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
2021-02-23 07:23:46 C 06 22 06.41 -08 20 24.7 V T08
2021-02-23 07:29:07 C 06 22 08.25 -08 20 12.8 V T08
2021-02-23 07:42:28 C 06 22 12.99 -08 19 43.8 V T08
2021-02-24 21:16:37 C 06 35 27.29 -06 59 32.0 V 203
2021-02-24 21:28:54 C 06 35 31.39 -06 59 06.1 V 203
2021-02-24 21:41:59 C 06 35 35.73 -06 58 38.9 V 203
2021-02-25 01:28:30 C 06 36 53.26 -06 50 44.9 V W46
2021-02-25 01:36:18 C 06 36 55.88 -06 50 28.6 V W46
2021-02-25 01:43:02 C 06 36 57.99 -06 50 14.7 V W46
2021-02-25 02:46:11 C 06 37 18.80 -06 48 03.8 V W33
2021-02-25 02:58:17 C 06 37 22.76 -06 47 38.9 V W33
2021-02-25 03:10:21 C 06 37 26.69 -06 47 14.1 V W33
2021-02-25 21:00:12 C 06 43 20.08 -06 11 04.7 V Z80
2021-02-25 21:06:52 C 06 43 22.14 -06 10 51.6 V Z80
2021-02-25 21:14:01 C 06 43 24.44 -06 10 37.5 V Z80
2021-02-25 21:24:07 C 06 43 27.18 -06 10 13.9 V 160
2021-02-25 21:30:01 C 06 43 29.09 -06 10 01.0 V 160
2021-02-25 21:35:56 C 06 43 30.98 -06 09 50.1 V 160
2021-02-26 20:45:06 C 06 50 51.15 -05 24 25.5 V J95
2021-02-26 20:56:42 C 06 50 54.65 -05 24 03.0 V J95
2021-02-26 21:03:31 C 06 50 56.70 -05 23 49.8 V J95
2021-02-26 21:10:17 C 06 50 58.75 -05 23 36.8 V J95
2021-02-28 21:16:24 C 07 05 08.75 -03 55 00.9 V K87
2021-02-28 21:19:54 C 07 05 09.71 -03 54 55.2 V K87
2021-03-01 21:08:33 C 07 11 41.89 -03 13 59.3 V K87
2021-03-01 21:12:10 C 07 11 42.85 -03 13 53.3 V K87
2021-03-01 21:15:46 C 07 11 43.76 -03 13 47.4 V K87
2021-03-01 22:44:22 C 07 12 06.94 -03 11 17.8 V 160
2021-03-01 22:48:27 C 07 12 08.08 -03 11 11.0 V 160
2021-03-01 22:51:30 C 07 12 08.79 -03 11 05.5 V 160
2021-03-02 21:10:01 C 07 17 59.55 -02 34 36.0 V K87
2021-03-02 21:13:46 C 07 18 00.55 -02 34 30.8 V K87
2021-03-02 21:17:34 C 07 18 01.49 -02 34 24.7 V K87
2021-03-02 21:57:36 C 07 18 11.36 -02 33 18.6 V 160
2021-03-02 22:02:36 C 07 18 12.64 -02 33 09.6 V 160
2021-03-02 22:07:40 C 07 18 13.87 -02 33 02.6 V 160
2021-03-05 20:25:31 C 07 35 04.23 -00 48 39.8 V K87
2021-03-05 20:31:14 C 07 35 05.52 -00 48 31.5 V K87
2021-03-05 20:36:57 C 07 35 06.75 -00 48 23.8 V K87
2021-03-07 08:17:50 C 07 42 51.24 -00 00 54.2 V T08
2021-03-07 08:25:48 C 07 42 52.85 -00 00 43.7 V T08
2021-03-07 08:33:47 C 07 42 54.48 -00 00 33.9 V T08
2021-03-07 08:49:06 C 07 42 57.58 -00 00 14.1 V T08
2021-03-07 19:24:35 C 07 45 10.94 +00 12 53.8 V 130
2021-03-07 19:30:19 C 07 45 12.12 +00 13 01.2 V 130
2021-03-07 19:47:24 C 07 45 15.42 +00 13 21.9 V 246
2021-03-07 19:48:14 C 07 45 15.59 +00 13 23.1 V 246
2021-03-07 19:48:49 C 07 45 15.69 +00 13 23.3 V 246
2021-03-07 19:49:45 C 07 45 15.90 +00 13 25.1 V 246
2021-03-07 19:50:42 C 07 45 16.09 +00 13 26.0 V 246