2021 CH2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1256290255 ± 1.50e-07
Semi-major axis (a)1.1386700094 AU ± 1.76e-07
Inclination (i)19.91898559° ± 2.01e-05
Long. of Asc. Node (Ω)319.35321536° ± 3.61e-06
Arg. of Perihelion (ω)292.41797431° ± 1.03e-05
Mean Anomaly (M)244.35713588° ± 3.13e-04
Mean Motion (n)0.8111766724°/day ± 1.88e-07
Perihelion dist (q)0.99562001 AU ± 2.30e-07
Aphelion dist (Q)1.28172001 AU ± 2.61e-07
Orbital Period1.21505748 yr ± 2.82e-07
Physical Parameters
H (abs. magnitude)21.72
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.178″
Uncertainty0
Orbit TypeApollo
MOID0.051204 AU
Observations Used139
Oppositions1
Arc Total2021-2021
First Observation Used2021-01-08
Last Observation Used2021-08-23
Observations (147)
Date Type RA Dec Mag Band Observatory
2021-07-29 00:11:55 C 01 55 10.81 -30 20 22.6 V L81
2021-07-29 00:32:48 C 01 55 03.61 -30 18 43.8 V L81
2021-07-29 09:19:58 C 01 52 04.10 -29 35 15.5 u 807
2021-07-29 09:23:06 C 01 52 02.90 -29 35 00.2 u 807
2021-07-29 09:26:18 C 01 52 01.76 -29 34 44.5 u 807
2021-08-01 14:00:33 C 01 24 42.52 -22 14 53.7 V T08
2021-08-01 14:05:51 C 01 24 40.35 -22 14 19.2 V T08
2021-08-01 14:15:13 C 01 24 36.55 -22 13 19.3 V T08
2021-08-01 14:41:48 C 01 24 25.70 -22 10 25.9 V T08
2021-08-03 13:40:05 C 01 06 05.15 -16 42 40.8 V T05
2021-08-03 13:42:43 C 01 06 04.00 -16 42 21.3 V T05
2021-08-03 13:48:39 C 01 06 01.45 -16 41 37.4 V T05
2021-08-03 14:08:17 C 01 05 52.96 -16 39 11.9 V T05
2021-08-06 13:17:54 C 00 36 06.878 -07 10 18.43 U F51
2021-08-06 13:34:45 C 00 35 59.084 -07 07 56.09 U F51
2021-08-06 14:08:27 C 00 35 43.500 -07 03 11.43 U F51
2021-08-07 19:25:53 C 00 22 57.25 -02 52 46.5 q D29
2021-08-07 19:29:42 C 00 22 55.45 -02 52 13.8 q D29
2021-08-07 19:46:15 C 00 22 47.72 -02 49 50.5 q D29
2021-08-07 19:50:04 C 00 22 45.93 -02 49 17.9 q D29
2021-08-07 20:06:37 C 00 22 38.13 -02 46 53.2 q D29
2021-08-07 20:10:26 C 00 22 36.44 -02 46 22.3 q D29
2021-08-08 12:24:23 C 00 15 29.82 -00 25 33.7 V T05
2021-08-08 12:32:57 C 00 15 25.78 -00 24 19.2 V T05
2021-08-08 12:40:13 C 00 15 22.36 -00 23 16.7 V T05
2021-08-10 11:44:43 C 23 54 26.18 +06 20 01.8 V T08
2021-08-10 11:50:45 C 23 54 23.32 +06 20 52.6 V T08
2021-08-10 12:00:05 C 23 54 18.89 +06 22 10.9 V T08
2021-08-10 12:10:49 C 23 54 13.79 +06 23 40.6 V T08
2021-08-11 00:07:55 C 23 48 54.97 +08 02 19.6 V K87
2021-08-11 00:10:22 C 23 48 53.85 +08 02 39.2 V K87
2021-08-11 00:12:49 C 23 48 52.71 +08 02 59.5 V K87
2021-08-11 12:54:33 C 23 43 12.00 +09 47 33.2 V T08
2021-08-11 13:06:29 C 23 43 06.34 +09 49 09.5 V T08
2021-08-11 13:10:29 C 23 43 04.45 +09 49 41.6 V T08
2021-08-11 13:29:09 C 23 42 55.57 +09 52 12.3 V T08
2021-08-12 00:16:13 C 23 38 11.35 +11 17 29.9 o K88
2021-08-12 00:17:09 C 23 38 10.92 +11 17 37.4 o K88
2021-08-12 00:18:06 C 23 38 10.48 +11 17 44.8 o K88
2021-08-12 00:33:22 C 23 38 04.17 +11 19 42.0 V K87
2021-08-12 00:35:33 C 23 38 03.18 +11 19 59.4 V K87
2021-08-12 00:37:42 C 23 38 02.19 +11 20 16.4 V K87
2021-08-12 23:01:26 C 23 28 13.91 +14 12 31.1 V J69
2021-08-12 23:07:25 C 23 28 11.21 +14 13 16.6 V J69
2021-08-12 23:13:25 C 23 28 08.50 +14 14 01.6 V J69
2021-08-12 23:19:26 C 23 28 05.81 +14 14 46.9 V J69
2021-08-13 22:47:53 C 23 17 55.30 +17 05 07.4 q L47
2021-08-13 22:49:51 C 23 17 54.60 +17 05 20.6 q L47
2021-08-13 22:51:48 C 23 17 53.80 +17 05 33.1 q L47
2021-08-13 23:14:40 C 23 17 43.33 +17 08 16.0 q L47