IAA RAS IAA Minor Planet Database

2021 AQ4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1683562000
Semi-major axis (a)1.1709656000 AU
Inclination (i)20.77331000°
Long. of Asc. Node (Ω)291.19714000°
Arg. of Perihelion (ω)109.58143000°
Mean Anomaly (M)355.38654000°
Mean Motion (n)0.7778357100°/day
Perihelion dist (q)0.97382630 AU
Aphelion dist (Q)1.36810490 AU
Orbital Period1.26711550 yr
Physical Parameters
H (abs. magnitude)24.16
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.910″
Uncertainty7
Orbit TypeApollo
MOID0.085621 AU
Observations Used43
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-01-17
Observations (46)
Date Type RA Dec Mag Band Observatory
2021-01-10 09:14:34 C 09 02 46.08 +12 08 52.8 – V G96
2021-01-10 09:21:55 C 09 02 43.39 +12 08 02.4 – V G96
2021-01-10 09:29:15 C 09 02 40.74 +12 07 12.5 – V G96
2021-01-10 09:36:36 C 09 02 38.00 +12 06 22.0 – V G96
2021-01-10 11:41:32 C 09 01 52.38 +11 52 02.3 – V I52
2021-01-10 11:42:58 C 09 01 51.86 +11 51 52.1 – V I52
2021-01-10 11:44:24 C 09 01 51.38 +11 51 42.9 – V I52
2021-01-10 11:45:49 C 09 01 50.82 +11 51 32.9 – V I52
2021-01-10 20:29:01 C 08 58 58.16 +10 51 50.3 – V L01
2021-01-10 20:33:33 C 08 58 56.62 +10 51 19.8 – V L01
2021-01-10 20:38:05 C 08 58 54.96 +10 50 49.2 – V L01
2021-01-10 20:47:11 C 08 58 51.83 +10 49 47.0 – V L01
2021-01-10 22:19:09 C 08 58 20.24 +10 39 27.8 – V I93
2021-01-10 22:31:57 C 08 58 15.80 +10 38 02.0 – V I93
2021-01-10 22:44:44 C 08 58 11.30 +10 36 35.7 – V I93
2021-01-10 22:50:32 C 08 58 08.35 +10 35 50.6 – V 033
2021-01-10 22:52:26 C 08 58 07.67 +10 35 37.8 – V 033
2021-01-10 22:54:21 C 08 58 07.00 +10 35 24.8 – V 033
2021-01-11 01:49:08 C 08 57 05.46 +10 15 53.6 – V 204
2021-01-11 02:01:38 C 08 57 01.03 +10 14 28.7 – V 204
2021-01-11 02:14:07 C 08 56 56.65 +10 13 05.1 – V 204
2021-01-11 07:09:01 C 08 55 21.17 +09 40 24.7 – V I52
2021-01-11 07:10:26 C 08 55 20.64 +09 40 15.2 – V I52
2021-01-11 07:11:52 C 08 55 20.17 +09 40 05.9 – V I52
2021-01-11 07:13:17 C 08 55 19.66 +09 39 56.7 – V I52
2021-01-12 06:37:24 C 08 47 41.78 +07 06 28.8 – V I52
2021-01-12 06:38:49 C 08 47 41.28 +07 06 18.6 – V I52
2021-01-12 06:40:14 C 08 47 40.82 +07 06 08.6 – V I52
2021-01-12 06:41:40 C 08 47 40.36 +07 06 00.0 – V I52
2021-01-12 07:03:45 C 08 47 29.76 +07 05 01.5 – u 807
2021-01-12 07:10:05 C 08 47 27.61 +07 04 20.7 – u 807
2021-01-12 07:16:25 C 08 47 25.47 +07 03 40.2 – u 807
2021-01-14 10:29:52 C 08 31 57.010 +01 49 59.17 – U F51
2021-01-14 10:47:16 C 08 31 51.649 +01 48 18.75 – U F51
2021-01-14 11:04:52 C 08 31 46.260 +01 46 37.86 – U F51
2021-01-14 11:22:24 C 08 31 40.850 +01 44 56.88 – U F51
2021-01-16 06:23:09 C 08 19 56.84 -02 09 07.6 – V I52
2021-01-16 06:24:58 C 08 19 56.38 -02 09 16.8 – V I52
2021-01-16 06:26:47 C 08 19 55.84 -02 09 25.8 – V I52
2021-01-16 06:28:36 C 08 19 55.32 -02 09 35.0 – V I52
2021-01-17 06:03:11 C 08 13 54.28 -04 05 03.9 – u 807
2021-01-17 06:11:55 C 08 13 51.98 -04 05 45.4 – u 807
2021-01-17 06:20:38 C 08 13 49.68 -04 06 27.0 – u 807
2021-02-04 03:58:58 C 07 10 36.95 -21 42 55.3 – V 807
2021-02-04 04:15:35 C 07 10 35.57 -21 43 11.2 – V 807
2021-02-04 04:32:10 C 07 10 34.23 -21 43 27.2 – V 807