IAA RAS IAA Minor Planet Database

2021 AK1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5016879570 ± 2.71e-05
Semi-major axis (a)2.0156102521 AU ± 1.11e-04
Inclination (i)2.97656405° ± 1.46e-04
Long. of Asc. Node (Ω)340.69655397° ± 1.20e-04
Arg. of Perihelion (ω)110.32131976° ± 1.42e-04
Mean Anomaly (M)257.72667228° ± 5.09e-02
Mean Motion (n)0.3444311630°/day ± 2.86e-05
Perihelion dist (q)1.00440286 AU ± 7.78e-05
Aphelion dist (Q)3.02681764 AU ± 1.76e-04
Orbital Period2.86160600 yr ± 2.37e-04
Physical Parameters
H (abs. magnitude)23.91
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.291″
Uncertainty2
Orbit TypeApollo
MOID0.051405 AU
Observations Used72
Oppositions1
Arc Total2021-2021
First Observation Used2021-01-04
Last Observation Used2021-02-20
Observations (72)
Date Type RA Dec Mag Band Observatory
2021-01-04 13:29:38 C 11 03 09.513 +64 19 08.62 – U F51
2021-01-04 13:50:12 C 11 03 09.283 +64 16 11.16 – U F51
2021-01-05 00:29:41 C 11 04 05.99 +62 42 11.7 – V L01
2021-01-05 01:47:27 C 11 04 06.91 +62 31 21.0 – V L01
2021-01-05 01:50:07 C 11 04 06.98 +62 30 58.5 – V L01
2021-01-05 01:56:34 C 11 04 06.94 +62 30 04.1 – V L01
2021-01-05 09:00:27 C 11 04 36.36 +61 30 07.6 – q H36
2021-01-05 09:24:34 C 11 04 36.13 +61 26 47.3 – q H36
2021-01-05 09:48:40 C 11 04 35.90 +61 23 26.3 – q H36
2021-01-05 20:31:54 C 11 05 15.92 +59 53 40.2 – V N88
2021-01-05 20:32:53 C 11 05 15.79 +59 53 32.2 – V N88
2021-01-06 09:07:18 C 11 05 53.72 +58 11 38.2 – V 291
2021-01-06 09:08:31 C 11 05 53.71 +58 11 28.7 – V 291
2021-01-06 09:09:44 C 11 05 53.69 +58 11 19.2 – V 291
2021-01-06 09:59:10 C 11 05 52.37 +58 04 54.3 – V I52
2021-01-06 09:59:31 C 11 05 52.44 +58 04 51.5 – V I52
2021-01-06 09:59:53 C 11 05 52.35 +58 04 49.0 – V I52
2021-01-06 10:00:14 C 11 05 52.35 +58 04 46.1 – V I52
2021-01-06 14:12:29 C 11 05 57.514 +57 31 52.80 – U F51
2021-01-06 14:34:54 C 11 05 56.652 +57 28 55.37 – U F51
2021-01-06 14:57:20 C 11 05 55.790 +57 25 57.06 – U F51
2021-01-08 12:37:57 C 11 07 11.19 +51 44 37.0 – V T08
2021-01-08 12:41:56 C 11 07 11.00 +51 44 09.2 – V T08
2021-01-08 12:45:54 C 11 07 10.90 +51 43 41.7 – V T08
2021-01-08 12:56:31 C 11 07 10.38 +51 42 28.1 – V T08
2021-01-09 11:18:31 C 11 07 17.98 +49 09 27.4 – V I52
2021-01-09 11:18:52 C 11 07 17.94 +49 09 25.1 – V I52
2021-01-09 11:19:13 C 11 07 17.89 +49 09 22.5 – V I52
2021-01-09 11:19:35 C 11 07 17.85 +49 09 20.0 – V I52
2021-01-10 00:31:49 C 11 07 25.54 +47 42 47.6 – o K88
2021-01-10 00:32:50 C 11 07 25.55 +47 42 41.2 – o K88
2021-01-10 00:33:55 C 11 07 25.44 +47 42 34.0 – o K88
2021-01-10 00:50:52 C 11 07 24.95 +47 40 48.9 – o K88
2021-01-10 00:51:54 C 11 07 24.81 +47 40 42.3 – o K88
2021-01-10 00:53:00 C 11 07 24.83 +47 40 35.6 – o K88
2021-01-10 07:37:31 C 11 07 30.26 +46 58 09.8 – V I52
2021-01-10 07:37:52 C 11 07 30.31 +46 58 07.1 – V I52
2021-01-10 07:38:34 C 11 07 30.32 +46 58 03.4 – V I52
2021-01-11 07:56:52 C 11 07 24.38 +44 31 20.3 – V I52
2021-01-11 07:57:13 C 11 07 24.37 +44 31 18.6 – V I52
2021-01-11 07:57:34 C 11 07 24.35 +44 31 16.9 – V I52
2021-01-11 07:59:00 C 11 07 23.99 +44 31 08.1 – V I52
2021-01-12 08:47:49 C 11 07 09.51 +42 11 41.3 – V I52
2021-01-12 08:48:26 C 11 07 09.55 +42 11 37.4 – V I52
2021-01-12 08:49:02 C 11 07 09.39 +42 11 33.7 – V I52
2021-01-14 09:22:57 C 11 06 24.77 +38 05 53.6 – V G96
2021-01-14 09:31:06 C 11 06 24.34 +38 05 15.3 – V G96
2021-01-14 09:39:15 C 11 06 23.92 +38 04 37.7 – V G96
2021-01-14 09:47:23 C 11 06 23.50 +38 04 00.0 – V G96
2021-01-17 10:55:12 C 11 04 42.84 +32 54 12.7 – V I52