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
2021-04-16 14:20:14 C 15 29 17.404 +09 17 26.88 U F51
2021-04-16 14:24:53 C 15 29 17.390 +09 17 31.00 U F51
2021-04-16 14:32:21 C 15 29 17.382 +09 17 37.48 U F51
2021-04-16 14:36:57 C 15 29 17.370 +09 17 41.57 U F51
2021-04-16 14:49:04 C 15 29 17.352 +09 17 52.17 U F51
2021-04-18 08:55:06 C 15 29 32.73 +09 53 01.6 V 703
2021-04-18 09:02:39 C 15 29 32.67 +09 53 07.2 V 703
2021-04-18 09:10:13 C 15 29 32.68 +09 53 12.9 V 703
2021-04-18 09:17:45 C 15 29 32.56 +09 53 20.3 V 703
2021-04-18 10:19:27 C 15 29 34.03 +09 54 14.8 V T05
2021-04-18 10:28:44 C 15 29 33.97 +09 54 22.2 V T05
2021-04-18 10:31:24 C 15 29 33.95 +09 54 24.3 V T05
2021-04-18 10:45:57 C 15 29 33.84 +09 54 35.8 V T05
2021-04-19 08:58:22 C 15 29 37.448 +10 11 21.82 U F52
2021-04-19 09:13:10 C 15 29 37.349 +10 11 32.94 U F52
2021-04-19 09:28:03 C 15 29 37.242 +10 11 44.05 U F52
2021-04-19 09:42:52 C 15 29 37.128 +10 11 55.08 U F52
2021-04-19 10:18:47 C 15 29 36.84 +10 12 21.6 V T05
2021-04-19 10:23:17 C 15 29 36.78 +10 12 24.6 V T05
2021-04-19 10:27:59 C 15 29 36.80 +10 12 28.7 V T05
2021-04-19 10:58:26 C 15 29 36.45 +10 12 51.1 V T05
2021-04-20 06:35:08 C 15 29 37.16 +10 26 29.1 U I41
2021-04-20 07:39:58 C 15 29 36.60 +10 27 14.0 U I41
2021-04-20 07:42:42 C 15 29 36.57 +10 27 15.9 U I41
2021-04-20 09:05:13 C 15 29 35.72 +10 28 12.3 U I41
2021-04-21 08:37:14 C 15 29 32.82 +10 43 28.8 V 703
2021-04-21 08:45:01 C 15 29 32.66 +10 43 33.8 V 703
2021-04-21 08:52:48 C 15 29 32.62 +10 43 39.1 V 703
2021-04-21 09:00:36 C 15 29 32.53 +10 43 43.9 V 703
2021-04-22 09:22:17 C 15 29 26.61 +10 58 14.6 V 703
2021-04-22 09:30:04 C 15 29 26.45 +10 58 19.2 V 703
2021-04-22 09:37:53 C 15 29 26.31 +10 58 23.2 V 703
2021-04-22 09:45:41 C 15 29 26.28 +10 58 28.3 V 703
2021-04-22 23:06:25 C 15 29 23.25 +11 05 42.4 V A17
2021-04-22 23:17:45 C 15 29 23.13 +11 05 48.6 V A17
2021-04-22 23:18:55 C 15 29 23.01 +11 05 48.9 V K87
2021-04-22 23:22:05 C 15 29 22.99 +11 05 50.4 V K87
2021-04-22 23:25:16 C 15 29 22.96 +11 05 51.8 V K87
2021-04-22 23:27:13 C 15 29 22.99 +11 05 55.9 V 130
2021-04-22 23:29:04 C 15 29 22.97 +11 05 54.9 V A17
2021-04-22 23:39:26 C 15 29 22.81 +11 06 02.9 V 130
2021-04-23 05:30:52 C 15 29 21.09 +11 09 12.6 u H21
2021-04-23 05:34:24 C 15 29 21.04 +11 09 14.6 u H21
2021-04-23 05:37:20 C 15 29 21.03 +11 09 16.2 u H21
2021-04-23 05:40:17 C 15 29 21.02 +11 09 17.7 u H21
2021-04-23 05:43:01 C 15 29 20.96 +11 09 19.1 u H21
2021-04-30 04:20:51 C 15 27 36.16 +12 10 24.0 u H21
2021-04-30 04:24:11 C 15 27 36.11 +12 10 24.7 u H21
2021-04-30 05:16:29 C 15 27 35.83 +12 10 37.4 U I41
2021-04-30 05:41:54 C 15 27 35.33 +12 10 43.4 U I41