2011 OC18

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4380644906 ± 1.91e-08
Semi-major axis (a)2.1099917530 AU ± 2.66e-08
Inclination (i)6.90782283° ± 2.79e-06
Long. of Asc. Node (Ω)149.82224405° ± 7.00e-06
Arg. of Perihelion (ω)180.19098641° ± 2.33e-05
Mean Anomaly (M)233.31340184° ± 4.04e-05
Mean Motion (n)0.3215815613°/day ± 6.08e-09
Perihelion dist (q)1.18567929 AU ± 4.30e-08
Aphelion dist (Q)3.03430422 AU ± 5.56e-08
Orbital Period3.06493407 yr ± 5.80e-08
Physical Parameters
H (abs. magnitude)20.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.162″
Uncertainty0
Orbit TypeAmor
MOID0.172446 AU
Observations Used146
Oppositions4
Arc Total2011-2017
First Observation Used2011-07-29
Last Observation Used2017-05-27
Observations (158)
Date Type RA Dec Mag Band Observatory
2014-07-30 08:05:07 C 16 30 55.804 -08 14 22.54 L F51
2014-07-30 08:22:20 C 16 30 56.328 -08 14 35.17 L F51
2014-07-30 08:39:32 C 16 30 56.844 -08 14 47.59 L F51
2014-07-30 08:56:45 C 16 30 57.367 -08 15 00.22 L F51
2017-05-27 08:42:24 C 15 16 37.389 -01 39 22.75 L F51
2017-05-27 08:57:47 C 15 16 36.523 -01 39 18.83 L F51
2017-05-27 09:13:08 C 15 16 35.627 -01 39 15.06 L F51
2017-05-27 09:28:30 C 15 16 34.767 -01 39 10.72 L F51