2009 WJ1

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6784833568 ± 2.43e-05
Semi-major axis (a)2.4551408303 AU ± 1.05e-04
Inclination (i)0.62348114° ± 7.69e-05
Long. of Asc. Node (Ω)276.54864679° ± 1.47e-02
Arg. of Perihelion (ω)195.15275901° ± 1.45e-02
Mean Anomaly (M)38.87792431° ± 1.12e-01
Mean Motion (n)0.2562109359°/day ± 1.64e-05
Perihelion dist (q)0.78936864 AU ± 6.86e-05
Aphelion dist (Q)4.12091302 AU ± 1.86e-04
Orbital Period3.84693292 yr ± 2.46e-04
Physical Parameters
H (abs. magnitude)21.16
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.382″
Uncertainty3
Orbit TypeApollo
MOID0.007634 AU
Observations Used52
Oppositions1
Arc Total2009-2010
First Observation Used2009-09-29
Last Observation Used2010-02-15
Observations (53)
Date Type RA Dec Mag Band Observatory
2010-02-13 13:08:45 C 16 25 31.74 -23 13 37.5 o 291
2010-02-15 12:09:29 C 16 24 13.37 -23 11 21.1 o 291
2010-02-15 12:31:16 C 16 24 12.68 -23 11 20.5 o 291