2021 UN3

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7598622412 ± 4.68e-07
Semi-major axis (a)2.0367441835 AU ± 3.17e-07
Inclination (i)6.09302482° ± 2.82e-05
Long. of Asc. Node (Ω)170.21815154° ± 3.85e-04
Arg. of Perihelion (ω)111.08387495° ± 3.35e-04
Mean Anomaly (M)169.67075153° ± 1.11e-04
Mean Motion (n)0.3390841963°/day ± 7.91e-08
Perihelion dist (q)0.48909918 AU ± 9.55e-07
Aphelion dist (Q)3.58438918 AU ± 1.10e-06
Orbital Period2.90673023 yr ± 6.78e-07
Physical Parameters
H (abs. magnitude)21.43
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.181″
Uncertainty0
Orbit TypeApollo
MOID0.019647 AU
Observations Used47
Oppositions2
Arc Total2021-2024
First Observation Used2021-10-15
Last Observation Used2024-06-01
Observations (52)
Date Type RA Dec Mag Band Observatory
2024-05-30 06:24:20 C 08 21 02.510 +21 08 39.39 V T14
2024-06-01 05:58:08 C 08 23 24.987 +21 12 16.88 V T14