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
2021-01-11 20:26:23 C 03 09 12.79 +27 26 32.6 V 595
2021-01-11 23:04:48 C 03 07 36.70 +28 02 39.5 V 204
2021-01-11 23:15:58 C 03 07 29.97 +28 05 12.0 V 204
2021-01-11 23:25:03 C 03 07 24.50 +28 07 15.7 V 204
2021-01-12 19:12:02 C 02 55 13.22 +33 03 25.0 V Z99
2021-01-12 19:13:49 C 02 55 11.79 +33 03 53.0 V Z99
2021-01-12 19:15:28 C 02 55 10.51 +33 04 19.3 V Z99
2021-01-12 19:17:12 C 02 55 09.13 +33 04 46.9 V Z99
2021-01-12 19:18:56 C 02 55 07.78 +33 05 14.2 V Z99
2021-01-13 06:51:52 C 02 46 13.643 +36 16 24.51 U F52
2021-01-13 07:07:32 C 02 45 58.990 +36 20 41.50 U F52
2021-01-13 07:23:13 C 02 45 44.277 +36 24 58.54 U F52
2021-01-14 08:27:14 C 02 21 17.01 +43 43 33.4 V T05
2021-01-14 08:32:32 C 02 21 10.21 +43 45 07.3 V T05
2021-01-14 08:41:07 C 02 20 59.69 +43 47 34.6 V T05
2021-01-14 09:04:55 C 02 20 30.07 +43 54 24.6 V T05
2021-01-15 03:00:36 C 01 57 16.97 +49 23 13.5 V G96
2021-01-15 03:09:05 C 01 57 02.93 +49 25 45.3 V G96
2021-01-15 03:17:31 C 01 56 49.05 +49 28 15.7 V G96