455407 (2003 ER)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2360005721 ± 4.36e-08
Semi-major axis (a)1.5127288286 AU ± 3.02e-09
Inclination (i)36.10030536° ± 1.27e-05
Long. of Asc. Node (Ω)155.99345589° ± 5.15e-06
Arg. of Perihelion (ω)68.62671023° ± 2.58e-05
Mean Anomaly (M)30.04707618° ± 2.99e-05
Mean Motion (n)0.5297496164°/day ± 1.59e-09
Perihelion dist (q)1.15572396 AU ± 6.59e-08
Aphelion dist (Q)1.86973370 AU ± 6.60e-08
Orbital Period1.86055120 yr ± 5.58e-09
Physical Parameters
H (abs. magnitude)19.86
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.318″
Uncertainty0
Orbit TypeAmor
MOID0.302925 AU
Observations Used145
Oppositions9
Arc Total2003-2022
First Observation Used2003-01-30
Last Observation Used2022-09-20
Observations (153)
Date Type RA Dec Mag Band Observatory
2022-09-20 12:51:38 C 02 53 42.346 -29 21 45.00 U F51
2022-09-20 13:07:24 C 02 53 42.086 -29 22 06.77 U F51
2022-09-20 13:23:24 C 02 53 41.808 -29 22 28.98 U F51