2021 CA4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4525124737 ± 2.00e+00
Semi-major axis (a)1.8953881849 AU ± 3.00e+00
Inclination (i)14.96019859° ± 4.00e+00
Long. of Asc. Node (Ω)145.92160254° ± 5.00e+00
Arg. of Perihelion (ω)10.32531553° ± 6.00e+00
Mean Anomaly (M)294.05694346° ± 4.79e-01
Mean Motion (n)0.3776722400°/day ± 8.97e-01
Perihelion dist (q)1.03770530 AU ± 4.13e+00
Aphelion dist (Q)2.75331410 AU ± 5.78e+00
Orbital Period2.60969060 yr ± 6.20e+00
Physical Parameters
H (abs. magnitude)24.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.348″
Uncertainty3
Orbit TypeAmor
MOID0.053754 AU
Observations Used67
Oppositions1
Arc Total2021-2021
First Observation Used
Last Observation Used2021-03-07
Observations (67)
Date Type RA Dec Mag Band Observatory
2021-02-07 07:49:04 C 09 49 27.25 -14 24 13.9 V 703
2021-02-07 08:11:43 C 09 49 38.38 -14 22 11.0 V 703
2021-02-09 07:35:50 C 10 16 06.85 -09 26 42.4 V G96
2021-02-09 07:43:13 C 10 16 11.02 -09 25 51.2 V G96
2021-02-09 07:50:37 C 10 16 15.21 -09 24 59.5 V G96
2021-02-09 07:58:01 C 10 16 19.41 -09 24 08.0 V G96
2021-02-09 09:41:03 C 10 17 17.98 -09 12 05.4 V I52
2021-02-09 09:43:29 C 10 17 19.38 -09 11 47.8 V I52
2021-02-09 14:22:50 C 10 20 12.64 -08 36 19.7 q E23
2021-02-09 14:43:49 C 10 20 24.79 -08 33 48.3 q E23
2021-02-09 15:09:16 C 10 20 39.43 -08 30 44.7 q E23
2021-02-09 22:54:29 C 10 25 29.66 -07 36 51.4 V 033
2021-02-09 22:55:34 C 10 25 30.30 -07 36 43.3 V 033
2021-02-09 22:56:39 C 10 25 30.94 -07 36 35.2 V 033
2021-02-09 22:57:50 C 10 25 31.65 -07 36 26.4 V 033
2021-02-09 23:01:20 C 10 25 33.79 -07 36 00.2 V 033
2021-02-09 23:02:24 C 10 25 34.43 -07 35 52.3 V 033
2021-02-09 23:03:29 C 10 25 35.07 -07 35 44.2 V 033
2021-02-09 23:05:44 C 10 25 36.42 -07 35 27.5 V 033
2021-02-10 11:25:15 C 10 33 25.058 -06 00 33.38 U F51
2021-02-10 11:41:53 C 10 33 35.181 -05 58 23.28 U F51
2021-02-10 12:15:01 C 10 33 55.362 -05 54 03.68 U F51
2021-02-11 12:53:02 C 10 50 14.50 -02 33 10.9 V I52
2021-02-11 12:53:50 C 10 50 15.04 -02 33 04.1 V I52
2021-02-11 12:54:39 C 10 50 15.57 -02 32 57.6 V I52
2021-02-11 12:55:28 C 10 50 16.14 -02 32 50.5 V I52
2021-02-12 09:44:26 C 11 04 55.00 +00 28 22.5 V I52
2021-02-12 09:44:47 C 11 04 55.20 +00 28 25.5 V I52
2021-02-12 09:45:08 C 11 04 55.42 +00 28 28.7 V I52
2021-02-12 09:45:30 C 11 04 55.64 +00 28 32.0 V I52
2021-02-16 07:59:22 C 12 15 32.68 +14 44 50.3 V I52
2021-02-16 08:01:09 C 12 15 34.04 +14 45 06.0 V I52
2021-02-18 01:57:46 C 12 46 50.68 +20 22 39.7 V 204
2021-02-18 02:15:57 C 12 47 03.41 +20 24 55.4 V 204
2021-02-19 11:08:44 C 13 10 24.29 +24 11 31.4 V I52
2021-02-19 11:15:31 C 13 10 28.69 +24 12 14.4 V I52
2021-02-19 11:17:31 C 13 10 30.03 +24 12 26.9 V I52
2021-02-19 11:18:20 C 13 10 30.55 +24 12 32.0 V I52
2021-02-21 08:11:05 C 13 39 57.85 +28 22 24.2 u H21
2021-02-21 08:15:25 C 13 40 00.38 +28 22 45.6 u H21
2021-02-22 12:03:46 C 13 56 28.11 +30 26 49.1 V I52
2021-02-22 12:07:23 C 13 56 30.01 +30 27 03.1 V I52
2021-02-22 12:10:05 C 13 56 31.49 +30 27 14.3 V I52
2021-02-22 12:12:48 C 13 56 32.92 +30 27 24.6 V I52
2021-02-23 09:19:18 C 14 08 17.31 +31 47 19.5 V I52
2021-02-23 09:24:50 C 14 08 20.09 +31 47 40.2 V I52
2021-02-23 09:30:22 C 14 08 22.86 +31 48 00.1 V I52
2021-02-23 09:35:54 C 14 08 25.68 +31 48 19.4 V I52
2021-02-24 12:18:17 C 14 21 58.02 +33 14 32.4 V I52
2021-02-24 12:20:07 C 14 21 58.84 +33 14 37.6 V I52