IAA RAS IAA Minor Planet Database

2021 OK

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2269421000
Semi-major axis (a)1.4211250000 AU
Inclination (i)22.20265000°
Long. of Asc. Node (Ω)108.42633000°
Arg. of Perihelion (ω)187.85840000°
Mean Anomaly (M)203.37533000°
Mean Motion (n)0.5817757800°/day
Perihelion dist (q)1.09861190 AU
Aphelion dist (Q)1.74363810 AU
Orbital Period1.69413660 yr
Physical Parameters
H (abs. magnitude)23.38
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.420″
Uncertainty9
Orbit TypeAmor
MOID0.082226 AU
Observations Used17
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-07-19
Observations (17)
Date Type RA Dec Mag Band Observatory
2021-07-16 04:15:27 C 20 52 45.74 -47 28 16.0 – V W94
2021-07-16 04:23:42 C 20 52 47.89 -47 29 31.8 – V W94
2021-07-16 04:31:57 C 20 52 49.93 -47 30 47.8 – V W94
2021-07-16 05:56:18 C 20 53 11.43 -47 43 34.9 – V W94
2021-07-16 06:04:07 C 20 53 13.24 -47 44 44.9 – V W94
2021-07-16 06:11:53 C 20 53 15.33 -47 45 55.1 – V W94
2021-07-17 06:50:05 C 21 00 41.01 -51 19 47.7 – V W95
2021-07-17 06:57:42 C 21 00 43.15 -51 20 49.9 – V W95
2021-07-17 07:05:24 C 21 00 45.28 -51 21 54.2 – V W95
2021-07-17 23:53:51 C 21 06 12.90 -53 37 51.4 – V L81
2021-07-18 00:22:12 C 21 06 21.17 -53 41 34.1 – V L81
2021-07-18 06:01:56 C 21 08 13.92 -54 25 27.6 – V W95
2021-07-18 06:09:46 C 21 08 16.27 -54 26 27.2 – V W95
2021-07-18 06:17:34 C 21 08 18.52 -54 27 27.7 – V W95
2021-07-19 05:22:43 C 21 16 20.54 -57 16 42.2 – V W95
2021-07-19 05:30:14 C 21 16 22.71 -57 17 34.2 – V W95
2021-07-19 05:37:43 C 21 16 25.23 -57 18 28.5 – V W95