MPEC 2021-G141 : 2021 GC6
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M.P.E.C. 2021-G141 Issued 2021 April 11, 06:21 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 GC6
Observations:
K21G06C* C2021 04 09.35719713 50 12.97 -22 59 34.0 21.12GVEG141G96
K21G06C C2021 04 09.36274513 50 14.04 -22 59 39.2 20.72GVEG141G96
K21G06C C2021 04 09.36830013 50 15.12 -22 59 44.3 20.47GVEG141G96
K21G06C C2021 04 09.37384913 50 16.19 -22 59 49.6 20.43GVEG141G96
K21G06C C2021 04 09.42859713 50 29.186-23 00 34.51 20.90wUEG141F51
K21G06C C2021 04 09.43958913 50 31.295-23 00 44.96 20.89wUEG141F51
K21G06C KC2021 04 09.44479313 50 30.00 -23 00 53.4 21.26GVEG141I52
K21G06C KC2021 04 09.44690213 50 30.45 -23 00 55.5 20.10GVEG141I52
K21G06C KC2021 04 09.44900613 50 30.82 -23 00 56.4 20.23GVEG141I52
K21G06C C2021 04 09.45056413 50 33.395-23 00 55.29 20.98wUEG141F51
K21G06C 2C2021 04 10.19386913 53 10.277-23 12 27.21 20.3 GVEG141J04
K21G06C 2C2021 04 10.19739213 53 10.996-23 12 30.48 20.2 GVEG141J04
K21G06C 2C2021 04 10.20092013 53 11.688-23 12 33.17 20.6 GVEG141J04
K21G06C |C2021 04 10.28469 13 53 31.04 -23 13 10.1 20.7 GVEG141807
K21G06C |C2021 04 10.28654 13 53 31.41 -23 13 11.7 20.7 GVEG141807
K21G06C |C2021 04 10.28839 13 53 31.78 -23 13 13.4 20.7 GVEG141807
K21G06C KC2021 04 10.33266513 53 42.59 -23 14 42.3 21.06GVEG141I52
K21G06C KC2021 04 10.33519213 53 43.19 -23 14 44.4 21.01GVEG141I52
K21G06C KC2021 04 10.34025113 53 44.16 -23 14 49.7 VEG141I52
K21G06C |C2021 04 11.08603 13 56 30.75 -23 25 15.2 20.9 VuEG141807
K21G06C |C2021 04 11.09012 13 56 31.61 -23 25 19.3 20.8 VuEG141807
K21G06C |C2021 04 11.09416 13 56 32.44 -23 25 23.4 20.9 VuEG141807
Observer details:
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
1.00-m f/10.0 astrograph + CCD, 0.61-m f/6.5 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 G. J. Leonard. Measurers E. J. Christensen,
G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L.
Seaman, F. C. Shelly, K. W. Wierzchos. 1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers D. Rankin, D. C. Fuls.
Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A.
Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.0-m
reflector + CCD.
J04 ESA Optical Ground Station, Tenerife. Observer P. Ruiz. Measurers M.
Micheli, D. Koschny, L. Conversi, R. Kresken, A. Knofel, M. Busch, E.
Schwab. 1.0-m f/4.4 reflector + CCD.
Orbital elements:
2021 GC6 Earth MOID = 0.1340 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 320.03128 (2000.0) P Q
n 0.29231155 Peri. 341.78432 -0.71725790 +0.69571557
a 2.2485647 Node 242.36506 -0.63371024 -0.67455881
e 0.4914744 Incl. 2.52304 -0.28974546 -0.24688106
P 3.37 H 23.50 G 0.15 U 8
Residuals in seconds of arc
210409 G96 0.1- 0.0- 210409 I52 0.4- 0.1+ 210410 I52 1.1- 0.0+
210409 G96 0.1- 0.0- 210409 F51 0.1+ 0.1+ 210410 I52 0.3+ 0.2+
210409 G96 0.0+ 0.0- 210410 J04 0.2- 0.3+ 210410 I52 0.2- 0.4-
210409 G96 0.0+ 0.3- 210410 J04 0.1- 0.0- 210411 807 0.0+ 0.1+
210409 F51 0.0- 0.1- 210410 J04 0.4- 0.3+ 210411 807 0.1+ 0.0+
210409 F51 0.0+ 0.0+ 210410 807 0.2+ 0.1- 210411 807 0.1- 0.1-
210409 I52 0.3- 0.6- 210410 807 0.2+ 0.1-
210409 I52 0.2+ 0.8- 210410 807 0.2+ 0.2-
Ephemeris:
2021 GC6 a,e,i = 2.25, 0.49, 3 q = 1.1435
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 03 12 12 42 50.7 -14 58 16 0.3089 1.2783 153.9 20.0 22.5
...
2021 03 27 13 11 34.9 -19 12 39 0.2288 1.2147 159.5 16.7 21.6
...
2021 04 04 13 32 47.4 -21 31 00 0.1966 1.1879 161.3 15.7 21.2
...
2021 04 10 13 52 30.4 -23 08 53 0.1771 1.1716 162.1 15.2 20.9
2021 04 11 13 56 09.0 -23 24 09 0.1742 1.1692 162.2 15.2 20.9
2021 04 12 13 59 54.0 -23 39 00 0.1715 1.1669 162.3 15.1 20.8
...
2021 04 18 14 24 37.6 -24 57 03 0.1575 1.1554 162.8 14.9 20.6
...
2021 04 26 15 02 47.7 -25 58 35 0.1453 1.1459 162.9 14.9 20.4
...
2021 05 11 16 17 26.9 -24 58 24 0.1427 1.1472 163.0 14.9 20.4
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-G141
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