2011 OY4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4372078720 ± 2.00e+00
Semi-major axis (a)2.1722590557 AU ± 3.00e+00
Inclination (i)2.95774485° ± 4.00e+00
Long. of Asc. Node (Ω)328.72638672° ± 5.00e+00
Arg. of Perihelion (ω)327.80532815° ± 6.00e+00
Mean Anomaly (M)175.28052035° ± 3.09e+00
Mean Motion (n)0.3080617400°/day ± 6.38e-01
Perihelion dist (q)1.22176600 AU ± 4.66e+00
Aphelion dist (Q)3.12074440 AU ± 6.12e+00
Orbital Period3.19938350 yr ± 6.63e+00
Physical Parameters
H (abs. magnitude)24.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.090″
Uncertainty4
Orbit TypeAmor
MOID0.206979 AU
Observations Used10
Oppositions1
Arc Total2011-2011
First Observation Used
Last Observation Used2011-07-27
Observations (10)
Date Type RA Dec Mag Band Observatory
2011-07-26 10:41:51 C 21 21 14.407 -22 33 23.56 L F51
2011-07-26 11:01:42 C 21 21 15.267 -22 33 06.25 L F51
2011-07-26 11:21:33 C 21 21 16.117 -22 32 49.00 L F51
2011-07-26 11:41:25 C 21 21 16.969 -22 32 31.52 L F51
2011-07-27 11:24:12 C 21 22 33.81 -22 11 43.5 o F65
2011-07-27 11:27:38 C 21 22 33.94 -22 11 40.6 o F65
2011-07-27 11:31:07 C 21 22 34.09 -22 11 37.6 o F65
2011-07-27 11:34:40 C 21 22 34.23 -22 11 34.3 o F65
2011-07-27 13:55:21 C 21 22 40.11 -22 09 28.3 t F65
2011-07-27 14:05:30 C 21 22 40.57 -22 09 18.9 t F65