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
2021-07-19 21:43:26 V 23 20 17.48 +28 18 05.1 V 247
2021-07-19 21:43:26 v 1 009.1183 +44.7717 247
2021-07-19 21:43:40 V 23 20 17.22 +28 18 06.4 V 247
2021-07-19 21:43:40 v 1 009.1183 +44.7717 247
2021-07-19 21:45:00 V 23 20 15.18 +28 18 11.1 V 247
2021-07-19 21:45:00 v 1 009.1183 +44.7717 247
2021-07-19 21:45:12 V 23 20 14.91 +28 18 11.4 V 247
2021-07-19 21:45:12 v 1 009.1183 +44.7717 247
2021-07-19 21:58:18 C 23 19 54.45 +28 18 32.3 V Z80
2021-07-19 22:11:38 C 23 19 34.62 +28 19 15.0 V Z80
2021-07-19 22:38:01 C 23 18 55.37 +28 21 06.3 V L01
2021-07-19 22:40:16 C 23 18 51.99 +28 21 13.4 V L01
2021-07-19 22:42:30 C 23 18 48.62 +28 21 20.7 V L01
2021-07-19 22:44:54 C 23 18 45.01 +28 21 28.1 V L01
2021-07-19 22:47:18 C 23 18 41.43 +28 21 35.9 V L01
2021-07-19 22:49:43 C 23 18 37.76 +28 21 43.6 V L01
2021-07-19 22:55:11 C 23 18 29.74 +28 21 33.5 V J95
2021-07-19 22:55:54 C 23 18 28.93 +28 22 04.4 V 160
2021-07-19 22:57:39 C 23 18 26.02 +28 21 41.3 V J95
2021-07-19 22:58:36 C 23 18 24.88 +28 22 12.9 V 160
2021-07-19 23:01:04 C 23 18 20.92 +28 21 52.3 V J95
2021-07-19 23:01:18 C 23 18 20.80 +28 22 21.0 V 160
2021-07-19 23:03:57 C 23 18 16.83 +28 22 29.7 V 160
2021-07-19 23:04:22 C 23 18 15.98 +28 22 02.5 V J95
2021-07-19 23:06:37 C 23 18 12.77 +28 22 37.8 V 160
2021-07-19 23:34:36 C 23 17 30.23 +28 23 33.7 V Z99
2021-07-19 23:41:53 C 23 17 19.30 +28 23 56.1 V Z99
2021-07-19 23:42:56 C 23 17 18.06 +28 24 03.8 V Z80
2021-07-19 23:43:45 C 23 17 16.46 +28 24 01.9 V Z99
2021-07-19 23:45:48 C 23 17 13.43 +28 24 08.2 V Z99
2021-07-19 23:49:37 C 23 17 07.98 +28 24 24.4 V Z80
2021-07-19 23:56:16 C 23 16 57.96 +28 24 44.9 V Z80
2021-07-20 00:11:06 C 23 16 35.31 +28 25 51.1 V K38
2021-07-20 00:14:02 C 23 16 30.87 +28 26 00.1 V K38
2021-07-20 00:16:57 C 23 16 26.44 +28 26 08.7 V K38
2021-07-20 00:39:23 C 23 15 57.43 +28 27 44.2 V G40
2021-07-20 01:09:07 C 23 15 12.44 +28 29 16.0 V G40
2021-07-20 01:19:47 C 23 14 50.67 +28 32 26.6 V L81
2021-07-20 01:32:10 C 23 14 31.64 +28 33 02.0 V L81
2021-07-20 01:44:34 C 23 14 12.59 +28 33 37.3 V L81
2021-07-20 02:57:58 C 23 12 26.53 +28 34 35.9 V G40
2021-07-20 03:12:35 C 23 12 04.13 +28 35 16.6 V G40
2021-07-20 03:37:49 C 23 11 25.44 +28 36 26.3 V G40
2021-07-20 05:53:07 C 23 08 11.22 +28 41 14.5 q H36
2021-07-20 05:55:52 C 23 08 07.04 +28 41 22.3 q H36
2021-07-20 05:58:28 C 23 08 03.12 +28 41 29.3 q H36
2021-07-20 06:53:02 C 23 06 39.56 +28 43 58.7 u H21
2021-07-20 06:55:20 C 23 06 36.07 +28 44 04.6 u H21
2021-07-20 06:57:37 C 23 06 32.59 +28 44 10.6 u H21
2021-07-20 06:59:55 C 23 06 29.10 +28 44 16.6 u H21