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
2021-07-21 21:59:39 C 22 10 30.87 +29 29 51.8 V Z80
2021-07-21 22:04:38 C 22 10 23.94 +29 29 52.0 V Z80
2021-07-21 22:09:38 C 22 10 17.06 +29 29 53.8 V Z80
2021-07-21 23:27:18 C 22 08 28.44 +29 30 16.3 V K87
2021-07-21 23:31:00 C 22 08 23.28 +29 30 16.5 V K87
2021-07-21 23:34:42 C 22 08 18.15 +29 30 16.6 V K87
2021-07-22 00:04:26 C 22 07 38.21 +29 30 08.4 V J95
2021-07-22 00:09:18 C 22 07 31.44 +29 30 08.4 V J95
2021-07-22 00:14:00 C 22 07 24.93 +29 30 08.6 V J95
2021-07-22 00:19:18 C 22 07 17.60 +29 30 08.7 V J95
2021-07-22 21:51:36 C 21 39 23.56 +29 16 30.6 V Z80
2021-07-22 21:58:16 C 21 39 15.25 +29 16 24.1 V Z80
2021-07-22 22:04:56 C 21 39 06.88 +29 16 17.5 V Z80
2021-07-22 23:27:04 C 21 37 20.38 +29 15 11.9 V L18
2021-07-22 23:29:28 C 21 37 17.36 +29 15 09.1 V L18
2021-07-22 23:31:53 C 21 37 14.29 +29 15 06.5 V L18
2021-07-23 22:11:19 C 21 11 03.65 +28 40 02.1 V L18
2021-07-23 22:13:59 C 21 11 00.79 +28 39 56.7 V L18
2021-07-23 22:16:39 C 21 10 57.76 +28 39 52.9 V L18
2021-07-24 22:05:40 C 20 46 53.75 +27 49 02.2 V Z80
2021-07-24 22:12:20 C 20 46 47.34 +27 48 47.0 V Z80
2021-07-24 22:18:56 C 20 46 41.00 +27 48 32.5 V Z80
2021-07-26 12:02:41 C 20 15 06.57 +26 15 54.0 V F65
2021-07-26 12:03:07 C 20 15 06.24 +26 15 53.0 V F65
2021-07-26 12:03:32 C 20 15 05.91 +26 15 51.8 V F65
2021-07-28 21:19:32 C 19 40 03.91 +23 50 29.9 q 160
2021-07-28 21:22:46 C 19 40 02.19 +23 50 22.1 q 160
2021-07-28 21:25:58 C 19 40 00.47 +23 50 14.7 q 160
2021-07-29 20:35:50 C 19 29 05.97 +22 55 35.9 V A17
2021-07-29 20:47:07 C 19 29 00.84 +22 55 09.8 V A17
2021-07-29 20:58:24 C 19 28 55.68 +22 54 45.1 V A17
2021-07-29 21:32:38 C 19 28 38.58 +22 53 29.5 V L18
2021-07-29 21:37:58 C 19 28 36.12 +22 53 17.7 V L18
2021-07-29 21:43:18 C 19 28 33.70 +22 53 05.8 V L18
2021-08-03 10:05:03 C 18 53 42.19 +19 21 02.6 V T08
2021-08-03 10:09:43 C 18 53 41.02 +19 20 54.6 V T08
2021-08-03 10:19:07 C 18 53 38.62 +19 20 38.2 V T08
2021-08-03 10:51:50 C 18 53 30.44 +19 19 41.8 V T08
2021-09-04 06:39:20 C 18 13 51.826 +08 44 53.47 V T12
2021-09-04 06:41:46 C 18 13 51.847 +08 44 52.35 V T12
2021-09-04 06:44:27 C 18 13 51.880 +08 44 51.12 V T12
2021-09-05 05:52:23 C 18 14 18.07 +08 34 10.3 o 695
2021-09-05 05:58:43 C 18 14 18.17 +08 34 07.2 o 695
2021-09-05 06:05:01 C 18 14 18.27 +08 34 04.2 o 695
2021-10-15 02:05:16 C 18 55 53.80 +03 55 30.3 V 695
2021-10-15 02:26:19 C 18 55 54.95 +03 55 26.9 V 695
2021-10-15 02:47:24 C 18 55 56.11 +03 55 23.2 V 695
2024-08-05 08:30:46 C 00 44 54.09 +37 02 46.3 V H21
2024-08-05 08:41:25 C 00 44 53.47 +37 03 09.4 V H21
2024-08-06 08:27:07 C 00 43 40.64 +37 53 33.4 V H21