MPEC 2021-C332 : 2021 CG9
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M.P.E.C. 2021-C332 Issued 2021 February 15, 18:54 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 CG9
Observations:
K21C09G C2021 01 12.52465310 09 33.224+49 49 14.64 22.14GVEC332F51
K21C09G C2021 01 12.53735910 09 34.449+49 49 09.98 22.15GVEC332F51
K21C09G C2021 01 23.47564910 28 57.689+47 24 02.50 22.00GVEC332F51
K21C09G C2021 01 23.48793510 28 58.691+47 23 47.14 21.35GVEC332F51
K21C09G C2021 01 23.51254610 29 00.665+47 23 15.73 21.58GVEC332F51
K21C09G C2021 02 01.45781410 43 19.127+42 27 32.18 20.61GVEC332F52
K21C09G C2021 02 01.47125810 43 20.067+42 26 55.44 21.23GVEC332F52
K21C09G C2021 02 09.32973 10 54 48.95 +33 49 57.6 20.6 GVEC332703
K21C09G C2021 02 09.33495 10 54 49.29 +33 49 29.3 20.4 GVEC332703
K21C09G C2021 02 09.34541 10 54 49.91 +33 48 33.6 21.1 GVEC332703
K21C09G* C2021 02 15.05348 11 02 40.32 +23 07 47.2 18.6 RoEC332K88
K21C09G C2021 02 15.05418 11 02 40.41 +23 07 41.0 18.5 RoEC332K88
K21C09G C2021 02 15.05495 11 02 40.41 +23 07 34.4 18.8 RoEC332K88
K21C09G KC2021 02 15.07362111 02 41.82 +23 05 02.4 19.3 GVEC332L01
K21C09G KC2021 02 15.07492111 02 41.91 +23 04 51.5 19.3 GVEC332L01
K21C09G 1C2021 02 15.07690 11 02 42.27 +23 04 28.3 20.2 VVEC332033
K21C09G 1C2021 02 15.07731 11 02 42.29 +23 04 25.0 19.9 VVEC332033
K21C09G 1C2021 02 15.07772 11 02 42.30 +23 04 21.6 20.3 VVEC332033
K21C09G 1C2021 02 15.07826 11 02 42.32 +23 04 17.2 20.2 VVEC332033
K21C09G KC2021 02 15.07879811 02 42.15 +23 04 19.2 19.4 GVEC332L01
K21C09G KC2021 02 15.08139611 02 42.29 +23 03 57.4 19.3 GVEC332L01
K21C09G KC2021 02 15.08409811 02 42.44 +23 03 35.1 19.4 GVEC332L01
K21C09G C2021 02 15.11012 11 02 43.87 +22 59 52.7 18.6 RoEC332K88
K21C09G C2021 02 15.11120 11 02 43.91 +22 59 43.9 18.6 RoEC332K88
K21C09G C2021 02 15.11227 11 02 43.95 +22 59 35.0 18.7 RoEC332K88
K21C09G KC2021 02 15.12433 11 02 45.03 +22 57 59.3 19.2 GVEC332K83
K21C09G KC2021 02 15.12633 11 02 45.12 +22 57 42.9 19.5 GVEC332K83
K21C09G KC2021 02 15.12832 11 02 45.20 +22 57 26.4 19.5 GVEC332K83
K21C09G KC2021 02 15.13230 11 02 45.48 +22 56 52.2 19.1 GVEC332K83
K21C09G KC2021 02 15.13429 11 02 45.64 +22 56 35.6 20.8 GVEC332K83
K21C09G KC2021 02 15.13827 11 02 45.90 +22 56 02.2 19.5 GVEC332K83
K21C09G C2021 02 15.18226 11 02 48.71 +22 49 43.3 18.7 RoEC332K88
K21C09G C2021 02 15.18291 11 02 48.73 +22 49 37.8 18.8 RoEC332K88
K21C09G C2021 02 15.18486 11 02 48.90 +22 49 21.3 18.8 RoEC332K88
K21C09G HC2021 02 15.24474411 03 00.17 +22 41 22.5 20.40GVEC332I52
K21C09G HC2021 02 15.24493711 03 00.22 +22 41 20.9 20.18GVEC332I52
K21C09G HC2021 02 15.25085311 03 00.58 +22 40 31.8 19.83GVEC332I52
K21C09G HC2021 02 15.25104111 03 00.56 +22 40 29.3 19.86GVEC332I52
K21C09G C2021 02 15.62565 11 03 31.83 +21 46 53.5 20.0 GVEC332N88
K21C09G C2021 02 15.62627 11 03 31.90 +21 46 48.0 19.6 GVEC332N88
K21C09G C2021 02 15.62688 11 03 31.98 +21 46 43.5 19.2 GVEC332N88
K21C09G C2021 02 15.62747 11 03 32.02 +21 46 38.2 19.3 GVEC332N88
K21C09G C2021 02 15.62802 11 03 32.06 +21 46 33.2 19.7 GVEC332N88
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
703 Catalina Sky Survey. Observer R. A. Kowalski. Measurers E. J.
Christensen, B. Gray, D. Rankin, F. C. Shelly. 0.68-m Schmidt + 10K 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. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, A. Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station. 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. 1.0-m
reflector + CCD.
K83 Beppe Forti Astronomical Observatory, Montelupo. Observers M. Tombelli,
A. Mazzanti, E. Venticinque. Measurers M. Lombardo, M. Iozzi, G.
Interrante, M. Tombelli, T. Bitossi, F. Bernardi. 0.40-m f/8 Ritchey-
Chretien + CCD.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
N88 Xingming Observatory #3, Nanshan. Observer X. Gao. Measurer Q.-Z. Ye.
0.6-m f/8 Ritchey-Chretien + CCD.
Orbital elements:
2021 CG9 Earth MOID = 0.0891 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 336.83921 (2000.0) P Q
n 0.28357496 Peri. 196.74508 -0.98268491 -0.14862673
a 2.2945145 Node 333.92166 +0.18528002 -0.78406945
e 0.5339784 Incl. 14.57670 +0.00129576 -0.60261529
P 3.48 H 23.2 G 0.15 U 5
Residuals in seconds of arc
210112 F51 0.0 0.0 210215 033 0.1- 0.5- 210215 K83 0.3+ 0.1+
210112 F51 0.0 0.1+ 210215 033 0.1- 0.4- 210215 K88 0.1- 0.2+
210123 F51 0.1- 0.2- 210215 033 0.4- 0.3- 210215 K88 0.4- 0.2+
210123 F51 0.0 0.0 210215 033 0.5- 0.2- 210215 K88 0.0 0.2+
210123 F51 0.1- 0.2+ 210215 L01 0.2+ 0.0 210215 I52 0.4- 0.2+
210201 F52 0.3+ 0.5- 210215 L01 0.0 0.1- 210215 I52 0.1+ 0.2+
210201 F52 0.6+ 0.2- 210215 L01 0.2- 0.2+ 210215 I52 0.2+ 0.3+
210209 703 0.2- 0.9+ 210215 K88 0.7+ 0.2+ 210215 I52 0.3- 0.6-
210209 703 0.1+ 0.1+ 210215 K88 0.3+ 0.4+ 210215 N88 0.6- 0.3-
210209 703 0.1+ 0.2- 210215 K88 0.1- 0.5+ 210215 N88 0.3- 0.6-
210215 K88 0.2+ 0.4+ 210215 K83 0.3+ 0.2- 210215 N88 0.2+ 0.1+
210215 K88 0.9+ 0.1+ 210215 K83 0.1- 0.2+ 210215 N88 0.2+ 0.1-
210215 K88 0.2+ 0.1- 210215 K83 0.7- 0.5+ 210215 N88 0.2+ 0.4-
210215 L01 0.1- 0.1- 210215 K83 0.3- 0.2-
210215 L01 0.1+ 0.1- 210215 K83 0.2+ 0.1-
Ephemeris:
2021 CG9 a,e,i = 2.29, 0.53, 15 q = 1.0693
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 01 16 10 15 56.5 +49 20 07 0.3054 1.2325 139.7 31.1 22.4
...
2021 01 31 10 41 03.3 +43 31 48 0.2009 1.1563 145.5 28.9 21.3
...
2021 02 08 10 52 55.0 +35 42 01 0.1533 1.1238 151.7 24.6 20.5
...
2021 02 14 11 01 15.1 +25 28 33 0.1236 1.1039 159.2 18.5 19.8
2021 02 15 11 02 37.0 +23 15 48 0.1193 1.1010 160.6 17.3 19.7
2021 02 16 11 03 58.8 +20 53 03 0.1153 1.0982 162.1 16.1 19.6
...
2021 02 22 11 12 12.5 +03 02 16 0.09775 1.0840 165.3 13.3 19.1
...
2021 03 02 11 23 43.3 -25 49 24 0.09655 1.0723 145.9 31.2 19.6
...
2021 03 17 11 47 57.9 -59 36 22 0.1473 1.0740 118.9 54.2 21.2
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-C332
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