2021 CU4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1585704321 ± 1.29e-06
Semi-major axis (a)1.1449456617 AU ± 1.35e-06
Inclination (i)24.47181012° ± 1.64e-04
Long. of Asc. Node (Ω)130.66846462° ± 6.49e-05
Arg. of Perihelion (ω)138.11303510° ± 4.21e-05
Mean Anomaly (M)220.11981807° ± 2.31e-03
Mean Motion (n)0.8045165126°/day ± 1.42e-06
Perihelion dist (q)0.96339113 AU ± 1.87e-06
Aphelion dist (Q)1.32650019 AU ± 2.15e-06
Orbital Period1.22511629 yr ± 2.16e-06
Physical Parameters
H (abs. magnitude)22.26
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.211″
Uncertainty1
Orbit TypeApollo
MOID0.017636 AU
Observations Used40
Oppositions1
Arc Total2021-2021
First Observation Used2021-02-07
Last Observation Used2021-08-15
Observations (42)
Date Type RA Dec Mag Band Observatory
2021-02-07 15:24:43 C 12 17 41.565 +29 20 47.95 U F51
2021-02-07 15:34:45 C 12 17 42.466 +29 21 25.10 U F51
2021-02-07 15:44:46 C 12 17 43.355 +29 22 01.66 U F51
2021-02-08 09:58:33 C 12 19 33.087 +30 29 43.45 V 568
2021-02-08 09:59:58 C 12 19 33.213 +30 29 48.76 V 568
2021-02-08 10:01:22 C 12 19 33.347 +30 29 54.14 V 568
2021-02-09 08:54:32 C 12 21 47.73 +31 55 49.7 V I52
2021-02-09 08:59:23 C 12 21 48.16 +31 56 07.8 V I52
2021-02-09 09:04:13 C 12 21 48.61 +31 56 26.1 V I52
2021-02-09 09:09:04 C 12 21 49.06 +31 56 44.4 V I52
2021-02-09 22:24:31 C 12 23 08.75 +32 46 43.2 V 033
2021-02-09 22:28:26 C 12 23 09.12 +32 46 58.0 V 033
2021-02-09 22:32:21 C 12 23 09.46 +32 47 13.2 V 033
2021-02-10 04:39:53 C 12 23 44.60 +33 10 46.4 V J04
2021-02-10 04:47:23 C 12 23 45.28 +33 11 14.6 V J04
2021-02-10 04:54:10 C 12 23 45.91 +33 11 40.4 V J04
2021-02-13 10:17:36 C 12 31 39.63 +38 08 51.5 V V00
2021-02-13 10:24:29 C 12 31 40.42 +38 09 17.2 V V00
2021-02-13 10:31:20 C 12 31 41.06 +38 09 43.6 V V00
2021-02-13 10:38:12 C 12 31 41.74 +38 10 10.5 V V00
2021-02-13 12:56:37 C 12 31 54.89 +38 19 00.4 V I52
2021-02-13 12:59:03 C 12 31 55.09 +38 19 09.6 V I52
2021-02-13 13:01:28 C 12 31 55.31 +38 19 19.3 V I52
2021-02-15 03:41:02 C 12 36 00.42 +40 48 11.4 V 033
2021-02-15 03:44:57 C 12 36 00.82 +40 48 26.9 V 033
2021-02-15 03:48:52 C 12 36 01.19 +40 48 41.9 V 033
2021-02-15 03:52:53 C 12 36 01.64 +40 48 57.2 V 033
2021-02-15 07:39:27 C 12 36 28.07 +41 03 35.3 V G96
2021-02-15 07:47:44 C 12 36 28.89 +41 04 07.6 V G96
2021-02-15 07:56:01 C 12 36 29.66 +41 04 40.2 V G96
2021-02-15 08:04:19 C 12 36 30.44 +41 05 12.9 V G96
2021-02-16 12:38:14 C 12 39 34.411 +42 54 45.88 U F51
2021-02-16 12:55:14 C 12 39 36.052 +42 55 51.29 U F51
2021-02-16 13:26:11 C 12 39 39.043 +42 57 49.11 U F51
2021-02-22 10:57:41 C 12 55 48.63 +51 38 37.2 V I52
2021-02-22 11:02:32 C 12 55 49.15 +51 38 54.2 V I52
2021-02-22 11:07:23 C 12 55 49.66 +51 39 10.8 V I52
2021-02-22 11:12:13 C 12 55 50.19 +51 39 27.6 V I52
2021-08-08 01:44:33 C 03 41 56.83 -20 19 52.6 V L81
2021-08-08 02:31:29 C 03 42 02.91 -20 24 35.2 V L81
2021-08-15 02:55:46 C 04 03 13.16 -33 57 34.8 V L81
2021-08-15 03:34:22 C 04 03 16.96 -34 00 05.3 V L81