2021 AC

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.0750630277 ± 9.66e-08
Semi-major axis (a)1.0367251614 AU ± 5.08e-08
Inclination (i)26.61838044° ± 1.49e-05
Long. of Asc. Node (Ω)285.21758285° ± 5.40e-07
Arg. of Perihelion (ω)251.42785916° ± 1.28e-05
Mean Anomaly (M)158.93091806° ± 1.13e-04
Mean Motion (n)0.9337203359°/day ± 6.86e-08
Perihelion dist (q)0.95890543 AU ± 1.11e-07
Aphelion dist (Q)1.11454489 AU ± 1.14e-07
Orbital Period1.05559046 yr ± 7.75e-08
Physical Parameters
H (abs. magnitude)23.68
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.209″
Uncertainty0
Orbit TypeApollo
MOID0.022807 AU
Observations Used135
Oppositions1
Arc Total2021-2021
First Observation Used2021-01-02
Last Observation Used2021-07-04
Observations (144)
Date Type RA Dec Mag Band Observatory
2021-01-07 13:47:16 C 06 03 36.90 -08 58 24.8 o P93
2021-01-07 13:48:56 C 06 03 35.36 -08 59 28.1 o P93
2021-01-07 13:50:34 C 06 03 33.87 -09 00 29.3 o P93
2021-01-07 14:34:29 C 06 02 52.78 -09 28 00.0 q 900
2021-01-07 14:40:41 C 06 02 47.13 -09 31 51.9 q 900
2021-01-07 22:35:43 C 05 56 27.81 -14 14 19.0 V 204
2021-01-07 22:39:25 C 05 56 24.71 -14 16 23.6 V 204
2021-01-07 22:42:15 C 05 56 22.28 -14 17 59.7 V 204
2021-01-08 09:52:47 C 05 48 01.478 -20 06 07.64 V F51
2021-01-08 10:07:49 C 05 47 49.504 -20 13 19.69 V F51
2021-01-08 10:24:08 C 05 47 36.637 -20 21 05.96 V F51
2021-01-08 10:39:22 C 05 47 24.657 -20 28 19.32 V F51
2021-01-08 12:01:57 C 05 46 20.92 -21 06 52.8 V T05
2021-01-08 12:08:11 C 05 46 16.20 -21 09 45.3 V T05
2021-01-08 12:15:46 C 05 46 10.50 -21 13 14.5 V T05
2021-01-08 12:32:43 C 05 45 57.77 -21 21 00.2 V T05
2021-01-08 21:14:13 C 05 40 24.07 -25 09 09.7 V 595
2021-01-08 21:20:32 C 05 40 19.56 -25 11 44.9 V 595
2021-01-08 21:25:42 C 05 40 15.88 -25 13 50.4 V 595
2021-01-09 13:10:58 C 05 30 31.35 -30 49 56.2 V 474
2021-01-09 13:12:25 C 05 30 30.44 -30 50 23.8 V 474
2021-01-09 13:16:32 C 05 30 27.91 -30 51 41.7 V 474
2021-01-09 13:17:58 C 05 30 27.00 -30 52 09.6 V 474
2021-01-12 03:24:47 C 05 02 00.38 -44 09 21.2 u 807
2021-01-12 03:31:08 C 05 01 57.73 -44 10 13.0 u 807
2021-01-12 03:37:30 C 05 01 55.06 -44 11 04.8 u 807
2021-01-13 02:50:55 C 04 54 06.21 -47 00 07.4 u 807
2021-01-13 02:53:50 C 04 54 05.16 -47 00 25.6 u 807
2021-01-13 02:56:44 C 04 54 04.11 -47 00 43.8 u 807
2021-01-13 02:59:39 C 04 54 03.01 -47 01 02.2 u 807
2021-01-15 02:47:52 C 04 41 07.25 -51 01 52.8 u 807
2021-01-15 02:57:20 C 04 41 04.62 -51 02 29.4 u 807
2021-01-15 03:06:08 C 04 41 02.18 -51 03 03.6 u 807
2021-01-17 03:15:12 C 04 31 11.16 -53 39 53.0 u 807
2021-01-17 03:22:39 C 04 31 09.56 -53 40 12.8 u 807
2021-01-17 03:37:27 C 04 31 06.41 -53 40 49.9 u 807
2021-01-20 03:35:22 C 04 20 17.45 -56 11 42.8 u 807
2021-01-20 03:47:12 C 04 20 15.61 -56 12 00.6 u 807
2021-01-20 03:59:00 C 04 20 13.79 -56 12 18.5 u 807
2021-07-04 00:56:13 C 23 19 11.15 +10 05 18.9 V 033
2021-07-04 00:58:16 C 23 19 10.63 +10 05 35.3 V 033
2021-07-04 01:00:20 C 23 19 10.13 +10 05 51.2 V 033
2021-07-04 01:02:23 C 23 19 09.63 +10 06 08.1 V 033
2021-07-04 01:04:33 C 23 19 09.11 +10 06 25.0 V 033