IAA RAS IAA Minor Planet Database

2021 AL1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5754731210
Semi-major axis (a)1.9894298306 AU
Inclination (i)0.19663906°
Long. of Asc. Node (Ω)58.91487450°
Arg. of Perihelion (ω)112.81406978°
Mean Anomaly (M)247.23561308°
Mean Motion (n)0.3513188100°/day
Perihelion dist (q)0.84456980 AU
Aphelion dist (Q)3.13373860 AU
Orbital Period2.80545090 yr
Physical Parameters
H (abs. magnitude)25.28
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.397″
Uncertainty—
Orbit TypeApollo
MOID0.000630 AU
Observations Used66
Oppositions1
Arc Total2021-2021
First Observation Used—
Last Observation Used2021-01-17
Observations (69)
Date Type RA Dec Mag Band Observatory
2021-01-04 09:35:37 C 07 38 53.28 +23 12 04.9 – V G96
2021-01-04 09:43:03 C 07 38 54.63 +23 12 03.6 – V G96
2021-01-04 09:50:28 C 07 38 55.94 +23 12 02.1 – V G96
2021-01-04 09:57:54 C 07 38 57.34 +23 12 01.4 – V G96
2021-01-04 11:43:59 C 07 39 17.34 +23 11 41.2 – V V06
2021-01-04 11:47:50 C 07 39 18.07 +23 11 40.8 – V V06
2021-01-04 11:51:41 C 07 39 18.83 +23 11 39.9 – V V06
2021-01-05 05:05:16 C 07 43 14.42 +23 09 34.7 – V I52
2021-01-05 05:07:43 C 07 43 14.96 +23 09 34.6 – V I52
2021-01-05 05:10:10 C 07 43 15.46 +23 09 33.0 – V I52
2021-01-05 05:12:37 C 07 43 15.95 +23 09 33.6 – V I52
2021-01-06 07:46:41 C 07 49 59.63 +23 04 58.5 – V I52
2021-01-06 07:48:30 C 07 50 00.09 +23 04 58.2 – V I52
2021-01-06 07:50:19 C 07 50 00.59 +23 04 57.3 – V I52
2021-01-06 07:52:08 C 07 50 01.04 +23 04 57.3 – V I52
2021-01-07 05:15:36 C 07 56 36.04 +22 59 10.1 – V 291
2021-01-07 05:19:09 C 07 56 37.17 +22 59 09.8 – V 291
2021-01-07 05:22:43 C 07 56 38.27 +22 59 09.1 – V 291
2021-01-07 14:25:59 C 07 59 33.734 +22 56 26.76 – V T12
2021-01-07 14:26:44 C 07 59 33.983 +22 56 26.38 – V T12
2021-01-08 04:11:35 C 08 04 57.39 +22 50 18.6 – V 291
2021-01-08 04:15:16 C 08 04 58.80 +22 50 17.5 – V 291
2021-01-08 04:18:56 C 08 05 00.20 +22 50 16.5 – V 291
2021-01-08 07:46:22 C 08 06 18.67 +22 48 57.8 – V G96
2021-01-08 07:53:46 C 08 06 21.48 +22 48 54.4 – V G96
2021-01-08 08:01:11 C 08 06 24.30 +22 48 50.8 – V G96
2021-01-08 08:08:36 C 08 06 27.17 +22 48 47.3 – V G96
2021-01-09 04:30:59 C 08 15 47.56 +22 36 29.6 – V 291
2021-01-09 04:33:50 C 08 15 48.93 +22 36 28.0 – V 291
2021-01-09 04:36:44 C 08 15 50.30 +22 36 26.3 – V 291
2021-01-10 07:55:24 C 08 31 17.75 +22 12 00.4 – o 691
2021-01-10 08:01:24 C 08 31 21.42 +22 11 52.9 – o 691
2021-01-10 08:07:24 C 08 31 25.06 +22 11 46.2 – o 691
2021-01-10 08:29:11 C 08 31 38.23 +22 11 19.4 – V I52
2021-01-10 08:32:27 C 08 31 40.23 +22 11 15.8 – V I52
2021-01-10 08:35:43 C 08 31 42.23 +22 11 11.6 – V I52
2021-01-10 08:36:20 C 08 31 42.60 +22 11 11.0 – V I52
2021-01-10 20:40:58 C 08 40 16.33 +21 54 00.1 – V 033
2021-01-10 20:42:08 C 08 40 17.18 +21 53 58.5 – V 033
2021-01-10 20:43:17 C 08 40 18.02 +21 53 57.0 – V 033
2021-01-11 06:36:32 C 08 48 05.46 +21 38 40.9 – V I52
2021-01-11 06:37:58 C 08 48 06.54 +21 38 40.6 – V I52
2021-01-11 06:39:24 C 08 48 07.64 +21 38 38.1 – V I52
2021-01-11 06:39:45 C 08 48 07.90 +21 38 37.1 – V I52
2021-01-12 04:57:12 C 09 09 25.59 +20 46 38.2 – V I52
2021-01-12 04:57:28 C 09 09 25.78 +20 46 38.3 – V I52
2021-01-12 04:57:45 C 09 09 25.97 +20 46 37.5 – V I52
2021-01-12 04:58:01 C 09 09 26.36 +20 46 36.8 – V I52
2021-01-12 08:52:19 C 09 13 36.20 +20 35 21.2 – o 691
2021-01-12 08:55:17 C 09 13 39.34 +20 35 11.7 – o 691