2011 KN9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4817741952 ± 2.99e-08
Semi-major axis (a)2.2721035975 AU ± 1.26e-08
Inclination (i)19.28881090° ± 6.03e-06
Long. of Asc. Node (Ω)218.58158818° ± 1.34e-05
Arg. of Perihelion (ω)98.63900510° ± 2.08e-05
Mean Anomaly (M)59.47292978° ± 1.51e-05
Mean Motion (n)0.2877862778°/day ± 2.39e-09
Perihelion dist (q)1.17746272 AU ± 6.83e-08
Aphelion dist (Q)3.36674448 AU ± 7.05e-08
Orbital Period3.42485504 yr ± 2.85e-08
Physical Parameters
H (abs. magnitude)18.64
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.386″
Uncertainty0
Orbit TypeAmor
MOID0.364120 AU
Observations Used294
Oppositions22
Arc Total1994-2025
First Observation Used1994-12-01
Last Observation Used2025-12-24
Observations (307)
Date Type RA Dec Mag Band Observatory
2025-11-24 12:35:47 C 05 26 51.193 +03 57 37.99 X F51
2025-11-24 12:55:25 C 05 26 50.113 +03 57 29.87 X F51
2025-11-24 13:33:52 C 05 26 47.961 +03 57 13.99 X F51
2025-12-21 05:08:07 C 04 52 58.25 +01 11 08.3 V H21
2025-12-21 05:10:08 C 04 52 58.16 +01 11 08.2 V H21
2025-12-24 04:27:33 C 04 49 52.96 +01 05 25.5 V H21
2025-12-24 04:36:50 C 04 49 52.59 +01 05 25.0 V H21