MPEC 2023-H38 : 2021 GK2
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M.P.E.C. 2023-H38 Issued 2023 April 17, 14:10 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@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 GK2
Revision to MPEC 2021-G62
Additional Observations:
K21G02K C2010 04 10.59754614 33 46.808-05 08 20.66 19.49GVEH038F51
K21G02K C2010 04 12.53166414 08 40.255-04 45 22.96 19.40GVEH038F51
K21G02K C2010 04 12.54182114 08 32.324-04 45 15.19 19.60GVEH038F51
K21G02K C2010 04 18.38855613 02 59.478-03 34 09.52 19.67GVEH038F51
K21G02K C2010 04 18.39707413 02 54.440-03 34 03.88 20.15GVEH038F51
K21G02K C2021 04 11.32160512 38 07.342+13 47 32.99 19.31GVEH038F51
K21G02K C2021 04 11.33278612 37 58.626+13 47 04.76 19.34GVEH038F51
K21G02K C2021 04 11.34397712 37 49.901+13 46 36.41 19.31GVEH038F51
K21G02K C2021 04 15.28990811 58 36.067+11 12 49.63 19.86GVEH038F51
K21G02K KC2023 04 16.46041115 53 28.220-23 58 50.20 20.95GVEH038V06
K21G02K KC2023 04 16.46410315 53 26.550-23 58 52.50 20.85GVEH038V06
K21G02K KC2023 04 16.46779715 53 24.860-23 58 55.10 21.87GVEH038V06
K21G02K KC2023 04 16.47149015 53 23.210-23 58 58.30 20.62GVEH038V06
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
V06 Catalina Sky Survey-Kuiper. Observer J. B. Fazekas. Measurers E. J.
Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J. Leonard, D.
Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W. Wierzchos. 1.55-m
reflector + 1K CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
100410 F51 0.16+ 0.12+ 230416 V06 0.01+ 0.01+ MPO622433 -0.00 days
Orbital elements:
2021 GK2 Earth MOID = 0.0585 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 80.87976 (2000.0) P Q
n 1.52097417 Peri. 10.59414 +0.77798881 -0.62218301
a 0.7488385 Node 28.46406 +0.56220935 +0.62739552
e 0.6096813 Incl. 10.55473 +0.28045330 +0.46825545
P 0.65 H 23.27 G 0.15 U 0
Residuals in seconds of arc
100410 F51 0.3- 0.3+ 210405 J95 0.3+ 0.1- 210409 K88 0.1+ 0.2-
100412 F51 0.3- 0.1- 210405 Z99 0.1- 0.2- 210409 703 1.1+ 0.6+
100412 F51 0.1+ 0.0 210405 J95 0.2+ 0.2+ 210409 703 0.8+ 0.8-
100418 F51 0.2+ 0.1+ 210406 W34 0.4- 0.7- 210409 703 0.0 0.7+
100418 F51 0.7+ 0.0 210406 W34 0.1- 0.6- 210409 703 0.2- 0.2-
210403 703 0.2+ 1.1- 210406 W34 0.7+ 0.8- 210409 I52 0.2- 0.6-
210403 703 0.3- 0.4- 210406 858 0.2- 0.2- 210409 I52 0.7+ 0.2-
210405 G96 0.1+ 0.0 210406 858 0.1- 0.2+ 210409 I52 0.2+ 0.1+
210405 G96 0.3+ 0.2- 210406 858 0.2- 0.2+ 210409 I52 0.3- 0.2+
210405 G96 0.1- 0.1- 210406 I52 0.6- 0.3- 210409 T08 0.7+ 0.3+
210405 T08 0.8- 0.3+ 210406 I52 0.2- 0.2- 210409 T08 0.2- 0.3-
210405 T08 0.1+ 0.4- 210406 I52 0.7+ 0.1+ 210409 T08 0.3- 0.4+
210405 H01 0.0 0.0 210406 H21 0.1- 0.1+ 210409 T08 0.2+ 0.2+
210405 H01 0.0 0.0 210406 H21 0.3- 0.2- 210411 F51 0.1- 0.0
210405 H01 0.0 0.1- 210406 H21 0.1- 0.1- 210411 F51 0.1- 0.0
210405 T08 0.6- 0.3+ 210406 G96 0.3+ 0.0 210411 F51 0.1- 0.0
210405 H01 0.0 0.0 210406 G96 0.1- 0.1- 210413 033 0.3- 0.0
210405 T08 0.7+ 0.3+ 210406 G96 (1.3- 0.0 ) 210413 033 0.3- 0.1+
210405 V06 0.3+ 0.1- 210406 G96 0.1+ 0.0 210413 033 0.1+ 0.0
210405 V06 0.3+ 0.2- 210406 658 1.2- 1.1+ 210413 I52 0.2- 0.1+
210405 V06 0.2- 0.1+ 210406 658 1.0- 0.8+ 210413 I52 0.3+ 0.1+
210405 V06 0.2- 0.1+ 210406 658 0.8- 0.6+ 210413 I52 0.0 0.4-
210405 N88 0.3+ 0.2- 210406 658 0.6- 0.6+ 210413 I52 0.1- 0.1-
210405 N88 0.3+ 0.1- 210406 658 0.5- 0.5+ 210415 F51 0.1- 0.0
210405 N88 0.1- 0.2- 210406 658 0.5- 0.2+ 210418 807 0.1- 0.1-
210405 C43 0.2- 0.3- 210407 G96 0.5- 0.0 210418 807 0.2- 0.3-
210405 C43 0.2+ 0.0 210407 G96 0.1- 0.0 210418 807 0.4- 0.2-
210405 C43 0.3+ 0.6+ 210407 G96 0.4- 0.0 210420 I52 0.3+ 0.2+
210405 C43 0.3+ 0.2+ 210407 G96 0.1+ 0.0 210420 I52 0.2+ 0.1-
210405 Z99 0.1- 0.1+ 210408 I52 0.0 0.0 210420 I52 0.2- 0.3+
210405 Z99 0.0 0.1- 210408 I52 0.1- 0.0 210420 I52 0.1+ 0.5+
210405 J95 0.1- 0.0 210408 I52 0.1+ 0.1- 230416 V06 0.0 0.2+
210405 Z99 0.0 0.1+ 210408 I52 0.1+ 0.2+ 230416 V06 0.0 0.3+
210405 J95 0.0 0.2+ 210409 K88 0.5+ 0.2+ 230416 V06 0.2- 0.1+
210405 Z99 0.0 0.2- 210409 K88 0.5+ 0.2+ 230416 V06 0.0 0.8-
Ephemeris:
2021 GK2 a,e,i = 0.75, 0.61, 11 q = 0.2923
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 03 18 17 35 09.8 -17 19 17 0.3783 1.0814 92.8 66.8 23.7
...
2023 04 02 17 06 01.6 -20 25 08 0.2943 1.1520 114.3 52.2 22.8
...
2023 04 10 16 33 34.9 -22 28 12 0.2514 1.1774 129.4 41.1 22.2
...
2023 04 16 15 56 49.0 -23 53 00 0.2248 1.1911 143.3 30.3 21.7
2023 04 17 15 49 30.1 -24 04 11 0.2211 1.1929 145.8 28.2 21.6
2023 04 18 15 41 51.0 -24 14 01 0.2176 1.1946 148.3 26.2 21.5
...
2023 04 24 14 49 53.1 -24 32 51 0.2034 1.2022 163.9 13.4 21.0
...
2023 05 02 13 34 51.0 -22 40 03 0.2044 1.2053 164.0 13.3 21.0
...
2023 05 17 11 55 18.7 -15 55 13 0.2600 1.1898 128.2 41.9 22.4
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-H38
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