2011 EN40

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7391429837 ± 7.32e-08
Semi-major axis (a)1.2874649073 AU ± 2.90e-08
Inclination (i)13.40979739° ± 6.72e-06
Long. of Asc. Node (Ω)148.53621477° ± 2.85e-05
Arg. of Perihelion (ω)164.66478557° ± 3.42e-05
Mean Anomaly (M)321.34048083° ± 8.62e-05
Mean Motion (n)0.6746976163°/day ± 2.28e-08
Perihelion dist (q)0.33584425 AU ± 9.45e-08
Aphelion dist (Q)2.23908556 AU ± 1.07e-07
Orbital Period1.46084151 yr ± 4.93e-08
Physical Parameters
H (abs. magnitude)20.60
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.287″
Uncertainty0
Orbit TypeApollo
MOID0.150161 AU
Observations Used67
Oppositions2
Arc Total2011-2016
First Observation Used2011-03-10
Last Observation Used2016-01-11
Observations (67)
Date Type RA Dec Mag Band Observatory
2015-12-22 03:18:25 C 03 55 00.74 -39 16 03.1 u 807
2015-12-22 03:21:45 C 03 55 00.81 -39 15 41.2 u 807
2015-12-22 03:25:16 C 03 55 00.91 -39 15 18.1 u 807
2015-12-22 03:28:27 C 03 55 00.98 -39 14 57.0 u 807
2015-12-22 03:31:58 C 03 55 01.11 -39 14 34.0 u 807
2015-12-23 03:46:31 C 03 55 50.34 -36 40 09.8 u 807
2015-12-23 03:49:52 C 03 55 50.44 -36 39 49.2 u 807
2015-12-23 03:53:24 C 03 55 50.53 -36 39 27.2 u 807
2015-12-23 03:56:35 C 03 55 50.61 -36 39 07.1 u 807
2015-12-23 04:00:07 C 03 55 50.68 -36 38 45.4 u 807
2016-01-02 02:12:05 C 04 02 26.15 -18 15 09.1 u 807
2016-01-02 02:19:34 C 04 02 26.29 -18 14 43.6 u 807
2016-01-02 02:27:04 C 04 02 26.46 -18 14 17.8 u 807
2016-01-11 07:01:52 C 04 08 37.171 -08 19 19.01 L F51
2016-01-11 07:21:17 C 04 08 37.675 -08 18 37.51 L F51
2016-01-11 07:40:19 C 04 08 38.160 -08 17 56.89 L F51
2016-01-11 07:59:20 C 04 08 38.648 -08 17 16.60 L F51