2021 RU9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4468354138 ± 3.23e-08
Semi-major axis (a)1.7455548123 AU ± 1.34e-08
Inclination (i)22.27784763° ± 1.59e-05
Long. of Asc. Node (Ω)317.73314929° ± 1.98e-05
Arg. of Perihelion (ω)59.84138367° ± 3.05e-05
Mean Anomaly (M)279.47003274° ± 6.38e-06
Mean Motion (n)0.4273778797°/day ± 4.94e-09
Perihelion dist (q)0.96557911 AU ± 5.69e-08
Aphelion dist (Q)2.52553052 AU ± 5.97e-08
Orbital Period2.30621736 yr ± 2.66e-08
Physical Parameters
H (abs. magnitude)20.54
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.261″
Uncertainty0
Orbit TypeApollo
MOID0.097944 AU
Observations Used51
Oppositions9
Arc Total2006-2022
First Observation Used2006-01-31
Last Observation Used2022-01-07
Observations (52)
Date Type RA Dec Mag Band Observatory
2022-01-07 03:44:06 C 05 35 56.02 +68 08 51.0 V I52
2022-01-07 03:50:38 C 05 35 56.03 +68 08 32.9 V I52