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
2024-08-06 08:47:28 C 00 43 39.46 +37 54 17.3 V H21
2024-10-23 02:24:39 C 16 50 17.81 +34 52 18.6 V 291
2024-10-23 02:45:21 C 16 50 15.30 +34 51 29.4 V 291
2024-10-23 03:11:41 C 16 50 12.21 +34 50 28.3 V 291