IAA RAS IAA Minor Planet Database

2021 AP2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7091245669 ± 9.34e-05
Semi-major axis (a)2.2305174345 AU ± 6.39e-04
Inclination (i)7.20438382° ± 7.56e-05
Long. of Asc. Node (Ω)322.65150938° ± 1.14e-02
Arg. of Perihelion (ω)227.90109209° ± 1.21e-02
Mean Anomaly (M)143.45655280° ± 2.22e-01
Mean Motion (n)0.2958719833°/day ± 1.27e-04
Perihelion dist (q)0.64880272 AU ± 2.79e-04
Aphelion dist (Q)3.81223214 AU ± 1.11e-03
Orbital Period3.33125926 yr ± 1.43e-03
Physical Parameters
H (abs. magnitude)20.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.273″
Uncertainty3
Orbit TypeApollo
MOID0.063660 AU
Observations Used52
Oppositions1
Arc Total2021-2021
First Observation Used2021-01-06
Last Observation Used2021-02-06
Observations (52)
Date Type RA Dec Mag Band Observatory
2021-01-06 04:01:55 C 02 49 28.16 +34 49 54.1 – V G96
2021-01-06 04:09:29 C 02 49 27.06 +34 49 46.8 – V G96
2021-01-06 04:17:01 C 02 49 25.96 +34 49 39.7 – V G96
2021-01-06 05:57:39 C 02 49 11.35 +34 48 01.8 – V I52
2021-01-06 06:00:05 C 02 49 11.05 +34 47 59.4 – V I52
2021-01-06 06:02:30 C 02 49 10.67 +34 47 57.0 – V I52
2021-01-06 06:04:55 C 02 49 10.35 +34 47 54.9 – V I52
2021-01-07 01:35:32 C 02 46 29.33 +34 29 09.3 – V I52
2021-01-07 01:37:57 C 02 46 28.98 +34 29 06.0 – V I52
2021-01-07 01:40:21 C 02 46 28.62 +34 29 04.2 – V I52
2021-01-07 01:42:46 C 02 46 28.28 +34 29 01.9 – V I52
2021-01-07 03:28:31 C 02 46 13.00 +34 27 17.7 – q 858
2021-01-07 03:38:32 C 02 46 11.59 +34 27 08.4 – q 858
2021-01-07 03:48:34 C 02 46 10.16 +34 26 58.2 – q 858
2021-01-08 03:22:18 C 02 42 57.94 +34 03 43.1 – V I52
2021-01-08 03:26:16 C 02 42 57.39 +34 03 39.5 – V I52
2021-01-08 03:30:48 C 02 42 56.74 +34 03 34.5 – V I52
2021-01-08 03:34:45 C 02 42 56.24 +34 03 30.3 – V I52
2021-01-08 18:11:08 C 02 40 59.20 +33 48 44.7 – V L01
2021-01-08 18:15:38 C 02 40 58.62 +33 48 40.6 – V L01
2021-01-08 18:21:16 C 02 40 57.84 +33 48 34.9 – V L01
2021-01-09 06:38:45 C 02 39 19.876 +33 36 11.79 – U F51
2021-01-09 06:56:20 C 02 39 17.449 +33 35 53.79 – U F51
2021-01-09 07:13:53 C 02 39 15.032 +33 35 35.36 – U F51
2021-01-10 03:19:03 C 02 36 38.36 +33 14 47.4 – V I52
2021-01-10 03:20:52 C 02 36 38.17 +33 14 45.5 – V I52
2021-01-11 03:00:47 C 02 33 36.69 +32 49 53.0 – V I52
2021-01-11 03:03:12 C 02 33 36.39 +32 49 50.4 – V I52
2021-01-11 03:05:37 C 02 33 36.13 +32 49 47.6 – V I52
2021-01-11 03:08:02 C 02 33 35.79 +32 49 45.0 – V I52
2021-01-12 02:14:10 C 02 30 42.84 +32 25 02.7 – V I52
2021-01-12 02:16:35 C 02 30 42.54 +32 25 00.1 – V I52
2021-01-12 02:19:01 C 02 30 42.22 +32 24 57.5 – V I52
2021-01-12 02:32:08 C 02 30 40.53 +32 24 43.6 – V I52
2021-01-13 03:53:53 C 02 27 34.22 +31 57 08.4 – o 691
2021-01-13 04:02:09 C 02 27 33.20 +31 56 59.2 – o 691
2021-01-13 04:10:25 C 02 27 32.12 +31 56 49.3 – o 691
2021-01-14 03:55:30 C 02 24 42.27 +31 30 35.8 – V G96
2021-01-14 04:05:12 C 02 24 41.07 +31 30 24.8 – V G96
2021-01-14 04:14:51 C 02 24 39.90 +31 30 14.3 – V G96
2021-01-14 04:24:27 C 02 24 38.73 +31 30 03.2 – V G96
2021-01-17 03:42:35 C 02 16 31.73 +30 09 11.8 – V I52
2021-01-17 03:44:59 C 02 16 31.42 +30 09 08.5 – V I52
2021-01-17 03:47:24 C 02 16 31.18 +30 09 05.8 – V I52
2021-01-17 03:49:49 C 02 16 30.86 +30 09 03.1 – V I52
2021-01-31 02:05:14 C 01 43 32.48 +23 07 46.1 – V I52
2021-01-31 02:09:28 C 01 43 32.06 +23 07 39.8 – V I52
2021-02-05 02:46:36 C 01 31 50.04 +20 09 03.0 – V I52
2021-02-05 02:50:53 C 01 31 49.58 +20 08 57.6 – V I52
2021-02-05 02:55:09 C 01 31 49.08 +20 08 50.2 – V I52