280244 (2002 WP11)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4414931937 ± 2.83e-08
Semi-major axis (a)2.1250444858 AU ± 1.22e-08
Inclination (i)5.39387899° ± 3.51e-06
Long. of Asc. Node (Ω)267.84208950° ± 3.55e-05
Arg. of Perihelion (ω)56.22795741° ± 3.75e-05
Mean Anomaly (M)199.95068995° ± 2.07e-05
Mean Motion (n)0.3181707393°/day ± 2.74e-09
Perihelion dist (q)1.18685181 AU ± 6.06e-08
Aphelion dist (Q)3.06323716 AU ± 6.27e-08
Orbital Period3.09779047 yr ± 2.67e-08
Physical Parameters
H (abs. magnitude)18.22
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.354″
Uncertainty0
Orbit TypeAmor
MOID0.190781 AU
Observations Used281
Oppositions15
Arc Total2002-2024
First Observation Used2002-11-24
Last Observation Used2024-12-30
Observations (306)
Date Type RA Dec Mag Band Observatory
2024-12-22 10:04:23 C 07 19 45.294 +20 03 53.69 X F51
2024-12-22 10:20:11 C 07 19 44.442 +20 03 54.20 X F51
2024-12-22 10:23:13 C 07 19 44.274 +20 03 54.08 X F51
2024-12-30 08:53:25 C 07 09 10.337 +20 08 03.57 X F52
2024-12-30 09:30:04 C 07 09 08.196 +20 08 04.36 X F52
2024-12-30 09:48:27 C 07 09 07.117 +20 08 04.48 X F52