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
2021-03-07 20:00:16 C 07 45 18.07 +00 13 37.0 V K74
2021-03-07 20:04:43 C 07 45 18.98 +00 13 42.6 V K74
2021-03-07 20:06:56 C 07 45 19.41 +00 13 45.5 V K74
2021-03-10 03:39:42 C 07 56 15.31 +01 18 46.3 V I52
2021-03-10 03:42:13 C 07 56 15.78 +01 18 49.6 V I52
2021-03-10 03:44:43 C 07 56 16.22 +01 18 52.3 V I52
2021-03-11 03:31:24 C 08 00 39.24 +01 44 17.2 V I52
2021-03-11 03:33:37 C 08 00 39.61 +01 44 19.5 V I52
2021-03-11 03:41:42 C 08 00 40.98 +01 44 28.2 V I52
2021-03-11 03:47:56 C 08 00 42.07 +01 44 34.5 V I52
2021-03-15 06:54:09 C 08 17 20.611 +03 16 52.65 U F52
2021-03-15 07:11:03 C 08 17 23.149 +03 17 06.67 U F52
2021-03-15 07:44:56 C 08 17 28.221 +03 17 34.68 U F52
2021-03-18 03:39:40 C 08 27 36.44 +04 09 24.0 V I52
2021-03-18 03:45:57 C 08 27 37.33 +04 09 28.5 V I52
2021-03-18 03:52:19 C 08 27 38.19 +04 09 32.9 V I52
2021-03-18 03:58:45 C 08 27 39.09 +04 09 37.7 V I52
2021-03-19 07:53:17 C 08 31 33.65 +04 28 41.5 V T08
2021-03-19 07:57:56 C 08 31 34.22 +04 28 45.0 V T08
2021-03-19 08:08:33 C 08 31 35.61 +04 28 51.6 V T08
2021-03-19 08:23:25 C 08 31 37.58 +04 29 01.0 V T08
2021-03-20 04:32:31 C 08 34 22.54 +04 41 52.5 V G96
2021-03-20 04:39:54 C 08 34 23.51 +04 41 57.2 V G96
2021-03-20 04:47:19 C 08 34 24.46 +04 42 01.8 V G96
2021-03-20 04:54:42 C 08 34 25.42 +04 42 06.3 V G96
2021-03-23 03:43:55 C 08 43 35.07 +05 22 43.2 V I52
2021-03-23 03:44:52 C 08 43 35.17 +05 22 44.5 V I52
2021-03-23 03:53:01 C 08 43 36.18 +05 22 48.1 V I52
2021-03-30 06:29:50 C 09 03 08.94 +06 34 46.6 V I52
2021-03-30 06:30:57 C 09 03 09.12 +06 34 47.6 V I52
2021-03-30 06:34:49 C 09 03 09.48 +06 34 48.5 V I52
2021-03-30 06:51:27 C 09 03 11.13 +06 34 53.9 V I52
2021-04-02 05:36:52 C 09 10 29.75 +06 55 54.8 V I52
2021-04-02 05:38:29 C 09 10 29.96 +06 55 54.8 V I52
2021-04-02 05:43:21 C 09 10 30.39 +06 55 56.2 V I52
2021-04-08 04:32:43 C 09 24 12.68 +07 25 46.7 V G96
2021-04-08 04:40:08 C 09 24 13.31 +07 25 47.7 V G96
2021-04-08 04:47:33 C 09 24 14.01 +07 25 48.7 V G96
2021-04-08 04:54:59 C 09 24 14.63 +07 25 50.1 V G96
2021-04-11 05:48:23 C 09 30 48.868 +07 35 29.65 V F52
2021-04-11 06:21:47 C 09 30 51.720 +07 35 33.14 V F52
2021-04-11 06:38:27 C 09 30 53.144 +07 35 35.06 V F52
2021-04-15 05:51:22 C 09 39 07.162 +07 43 12.33 U F52
2021-04-15 06:24:45 C 09 39 09.882 +07 43 14.03 U F52
2021-04-15 06:41:23 C 09 39 11.224 +07 43 14.69 U F52