2021 CW4

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5402743871 ± 5.66e-08
Semi-major axis (a)1.7566191651 AU ± 1.45e-07
Inclination (i)6.93897729° ± 3.71e-06
Long. of Asc. Node (Ω)204.77483514° ± 4.43e-05
Arg. of Perihelion (ω)225.10227850° ± 4.47e-05
Mean Anomaly (M)37.12863675° ± 7.15e-05
Mean Motion (n)0.4233463806°/day ± 5.23e-08
Perihelion dist (q)0.80756282 AU ± 1.20e-07
Aphelion dist (Q)2.70567551 AU ± 2.44e-07
Orbital Period2.32817931 yr ± 2.88e-07
Physical Parameters
H (abs. magnitude)19.65
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.262″
Uncertainty0
Orbit TypeApollo
MOID0.036602 AU
Observations Used231
Oppositions2
Arc Total2017-2021
First Observation Used2017-05-21
Last Observation Used2021-04-15
Observations (245)
Date Type RA Dec Mag Band Observatory
2021-02-10 18:39:22 C 04 01 35.33 -19 41 42.1 V J95
2021-02-10 18:42:28 C 04 01 36.50 -19 41 35.7 V K74
2021-02-10 18:48:07 C 04 01 39.96 -19 41 26.4 V J95
2021-02-10 18:56:06 C 04 01 44.19 -19 41 11.5 V J95
2021-02-10 19:05:13 C 04 01 48.62 -19 40 52.5 V 204
2021-02-10 19:15:14 C 04 01 53.94 -19 40 34.0 V 204
2021-02-10 19:25:18 C 04 01 59.29 -19 40 15.2 V 204
2021-02-10 20:11:14 C 04 02 24.62 -19 38 43.1 V J04
2021-02-10 20:11:37 C 04 02 24.81 -19 38 42.6 V J04
2021-02-10 20:12:00 C 04 02 25.02 -19 38 41.7 V J04
2021-02-11 02:34:47 C 04 05 51.93 -19 26 50.5 V G96
2021-02-11 02:42:50 C 04 05 56.18 -19 26 35.4 V G96
2021-02-11 02:50:53 C 04 06 00.42 -19 26 20.1 V G96
2021-02-11 02:58:56 C 04 06 04.69 -19 26 04.8 V G96
2021-02-12 03:29:09 C 04 19 14.27 -18 38 06.1 V I52
2021-02-12 03:31:50 C 04 19 15.69 -18 38 00.3 V I52
2021-02-12 03:34:31 C 04 19 17.08 -18 37 54.7 V I52
2021-02-12 03:37:11 C 04 19 18.47 -18 37 49.4 V I52
2021-02-12 03:46:17 C 04 19 23.22 -18 37 30.6 V 703
2021-02-12 03:54:13 C 04 19 27.42 -18 37 14.8 V 703
2021-02-12 04:02:09 C 04 19 31.55 -18 36 58.3 V 703
2021-02-12 04:10:04 C 04 19 35.71 -18 36 42.0 V 703
2021-02-12 06:51:34 C 04 21 01.96 -18 31 06.7 V T05
2021-02-12 06:57:31 C 04 21 05.03 -18 30 54.3 V T05
2021-02-12 07:07:28 C 04 21 10.38 -18 30 33.4 V T05
2021-02-12 07:23:22 C 04 21 18.49 -18 30 00.1 V T05
2021-02-12 10:31:00 C 04 22 58.34 -18 22 42.3 V 474
2021-02-12 10:32:27 C 04 22 59.09 -18 22 39.1 V 474
2021-02-12 10:33:53 C 04 22 59.85 -18 22 36.4 V 474
2021-02-12 10:35:20 C 04 23 00.61 -18 22 33.1 V 474
2021-02-14 17:46:19 C 04 51 46.93 -16 23 02.9 V 246
2021-02-14 17:47:04 C 04 51 47.28 -16 23 00.8 V 246
2021-02-14 17:47:18 C 04 51 47.44 -16 23 00.4 V 246
2021-02-14 17:47:34 C 04 51 47.56 -16 23 00.3 V 246
2021-02-14 17:47:49 C 04 51 47.76 -16 22 58.8 V 246
2021-02-14 17:48:03 C 04 51 47.76 -16 22 59.1 V 246
2021-02-14 17:48:19 C 04 51 47.89 -16 22 58.9 V 246
2021-02-15 06:51:35 C 04 58 21.61 -15 52 34.5 V T08
2021-02-15 06:56:15 C 04 58 23.85 -15 52 22.9 V T08
2021-02-15 07:00:14 C 04 58 25.77 -15 52 14.2 V T08
2021-02-15 07:07:02 C 04 58 29.14 -15 51 58.0 V T08
2021-02-15 07:07:41 C 04 58 29.46 -15 51 56.6 V T08
2021-02-15 07:18:19 C 04 58 34.60 -15 51 31.6 V T08
2021-02-15 07:24:18 C 04 58 37.55 -15 51 18.1 V T08
2021-02-15 07:28:57 C 04 58 39.81 -15 51 06.7 V T08
2021-02-15 18:04:42 C 05 03 57.43 -15 26 34.5 V 595
2021-02-15 18:08:40 C 05 03 59.35 -15 26 25.4 V 595
2021-02-15 18:12:38 C 05 04 01.23 -15 26 16.5 V 595
2021-02-16 07:21:50 C 05 10 26.42 -14 54 56.2 V T05
2021-02-16 07:27:47 C 05 10 29.22 -14 54 42.2 V T05