438897 (2009 WN)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2215401764 ± 2.38e-08
Semi-major axis (a)1.3800720927 AU ± 1.72e-09
Inclination (i)32.78799951° ± 6.61e-06
Long. of Asc. Node (Ω)249.32824765° ± 3.81e-06
Arg. of Perihelion (ω)236.17749230° ± 9.96e-06
Mean Anomaly (M)282.41116775° ± 1.05e-05
Mean Motion (n)0.6079384549°/day ± 1.13e-09
Perihelion dist (q)1.07433068 AU ± 3.29e-08
Aphelion dist (Q)1.68581351 AU ± 3.29e-08
Orbital Period1.62125997 yr ± 3.02e-09
Physical Parameters
H (abs. magnitude)18.84
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.251″
Uncertainty0
Orbit TypeAmor
MOID0.173497 AU
Observations Used217
Oppositions9
Arc Total2002-2025
First Observation Used2002-06-21
Last Observation Used2025-12-02
Observations (258)
Date Type RA Dec Mag Band Observatory
2025-11-26 05:44:02 C 21 47 35.484 +25 25 16.40 X F52
2025-11-29 03:30:40 C 21 55 46.790 +24 15 01.48 V G96
2025-11-29 03:38:48 C 21 55 47.766 +24 14 53.70 V G96
2025-11-29 03:46:58 C 21 55 48.698 +24 14 45.28 V G96
2025-11-29 03:55:08 C 21 55 49.609 +24 14 37.90 V G96
2025-12-02 04:58:30 C 22 04 36.314 +23 02 40.03 X F52
2025-12-02 05:08:15 C 22 04 37.469 +23 02 30.43 X F52
2025-12-02 05:17:55 C 22 04 38.610 +23 02 20.59 X F52