2021 AC1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3118784000
Semi-major axis (a)1.4111118000 AU
Inclination (i)7.03988000°
Long. of Asc. Node (Ω)108.17797000°
Arg. of Perihelion (ω)29.27636000°
Mean Anomaly (M)309.34083000°
Mean Motion (n)0.5879791400°/day
Perihelion dist (q)0.97101650 AU
Aphelion dist (Q)1.85120710 AU
Orbital Period1.67626290 yr
Physical Parameters
H (abs. magnitude)25.20
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.370″
Uncertainty5
Orbit TypeApollo
MOID0.012951 AU
Observations Used68
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-01-15
Observations (69)
Date Type RA Dec Mag Band Observatory
2020-12-11 10:02:27 C 04 41 54.654 -08 58 56.29 V F51
2020-12-11 10:20:28 C 04 41 53.585 -08 58 56.42 V F51
2020-12-11 10:38:30 C 04 41 52.510 -08 58 56.42 V F51
2020-12-22 08:36:03 C 04 28 29.537 -07 27 56.95 V F51
2020-12-22 08:57:16 C 04 28 27.649 -07 27 39.67 V F51
2020-12-22 09:18:27 C 04 28 25.780 -07 27 22.29 V F51
2020-12-22 09:39:39 C 04 28 23.908 -07 27 04.92 V F51
2021-01-04 06:24:12 C 04 00 23.592 +03 06 06.56 U F52
2021-01-04 06:57:55 C 04 00 16.913 +03 08 29.77 U F52
2021-01-04 07:14:54 C 04 00 13.538 +03 09 41.58 U F52
2021-01-04 20:05:55 C 03 58 14.90 +04 05 11.9 V L01
2021-01-04 20:08:06 C 03 58 14.45 +04 05 22.0 V L01
2021-01-04 20:10:36 C 03 58 13.96 +04 05 33.4 V L01
2021-01-04 20:12:29 C 03 58 13.61 +04 05 41.9 V L01
2021-01-04 20:13:45 C 03 58 13.35 +04 05 47.6 V L01
2021-01-04 22:11:07 C 03 57 52.18 +04 14 49.9 V I93
2021-01-04 22:14:53 C 03 57 51.49 +04 15 08.0 V I93
2021-01-04 22:18:51 C 03 57 50.70 +04 15 26.4 V I93
2021-01-05 02:21:48 C 03 57 17.24 +04 34 44.7 q H36
2021-01-05 02:28:21 C 03 57 15.87 +04 35 15.4 q H36
2021-01-05 02:34:54 C 03 57 14.54 +04 35 46.7 q H36
2021-01-05 02:42:44 C 03 57 12.89 +04 36 24.1 q H36
2021-01-05 02:50:34 C 03 57 11.27 +04 37 01.9 q H36
2021-01-05 03:03:07 C 03 57 10.64 +04 38 12.2 q 858
2021-01-05 03:13:09 C 03 57 08.53 +04 39 00.1 q 858
2021-01-05 03:23:09 C 03 57 06.43 +04 39 48.1 q 858
2021-01-05 04:36:33 C 03 56 51.72 +04 45 48.1 V I52
2021-01-05 04:37:10 C 03 56 51.64 +04 45 50.9 V I52
2021-01-05 04:37:47 C 03 56 51.50 +04 45 54.6 V I52
2021-01-05 04:38:24 C 03 56 51.34 +04 45 58.3 V I52
2021-01-05 04:53:38 C 03 56 48.25 +04 47 12.6 o 691
2021-01-05 05:06:55 C 03 56 45.38 +04 48 16.9 o 691
2021-01-06 02:54:07 C 03 53 02.13 +06 41 08.1 V I52
2021-01-06 02:54:43 C 03 53 01.95 +06 41 11.6 V I52
2021-01-06 02:55:20 C 03 53 01.82 +06 41 14.5 V I52
2021-01-06 02:55:56 C 03 53 01.67 +06 41 18.1 V I52
2021-01-07 07:36:47 C 03 47 05.667 +09 36 35.85 U F52
2021-01-07 07:52:26 C 03 47 01.181 +09 38 20.13 U F52
2021-01-10 03:42:30 C 03 27 38.14 +19 12 08.7 V I52
2021-01-10 03:42:51 C 03 27 38.02 +19 12 12.8 V I52
2021-01-10 03:43:13 C 03 27 37.81 +19 12 16.5 V I52
2021-01-10 03:43:34 C 03 27 37.65 +19 12 20.0 V I52
2021-01-10 04:59:55 C 03 27 03.54 +19 25 47.0 V 703
2021-01-10 05:08:09 C 03 26 59.79 +19 27 14.1 V 703
2021-01-10 05:24:36 C 03 26 52.53 +19 30 06.6 V 703
2021-01-11 00:00:31 C 03 19 31.48 +23 02 12.5 V W34
2021-01-11 00:13:41 C 03 19 24.63 +23 04 54.3 V W34
2021-01-11 00:28:01 C 03 19 17.09 +23 07 50.2 V W34
2021-01-11 20:04:08 C 03 09 26.56 +27 21 28.9 V 595
2021-01-11 20:11:33 C 03 09 21.98 +27 23 09.9 V 595