2021 OS

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4325481668 ± 8.35e-08
Semi-major axis (a)0.8106817051 AU ± 2.10e-09
Inclination (i)15.45191334° ± 1.08e-05
Long. of Asc. Node (Ω)294.31017151° ± 4.13e-06
Arg. of Perihelion (ω)218.10299807° ± 4.50e-06
Mean Anomaly (M)90.96939209° ± 1.83e-05
Mean Motion (n)1.3503200546°/day ± 5.26e-09
Perihelion dist (q)0.46002282 AU ± 6.77e-08
Aphelion dist (Q)1.16134059 AU ± 6.78e-08
Orbital Period0.72992050 yr ± 2.84e-09
Physical Parameters
H (abs. magnitude)22.04
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.301″
Uncertainty0
Orbit TypeAten
MOID0.010486 AU
Observations Used189
Oppositions4
Arc Total2013-2024
First Observation Used2013-08-09
Last Observation Used2024-10-23
Observations (204)
Date Type RA Dec Mag Band Observatory
2021-07-20 12:28:11 C 22 58 22.16 +28 57 38.9 V T05
2021-07-20 12:32:11 C 22 58 16.03 +28 57 47.9 V T05
2021-07-20 12:36:08 C 22 58 10.03 +28 57 56.1 V T05
2021-07-20 12:44:16 C 22 57 57.60 +28 58 13.6 V T05
2021-07-20 14:03:21 C 22 56 07.98 +28 59 37.1 q 900
2021-07-20 14:08:58 C 22 55 59.59 +28 59 49.9 q 900
2021-07-20 14:14:53 C 22 55 50.71 +29 00 03.0 q 900
2021-07-20 16:39:00 C 22 52 12.71 +29 04 57.6 q Q21
2021-07-20 16:44:04 C 22 52 05.08 +29 05 07.0 q Q21
2021-07-20 21:06:40 C 22 45 46.80 +29 10 58.5 V B72
2021-07-20 21:10:41 C 22 45 40.57 +29 11 09.9 V G34
2021-07-20 21:16:24 C 22 45 32.25 +29 11 20.9 V G34
2021-07-20 21:22:05 C 22 45 24.24 +29 11 25.7 V B72
2021-07-20 21:22:07 C 22 45 23.84 +29 11 30.0 V G34
2021-07-20 21:27:49 C 22 45 15.41 +29 11 39.9 V G34
2021-07-20 21:28:10 C 22 45 15.28 +29 11 36.0 V B72
2021-07-20 21:31:02 C 22 45 11.06 +29 11 40.4 V B72
2021-07-20 21:51:12 C 22 44 41.67 +29 12 06.8 V Z80
2021-07-20 21:58:25 C 22 44 31.10 +29 12 18.9 V Z80
2021-07-20 22:05:12 C 22 44 21.08 +29 12 30.1 V Z80
2021-07-20 22:05:59 C 22 44 20.06 +29 12 30.6 V J95
2021-07-20 22:08:47 C 22 44 15.93 +29 12 35.3 V J95
2021-07-20 22:12:37 C 22 44 10.32 +29 12 41.9 V J95
2021-07-20 22:14:15 C 22 44 07.46 +29 12 54.1 V B72
2021-07-20 22:15:36 C 22 44 05.95 +29 12 46.7 V J95
2021-07-20 22:17:07 C 22 44 03.27 +29 12 58.2 V B72
2021-07-20 22:23:20 C 22 43 54.64 +29 13 01.3 V J69
2021-07-20 22:25:30 C 22 43 50.96 +29 13 12.3 V B72
2021-07-20 22:26:55 C 22 43 48.83 +29 13 14.4 V B72
2021-07-20 22:28:26 C 22 43 46.59 +29 13 17.2 V B72
2021-07-20 22:29:10 C 22 43 46.09 +29 13 10.6 V J69
2021-07-20 22:29:47 C 22 43 44.60 +29 13 19.5 V B72
2021-07-20 22:34:58 C 22 43 37.56 +29 13 20.2 V J69
2021-07-20 22:40:47 C 22 43 29.01 +29 13 29.9 V J69
2021-07-20 22:41:03 V 22 43 28.66 +29 13 53.4 V 247
2021-07-20 22:41:03 v 1 009.1183 +44.7717 247
2021-07-20 22:45:21 V 22 43 22.35 +29 14 00.8 V 247
2021-07-20 22:45:21 v 1 009.1183 +44.7717 247
2021-07-20 22:49:53 V 22 43 15.64 +29 14 07.2 V 247
2021-07-20 22:49:53 v 1 009.1183 +44.7717 247
2021-07-20 23:37:56 C 22 42 03.74 +29 15 09.5 V K87
2021-07-20 23:40:47 C 22 41 59.50 +29 15 14.3 V K87
2021-07-20 23:47:59 C 22 41 48.85 +29 15 25.1 V K87
2021-07-20 23:52:09 C 22 41 42.65 +29 15 31.4 V K74
2021-07-20 23:55:12 C 22 41 38.13 +29 15 36.0 V K74
2021-07-20 23:58:53 C 22 41 32.68 +29 15 41.3 V K74
2021-07-21 00:03:44 C 22 41 25.47 +29 15 48.5 V K74
2021-07-21 00:08:52 C 22 41 17.87 +29 15 55.9 V K74
2021-07-21 00:13:19 C 22 41 11.29 +29 16 02.3 V K74
2021-07-21 00:18:12 C 22 41 04.06 +29 16 09.1 V K74