MPEC 2021-G178 : 2021 GC8
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M.P.E.C. 2021-G178 Issued 2021 April 12, 20:51 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 GC8
Observations:
K21G08C* C2021 04 11.23668410 06 57.62 +24 07 37.4 VEG178V00
K21G08C C2021 04 11.23775010 06 58.08 +24 07 39.1 22.25GVEG178V00
K21G08C C2021 04 11.24144610 06 59.86 +24 07 41.6 VEG178V00
K21G08C C2021 04 11.24250610 07 00.36 +24 07 43.0 21.98GVEG178V00
K21G08C C2021 04 11.24619910 07 02.17 +24 07 45.6 21.96GVEG178V00
K21G08C C2021 04 11.24725410 07 02.67 +24 07 46.7 22.31GVEG178V00
K21G08C C2021 04 11.25095910 07 04.49 +24 07 49.3 22.09GVEG178V00
K21G08C C2021 04 11.25202210 07 04.99 +24 07 50.2 21.76GVEG178V00
K21G08C mC2021 04 11.29214810 07 25.99 +24 08 11.7 21.94GVEG178V00
K21G08C mC2021 04 11.29302410 07 26.46 +24 08 11.7 22.26GVEG178V00
K21G08C mC2021 04 11.29389810 07 26.98 +24 08 11.9 22.42GVEG178V00
K21G08C mC2021 04 11.29477310 07 27.46 +24 08 12.3 22.46GVEG178V00
K21G08C mC2021 04 12.15947410 25 51.49 +24 39 09.0 21.94GVEG178G96
K21G08C mC2021 04 12.16022710 25 52.53 +24 39 11.6 20.90GVEG178G96
K21G08C mC2021 04 12.16097910 25 53.52 +24 39 14.1 20.82GVEG178G96
K21G08C mC2021 04 12.16173210 25 54.51 +24 39 16.2 21.47GVEG178G96
K21G08C 1C2021 04 12.82347 10 57 12.85 +25 01 32.4 20.6 VVEG178033
K21G08C 1C2021 04 12.82387 10 57 14.41 +25 01 33.8 20.7 VVEG178033
K21G08C 1C2021 04 12.82427 10 57 15.98 +25 01 34.9 20.9 VVEG178033
K21G08C 1C2021 04 12.82467 10 57 17.51 +25 01 36.0 20.7 VVEG178033
K21G08C 1C2021 04 12.82508 10 57 19.08 +25 01 37.2 20.8 VVEG178033
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, U. Laux, F. Ludwig, B. Stecklum. Measurer B. Stecklum. 1.34-m
f/3 Schmidt + 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.
V00 Kitt Peak-Bok. Observer H. Groeller. Measurers M. J. Brucker, E. J.
Christensen, C. E. Woodward, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. S.
McMillan, T. A. Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W.
Wierzchos. 2.25-m reflector + CCD.
Orbital elements:
2021 GC8 Earth MOID = 0.0006 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Pike
M 308.49679 (2000.0) P Q
n 0.40465938 Peri. 189.18751 -0.81907801 +0.57358337
a 1.8102684 Node 25.82196 -0.52477871 -0.74163004
e 0.4484796 Incl. 1.40042 -0.23177254 -0.34783186
P 2.44 H 30.40 G 0.15 U 7
Residuals in seconds of arc
210411 V00 0.3+ 0.5- 210411 V00 0.3- 0.0- 210412 G96 0.1+ 0.2+
210411 V00 0.3- 0.3+ 210411 V00 0.2+ 0.3+ 210412 G96 0.1- 0.0+
210411 V00 0.1- 0.3- 210411 V00 0.0- 0.0- 210412 033 0.2- 0.1-
210411 V00 0.2- 0.1+ 210411 V00 0.3+ 0.1- 210412 033 0.0- 0.1+
210411 V00 0.1+ 0.2- 210411 V00 0.3+ 0.0- 210412 033 0.3+ 0.1-
210411 V00 0.1- 0.1+ 210412 G96 0.4- 0.3- 210412 033 0.1+ 0.2-
210411 V00 0.0- 0.1- 210412 G96 0.2+ 0.0- 210412 033 0.1- 0.3-
Ephemeris:
2021 GC8 a,e,i = 1.81, 0.45, 1 q = 0.9984
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 03 13 09 49 12.8 +21 06 34 0.1238 1.1020 149.2 27.5 27.3
...
2021 03 28 09 41 20.1 +22 30 56 0.06454 1.0426 132.4 45.0 26.3
...
2021 04 05 09 43 26.5 +23 05 00 0.03405 1.0202 124.8 53.6 25.1
...
2021 04 11 10 04 24.6 +24 03 56 0.01128 1.0083 122.9 56.6 22.7
2021 04 12 10 21 12.9 +24 35 12 0.0075171.0067 125.0 54.7 21.8
2021 04 13 11 11 45.8 +25 23 34 0.0038341.0053 132.8 47.1 20.1
...
2021 04 19 21 32 05.6 -22 47 35 0.01944 0.9982 71.0 107.9 25.9
...
2021 04 27 21 44 59.3 -23 11 18 0.04958 0.9957 76.1 101.1 27.5
...
2021 05 12 21 52 49.6 -23 00 27 0.1034 1.0132 88.7 85.4 28.5
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-G178
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