2021 CO4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7059771000
Semi-major axis (a)2.3218340000 AU
Inclination (i)2.67926000°
Long. of Asc. Node (Ω)212.00565000°
Arg. of Perihelion (ω)12.43678000°
Mean Anomaly (M)110.63298000°
Mean Motion (n)0.2785847500°/day
Perihelion dist (q)0.68267240 AU
Aphelion dist (Q)3.96099560 AU
Orbital Period3.53790970 yr
Physical Parameters
H (abs. magnitude)23.90
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.320″
Uncertainty6
Orbit TypeApollo
MOID0.041067 AU
Observations Used40
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-02-18
Observations (40)
Date Type RA Dec Mag Band Observatory
2021-02-07 10:22:20 C 09 10 30.116 -05 40 43.57 V F51
2021-02-09 06:02:48 C 09 06 17.85 -08 27 35.7 V G96
2021-02-09 06:11:33 C 09 06 16.73 -08 28 14.1 V G96
2021-02-09 06:20:17 C 09 06 15.58 -08 28 52.9 V G96
2021-02-09 06:29:06 C 09 06 14.43 -08 29 32.1 V G96
2021-02-09 09:22:47 C 09 05 54.813 -08 42 14.54 V F51
2021-02-09 09:24:39 C 09 05 51.19 -08 42 34.3 V I52
2021-02-09 09:27:13 C 09 05 50.85 -08 42 45.9 V I52
2021-02-09 09:29:47 C 09 05 50.53 -08 42 57.4 V I52
2021-02-09 09:32:21 C 09 05 50.18 -08 43 08.7 V I52
2021-02-09 21:55:08 C 09 04 25.549 -09 41 30.34 V J04
2021-02-09 21:57:15 C 09 04 25.237 -09 41 40.59 V J04
2021-02-09 21:59:23 C 09 04 24.947 -09 41 51.26 V J04
2021-02-09 22:01:43 C 09 04 22.23 -09 42 26.1 V 033
2021-02-09 22:03:53 C 09 04 21.94 -09 42 36.7 V 033
2021-02-09 22:06:04 C 09 04 21.62 -09 42 47.6 V 033
2021-02-09 22:08:34 C 09 04 21.28 -09 42 59.9 V 033
2021-02-10 03:05:11 C 09 03 44.13 -10 07 39.1 V W33
2021-02-10 03:14:13 C 09 03 42.88 -10 08 26.4 V W33
2021-02-10 03:23:17 C 09 03 41.46 -10 09 12.6 V W33
2021-02-10 05:07:12 C 09 03 27.77 -10 18 09.1 V I52
2021-02-10 05:10:02 C 09 03 27.31 -10 18 24.2 V I52
2021-02-10 05:15:42 C 09 03 26.48 -10 18 53.3 V I52
2021-02-12 05:52:37 C 08 55 10.83 -15 29 42.1 V I52
2021-02-12 05:53:13 C 08 55 10.68 -15 29 47.3 V I52
2021-02-12 05:53:49 C 08 55 10.53 -15 29 51.4 V I52
2021-02-12 05:54:25 C 08 55 10.40 -15 29 56.7 V I52
2021-02-12 12:58:46 C 08 53 34.16 -16 24 57.2 V 474
2021-02-12 13:00:33 C 08 53 33.73 -16 25 11.6 V 474
2021-02-12 13:01:27 C 08 53 33.48 -16 25 19.1 V 474
2021-02-12 13:03:13 C 08 53 33.05 -16 25 33.8 V 474
2021-02-17 11:10:34 C 07 40 41.25 -47 54 46.4 V 474
2021-02-17 11:11:10 C 07 40 40.27 -47 55 02.2 V 474
2021-02-17 11:17:30 C 07 40 29.55 -47 57 49.5 V 474
2021-02-17 11:18:06 C 07 40 28.58 -47 58 05.9 V 474
2021-02-18 09:41:58 C 06 49 52.16 -58 13 46.8 V 474
2021-02-18 09:42:35 C 06 49 50.20 -58 14 03.9 V 474
2021-02-18 09:43:12 C 06 49 48.25 -58 14 20.6 V 474
2021-02-18 09:44:28 C 06 49 44.22 -58 14 55.4 V 474
2021-02-18 09:45:05 C 06 49 42.24 -58 15 11.9 V 474