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
2021-01-08 11:29:45 C 11 45 23.41 +21 26 11.0 V G96
2021-01-08 11:51:54 C 11 45 23.65 +21 25 43.4 V G96
2021-01-11 12:50:44 C 11 46 20.042 +19 47 23.49 V F52
2021-01-11 13:08:17 C 11 46 20.091 +19 46 58.91 V F52
2021-01-18 13:04:12 C 11 45 43.39 +15 21 12.6 V G96
2021-01-18 13:11:34 C 11 45 43.20 +15 20 59.4 V G96
2021-01-18 13:18:55 C 11 45 43.02 +15 20 46.2 V G96
2021-02-06 12:02:50 C 11 16 59.917 -04 08 50.62 V F52
2021-02-06 12:18:31 C 11 16 57.830 -04 09 45.89 U F52
2021-02-06 12:34:10 C 11 16 55.733 -04 10 41.12 U F52
2021-02-07 06:02:28 C 11 14 46.03 -05 13 04.6 V I52
2021-02-07 06:25:56 C 11 14 42.87 -05 14 29.2 V I52
2021-02-07 06:27:02 C 11 14 42.70 -05 14 33.0 V I52
2021-02-07 14:28:36 C 11 13 38.66 -05 42 45.8 V 474
2021-02-07 14:31:10 C 11 13 38.28 -05 42 54.9 V 474
2021-02-07 14:33:44 C 11 13 37.93 -05 43 04.3 V 474
2021-02-07 14:36:17 C 11 13 37.57 -05 43 13.6 V 474
2021-02-08 08:30:15 C 11 11 14.07 -06 49 51.9 V G96
2021-02-08 08:37:40 C 11 11 12.97 -06 50 19.5 V G96
2021-02-08 08:46:54 C 11 11 11.61 -06 50 53.9 V G96
2021-02-08 08:57:47 C 11 11 10.00 -06 51 34.1 V G96
2021-02-17 12:30:29 C 10 32 40.09 -21 31 58.8 V 474
2021-02-17 12:31:47 C 10 32 39.79 -21 32 04.2 V 474
2021-02-17 12:33:05 C 10 32 39.51 -21 32 09.5 V 474
2021-02-17 12:34:24 C 10 32 39.20 -21 32 14.9 V 474
2021-02-23 05:21:48 C 10 00 30.68 -30 37 30.0 V I52
2021-02-23 05:23:13 C 10 00 30.33 -30 37 35.3 V I52
2021-02-23 05:24:38 C 10 00 29.91 -30 37 40.7 V I52
2021-02-23 05:26:03 C 10 00 29.53 -30 37 46.0 V I52
2021-03-07 00:40:51 C 08 43 36.19 -44 10 27.5 u 807
2021-03-07 00:44:21 C 08 43 35.21 -44 10 34.4 u 807
2021-03-07 00:47:56 C 08 43 34.21 -44 10 41.4 u 807
2021-03-13 00:54:50 C 08 06 41.30 -47 52 49.2 u 807
2021-03-13 01:00:45 C 08 06 39.80 -47 52 56.3 u 807
2021-03-13 01:06:36 C 08 06 38.30 -47 53 03.1 u 807
2021-03-13 09:06:41 C 08 04 44.26 -48 02 11.6 V 474
2021-03-13 09:10:05 C 08 04 43.43 -48 02 15.5 V 474
2021-03-13 09:13:29 C 08 04 42.58 -48 02 19.6 V 474
2021-03-13 09:16:53 C 08 04 41.75 -48 02 23.2 V 474
2021-03-18 09:45:06 C 07 38 22.73 -49 53 09.2 V 474
2021-03-18 09:49:20 C 07 38 21.85 -49 53 12.2 V 474
2021-03-18 09:53:34 C 07 38 20.95 -49 53 15.3 V 474
2021-03-18 09:57:48 C 07 38 20.03 -49 53 18.2 V 474
2021-04-07 09:05:22 C 06 31 48.71 -52 43 22.3 V 474
2021-04-07 09:23:04 C 06 31 47.09 -52 43 24.0 V 474
2021-04-07 09:28:52 C 06 31 46.52 -52 43 24.8 V 474
2021-07-27 23:58:10 C 02 03 01.40 -32 13 28.3 V L81
2021-07-28 00:31:09 C 02 02 50.56 -32 11 06.2 V L81
2021-07-28 00:44:43 C 02 02 46.07 -32 10 07.2 V L81
2021-07-28 23:50:50 C 01 55 18.01 -30 22 01.6 V L81