2011 SJ189

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3865146295 ± 1.60e-05
Semi-major axis (a)1.8756196808 AU ± 5.74e-05
Inclination (i)4.63652989° ± 1.39e-04
Long. of Asc. Node (Ω)23.34841557° ± 8.64e-05
Arg. of Perihelion (ω)8.48122968° ± 2.97e-04
Mean Anomaly (M)173.54389764° ± 9.23e-02
Mean Motion (n)0.3837029202°/day ± 1.76e-05
Perihelion dist (q)1.15066523 AU ± 4.63e-05
Aphelion dist (Q)2.60057413 AU ± 8.51e-05
Orbital Period2.56872239 yr ± 1.18e-04
Physical Parameters
H (abs. magnitude)22.60
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.297″
Uncertainty2
Orbit TypeAmor
MOID0.154603 AU
Observations Used61
Oppositions1
Arc Total2011-2011
First Observation Used2011-09-28
Last Observation Used2011-12-24
Observations (61)
Date Type RA Dec Mag Band Observatory
2011-10-29 08:35:48 C 03 49 10.12 +28 33 19.2 u 448
2011-10-29 09:11:20 C 03 49 12.06 +28 34 08.6 u 448
2011-11-18 11:20:19 C 04 11 20.29 +36 39 21.8 o 291
2011-11-18 11:27:43 C 04 11 20.41 +36 39 26.0 o 291
2011-11-18 11:35:06 C 04 11 20.55 +36 39 29.6 o 291
2011-12-24 04:03:35 C 04 28 17.51 +37 44 53.3 o H21
2011-12-24 04:25:00 C 04 28 18.04 +37 44 48.3 o H21
2011-12-24 04:47:10 C 04 28 18.56 +37 44 43.0 o H21
2011-12-24 08:15:43 C 04 28 24.24 +37 43 53.6 o 291
2011-12-24 08:24:45 C 04 28 24.53 +37 43 51.6 o 291
2011-12-24 08:33:49 C 04 28 24.73 +37 43 49.2 o 291