2021 AO

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6450819356 ± 1.35e-04
Semi-major axis (a)2.6730414813 AU ± 1.03e-03
Inclination (i)4.16445277° ± 4.59e-04
Long. of Asc. Node (Ω)260.14137885° ± 1.61e-03
Arg. of Perihelion (ω)149.96554223° ± 1.85e-03
Mean Anomaly (M)49.91189055° ± 2.37e-01
Mean Motion (n)0.2255296929°/day ± 1.30e-04
Perihelion dist (q)0.94871071 AU ± 5.14e-04
Aphelion dist (Q)4.39737225 AU ± 1.73e-03
Orbital Period4.37027280 yr ± 2.52e-03
Physical Parameters
H (abs. magnitude)22.80
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.249″
Uncertainty3
Orbit TypeApollo
MOID0.005461 AU
Observations Used71
Oppositions1
Arc Total2021-2021
First Observation Used2021-01-03
Last Observation Used2021-01-31
Observations (77)
Date Type RA Dec Mag Band Observatory
2021-01-03 05:29:54 C 03 14 42.219 +09 46 17.91 U F52
2021-01-03 06:01:20 C 03 14 57.008 +09 46 51.44 U F52
2021-01-03 08:00:29 C 03 15 51.16 +09 48 41.6 V 291
2021-01-03 08:08:41 C 03 15 55.06 +09 48 50.0 V 291
2021-01-03 08:16:53 C 03 15 58.98 +09 48 58.1 V 291
2021-01-03 18:39:08 C 03 21 00.58 +09 59 28.5 V L01
2021-01-03 18:49:16 C 03 21 05.33 +09 59 38.9 V L01
2021-01-03 18:54:24 C 03 21 07.72 +09 59 44.5 V L01
2021-01-03 18:59:27 C 03 21 10.04 +09 59 49.1 V L01
2021-01-04 00:25:21 C 03 23 44.85 +10 05 16.1 u H21
2021-01-04 00:33:43 C 03 23 48.68 +10 05 24.5 u H21
2021-01-04 00:35:49 C 03 23 49.65 +10 05 26.7 u H21
2021-01-04 03:23:57 C 03 25 07.46 +10 08 16.7 V I52
2021-01-04 03:26:33 C 03 25 08.62 +10 08 19.3 V I52
2021-01-04 03:32:41 C 03 25 11.40 +10 08 25.2 V I52
2021-01-04 06:26:20 C 03 26 32.41 +10 11 23.2 o F65
2021-01-04 06:27:25 C 03 26 32.92 +10 11 24.0 o F65
2021-01-04 06:28:54 C 03 26 33.56 +10 11 26.1 o F65
2021-01-05 01:42:13 C 03 35 20.10 +10 28 53.2 q 858
2021-01-05 01:54:14 C 03 35 25.34 +10 29 04.1 q 858
2021-01-05 02:07:27 C 03 35 31.10 +10 29 15.9 q 858
2021-01-05 04:31:31 C 03 36 33.58 +10 31 24.6 V I52
2021-01-05 04:33:21 C 03 36 34.47 +10 31 27.2 V I52
2021-01-05 04:35:11 C 03 36 35.23 +10 31 28.5 V I52
2021-01-06 02:27:55 C 03 46 07.59 +10 49 44.7 V I52
2021-01-06 02:29:44 C 03 46 08.39 +10 49 46.0 V I52
2021-01-06 02:31:32 C 03 46 09.13 +10 49 47.7 V I52
2021-01-06 02:33:21 C 03 46 09.90 +10 49 48.9 V I52
2021-01-07 03:28:32 C 03 56 28.05 +11 08 40.3 V 291
2021-01-07 03:32:13 C 03 56 29.57 +11 08 43.3 V 291
2021-01-07 04:56:13 C 03 57 04.531 +11 09 52.15 V T12
2021-01-07 04:57:04 C 03 57 04.862 +11 09 52.73 V T12
2021-01-07 06:53:42 C 03 57 47.96 +11 11 04.1 V I52
2021-01-07 06:55:32 C 03 57 48.68 +11 11 05.5 V I52
2021-01-07 06:57:21 C 03 57 49.38 +11 11 06.6 V I52
2021-01-07 06:59:10 C 03 57 50.09 +11 11 08.4 V I52
2021-01-07 07:35:51 C 03 58 06.355 +11 11 45.74 U F52
2021-01-07 07:51:31 C 03 58 12.405 +11 11 56.78 U F52
2021-01-07 08:07:09 C 03 58 18.443 +11 12 07.52 U F52
2021-01-08 02:46:07 C 04 05 37.56 +11 24 32.9 V 291
2021-01-08 02:51:07 C 04 05 39.38 +11 24 35.9 V 291
2021-01-08 02:56:09 C 04 05 41.23 +11 24 39.4 V 291
2021-01-09 03:54:42 C 04 14 58.24 +11 39 59.2 V 291
2021-01-09 04:02:12 C 04 15 00.89 +11 40 03.7 V 291
2021-01-09 04:09:44 C 04 15 03.50 +11 40 07.9 V 291
2021-01-10 02:52:12 C 04 23 04.57 +11 52 41.7 V I52
2021-01-10 02:57:02 C 04 23 06.05 +11 52 43.5 V I52
2021-01-10 02:59:27 C 04 23 06.88 +11 52 42.6 V I52
2021-01-10 05:07:59 C 04 23 49.46 +11 53 51.9 V G96
2021-01-10 05:15:20 C 04 23 51.87 +11 53 56.2 V G96