2011 SR12

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8017552648 ± 1.57e-07
Semi-major axis (a)2.0223691832 AU ± 1.81e-07
Inclination (i)11.90902390° ± 2.47e-05
Long. of Asc. Node (Ω)203.05466673° ± 7.04e-05
Arg. of Perihelion (ω)23.84887951° ± 9.58e-05
Mean Anomaly (M)11.63918732° ± 1.39e-04
Mean Motion (n)0.3427059288°/day ± 4.59e-08
Perihelion dist (q)0.40092404 AU ± 3.20e-07
Aphelion dist (Q)3.64381432 AU ± 4.55e-07
Orbital Period2.87601177 yr ± 3.85e-07
Physical Parameters
H (abs. magnitude)19.59
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.230″
Uncertainty0
Orbit TypeApollo
MOID0.148331 AU
Observations Used50
Oppositions4
Arc Total2011-2017
First Observation Used2011-09-19
Last Observation Used2017-01-16
Observations (52)
Date Type RA Dec Mag Band Observatory
2017-01-19 21:44:30 S 04 13 09.658 -43 49 39.18 L C51
2017-01-19 23:18:45 S 04 12 06.233 -43 54 19.44 L C51