8 21.9
2021 04 16 13 06 39.8 -01 47 08 0.3204 1.3194 169.0 8.4 22.1
...
2021 04 22 12 46 31.3 +01 04 02 0.4231 1.4060 157.8 15.7 23.1
...
2021 04 30 12 32 46.9 +02 57 07 0.5707 1.5154 146.3 21.6 24.1
...
2021 05 15 12 24 59.7 +03 56 02 0.8704 1.7046 129.8 27.1 25.4
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-G222
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