878008 (2011 SJ16)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7994800945 ± 5.86e-08
Semi-major axis (a)2.7970952556 AU ± 7.06e-09
Inclination (i)17.67197039° ± 1.25e-05
Long. of Asc. Node (Ω)186.21722103° ± 7.42e-06
Arg. of Perihelion (ω)293.78385311° ± 1.79e-05
Mean Anomaly (M)352.35480774° ± 3.62e-06
Mean Motion (n)0.2106936231°/day ± 7.97e-10
Perihelion dist (q)0.56087328 AU ± 1.64e-07
Aphelion dist (Q)5.03331723 AU ± 1.65e-07
Orbital Period4.67800719 yr ± 1.77e-08
Physical Parameters
H (abs. magnitude)19.21
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.276″
Uncertainty0
Orbit TypeApollo
MOID0.111422 AU
Observations Used236
Oppositions11
Arc Total2011-2025
First Observation Used2011-09-20
Last Observation Used2025-10-22
Observations (254)
Date Type RA Dec Mag Band Observatory
2025-10-22 21:07:30 C 22 38 13.874 -16 30 53.24 V R17
2025-10-22 21:27:53 C 22 38 10.831 -16 31 39.68 V R17
2025-10-22 21:53:14 C 22 38 07.061 -16 32 37.21 V R17
2025-10-22 22:12:44 C 22 38 04.164 -16 33 21.92 V R17