2021 CN4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4459069775 ± 1.33e-06
Semi-major axis (a)1.9369942090 AU ± 5.14e-06
Inclination (i)9.89043939° ± 2.11e-05
Long. of Asc. Node (Ω)181.33976200° ± 8.83e-06
Arg. of Perihelion (ω)342.22460217° ± 6.13e-06
Mean Anomaly (M)270.61357824° ± 2.52e-03
Mean Motion (n)0.3656114537°/day ± 1.46e-06
Perihelion dist (q)1.07327498 AU ± 3.84e-06
Aphelion dist (Q)2.80071344 AU ± 7.87e-06
Orbital Period2.69582989 yr ± 1.07e-05
Physical Parameters
H (abs. magnitude)20.47
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.176″
Uncertainty1
Orbit TypeAmor
MOID0.087348 AU
Observations Used283
Oppositions1
Arc Total2021-2021
First Observation Used2021-02-06
Last Observation Used2021-06-14
Observations (311)
Date Type RA Dec Mag Band Observatory
2021-02-06 11:07:42 C 09 44 03.36 -36 36 47.4 V T08
2021-02-06 11:12:20 C 09 44 04.18 -36 36 51.3 V T08
2021-02-06 11:20:18 C 09 44 05.61 -36 36 59.0 V T08
2021-02-06 11:36:55 C 09 44 08.66 -36 37 14.7 V T08
2021-02-06 15:14:30 C 09 44 51.55 -36 39 45.4 V 474
2021-02-06 15:17:23 C 09 44 52.06 -36 39 48.2 V 474
2021-02-06 15:23:08 C 09 44 53.16 -36 39 53.0 V 474
2021-02-06 15:26:01 C 09 44 53.69 -36 39 55.6 V 474
2021-02-07 04:04:17 C 09 47 31.44 -36 51 42.7 u 807
2021-02-07 04:06:55 C 09 47 31.94 -36 51 45.3 u 807
2021-02-07 04:09:56 C 09 47 32.51 -36 51 48.1 u 807
2021-02-07 12:16:10 C 09 49 13.50 -36 58 49.4 V 474
2021-02-07 12:18:12 C 09 49 13.89 -36 58 51.3 V 474
2021-02-07 12:20:14 C 09 49 14.31 -36 58 53.0 V 474
2021-02-10 04:39:21 C 10 03 36.56 -37 50 40.7 u 807
2021-02-10 04:41:03 C 10 03 36.93 -37 50 42.1 u 807
2021-02-10 04:47:57 C 10 03 38.45 -37 50 47.0 u 807
2021-02-10 04:49:18 C 10 03 38.75 -37 50 48.1 u 807
2021-02-12 11:35:04 C 10 17 17.59 -38 25 47.7 V T05
2021-02-12 11:37:04 C 10 17 18.09 -38 25 48.8 V T05
2021-02-12 11:39:42 C 10 17 18.76 -38 25 50.1 V T05
2021-02-12 11:45:04 C 10 17 20.02 -38 25 52.5 V T05
2021-02-12 12:34:28 C 10 17 32.04 -38 26 17.0 V T05
2021-02-12 12:39:44 C 10 17 33.29 -38 26 19.6 V T05
2021-02-12 12:40:23 C 10 17 33.47 -38 26 19.6 V T05
2021-02-14 11:08:11 C 10 30 17.04 -38 46 41.3 V T08
2021-02-14 11:12:50 C 10 30 18.27 -38 46 42.6 V T08
2021-02-14 11:20:48 C 10 30 20.34 -38 46 45.5 V T08
2021-02-14 11:36:43 C 10 30 24.57 -38 46 51.1 V T08
2021-02-17 12:45:31 C 10 52 26.55 -38 57 49.6 V 474
2021-02-17 12:51:16 C 10 52 28.28 -38 57 49.6 V 474
2021-02-17 12:57:02 C 10 52 30.01 -38 57 49.7 V 474
2021-02-19 13:08:30 C 11 08 16.44 -38 49 42.7 V 474
2021-02-19 13:11:24 C 11 08 17.37 -38 49 41.9 V 474
2021-02-19 13:14:17 C 11 08 18.30 -38 49 40.9 V 474
2021-02-22 11:00:22 C 11 32 39.82 -38 12 21.2 V T08
2021-02-22 11:05:01 C 11 32 41.37 -38 12 18.0 V T08
2021-02-22 11:09:01 C 11 32 42.71 -38 12 14.7 V T08
2021-02-22 11:16:19 C 11 32 45.17 -38 12 08.9 V T08
2021-02-26 12:23:52 C 12 08 33.16 -36 18 45.1 V T08
2021-02-26 12:56:21 C 12 08 44.47 -36 17 53.2 V T08
2021-02-26 13:01:29 C 12 08 46.29 -36 17 45.6 V T08
2021-02-26 13:02:08 C 12 08 46.56 -36 17 44.4 V T08
2021-02-26 13:39:49 C 12 08 59.75 -36 16 43.8 V T08
2021-02-26 13:40:29 C 12 08 59.96 -36 16 42.4 V T08
2021-03-04 13:49:47 C 13 01 48.96 -31 12 59.0 V T05
2021-03-04 13:54:28 C 13 01 50.49 -31 12 46.4 V T05
2021-03-04 14:06:23 C 13 01 54.39 -31 12 14.6 V T05
2021-03-04 14:22:15 C 13 01 59.60 -31 11 31.7 V T05
2021-03-06 12:01:57 C 13 17 38.61 -29 05 55.2 V T08