IAA RAS IAA Minor Planet Database

2021 CG9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5303836235 ± 2.67e-05
Semi-major axis (a)2.2989228444 AU ± 1.47e-04
Inclination (i)14.47154136° ± 4.71e-04
Long. of Asc. Node (Ω)333.66200206° ± 2.16e-05
Arg. of Perihelion (ω)197.22523683° ± 4.84e-05
Mean Anomaly (M)125.81529776° ± 4.60e-02
Mean Motion (n)0.2827650194°/day ± 2.71e-05
Perihelion dist (q)1.07961182 AU ± 9.23e-05
Aphelion dist (Q)3.51823387 AU ± 2.33e-04
Orbital Period3.48567261 yr ± 3.34e-04
Physical Parameters
H (abs. magnitude)23.18
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.346″
Uncertainty2
Orbit TypeAmor
MOID0.099824 AU
Observations Used94
Oppositions1
Arc Total2021-2021
First Observation Used2021-01-12
Last Observation Used2021-03-11
Observations (98)
Date Type RA Dec Mag Band Observatory
2021-01-12 12:35:30 C 10 09 33.224 +49 49 14.64 – V F51
2021-01-12 12:53:47 C 10 09 34.449 +49 49 09.98 – V F51
2021-01-23 11:24:56 C 10 28 57.689 +47 24 02.50 – V F51
2021-01-23 11:42:37 C 10 28 58.691 +47 23 47.14 – V F51
2021-01-23 12:18:03 C 10 29 00.665 +47 23 15.73 – V F51
2021-02-01 10:59:15 C 10 43 19.127 +42 27 32.18 – V F52
2021-02-01 11:18:36 C 10 43 20.067 +42 26 55.44 – V F52
2021-02-09 07:54:48 C 10 54 48.95 +33 49 57.6 – V 703
2021-02-09 08:02:19 C 10 54 49.29 +33 49 29.3 – V 703
2021-02-09 08:17:23 C 10 54 49.91 +33 48 33.6 – V 703
2021-02-15 01:17:00 C 11 02 40.32 +23 07 47.2 – o K88
2021-02-15 01:18:01 C 11 02 40.41 +23 07 41.0 – o K88
2021-02-15 01:19:07 C 11 02 40.41 +23 07 34.4 – o K88
2021-02-15 01:46:00 C 11 02 41.82 +23 05 02.4 – V L01
2021-02-15 01:47:53 C 11 02 41.91 +23 04 51.5 – V L01
2021-02-15 01:50:44 C 11 02 42.27 +23 04 28.3 – V 033
2021-02-15 01:51:19 C 11 02 42.29 +23 04 25.0 – V 033
2021-02-15 01:51:55 C 11 02 42.30 +23 04 21.6 – V 033
2021-02-15 01:52:41 C 11 02 42.32 +23 04 17.2 – V 033
2021-02-15 01:53:28 C 11 02 42.15 +23 04 19.2 – V L01
2021-02-15 01:57:12 C 11 02 42.29 +23 03 57.4 – V L01
2021-02-15 02:01:06 C 11 02 42.44 +23 03 35.1 – V L01
2021-02-15 02:38:34 C 11 02 43.87 +22 59 52.7 – o K88
2021-02-15 02:40:07 C 11 02 43.91 +22 59 43.9 – o K88
2021-02-15 02:41:40 C 11 02 43.95 +22 59 35.0 – o K88
2021-02-15 02:59:02 C 11 02 45.03 +22 57 59.3 – V K83
2021-02-15 03:01:54 C 11 02 45.12 +22 57 42.9 – V K83
2021-02-15 03:04:46 C 11 02 45.20 +22 57 26.4 – V K83
2021-02-15 03:10:30 C 11 02 45.48 +22 56 52.2 – V K83
2021-02-15 03:13:22 C 11 02 45.64 +22 56 35.6 – V K83
2021-02-15 03:19:06 C 11 02 45.90 +22 56 02.2 – V K83
2021-02-15 04:22:27 C 11 02 48.71 +22 49 43.3 – o K88
2021-02-15 04:23:23 C 11 02 48.73 +22 49 37.8 – o K88
2021-02-15 04:26:11 C 11 02 48.90 +22 49 21.3 – o K88
2021-02-15 05:52:25 C 11 03 00.17 +22 41 22.5 – V I52
2021-02-15 05:52:42 C 11 03 00.22 +22 41 20.9 – V I52
2021-02-15 06:01:13 C 11 03 00.58 +22 40 31.8 – V I52
2021-02-15 06:01:29 C 11 03 00.56 +22 40 29.3 – V I52
2021-02-15 15:00:56 C 11 03 31.83 +21 46 53.5 – V N88
2021-02-15 15:01:49 C 11 03 31.90 +21 46 48.0 – V N88
2021-02-15 15:02:42 C 11 03 31.98 +21 46 43.5 – V N88
2021-02-15 15:03:33 C 11 03 32.02 +21 46 38.2 – V N88
2021-02-15 15:04:20 C 11 03 32.06 +21 46 33.2 – V N88
2021-02-16 10:27:34 C 11 04 36.13 +19 47 30.4 – V T08
2021-02-16 10:30:55 C 11 04 36.21 +19 47 09.4 – V T08
2021-02-16 10:38:24 C 11 04 36.52 +19 46 21.4 – V T08
2021-02-16 11:02:52 C 11 04 37.32 +19 43 46.6 – V T08
2021-02-18 00:32:10 C 11 06 44.35 +15 31 53.4 – V 204
2021-02-18 00:41:49 C 11 06 44.76 +15 30 45.2 – V 204
2021-02-18 00:51:29 C 11 06 45.12 +15 29 37.3 – V 204