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
2011-03-10 05:09:18 C 11 19 06.34 +18 16 32.8 r G96
2011-03-10 05:21:59 C 11 19 04.47 +18 16 56.3 r G96
2011-03-10 05:34:32 C 11 19 02.64 +18 17 19.5 r G96
2011-03-10 06:51:32 C 11 18 51.14 +18 19 41.3 o H01
2011-03-10 07:03:43 C 11 18 49.33 +18 20 03.7 o H01
2011-03-10 07:13:17 C 11 18 47.91 +18 20 21.3 o H01
2011-03-10 07:26:02 C 11 18 46.02 +18 20 44.7 o H01
2011-03-10 09:09:36 C 11 18 30.50 +18 23 52.4 u H36
2011-03-10 09:17:31 C 11 18 29.25 +18 24 07.0 u H36
2011-03-10 09:25:29 C 11 18 28.15 +18 24 22.4 u H36
2011-03-10 21:12:45 C 11 16 45.95 +18 46 07.5 u J95
2011-03-10 21:17:39 C 11 16 45.27 +18 46 18.0 u J95
2011-03-10 21:24:52 C 11 16 44.26 +18 46 30.7 u J95
2011-03-10 21:55:22 C 11 16 39.54 +18 47 30.2 o C44
2011-03-10 22:15:59 C 11 16 36.40 +18 48 07.0 o C44
2011-03-12 07:17:34 C 11 11 35.22 +19 50 18.1 u H36
2011-03-12 07:28:57 C 11 11 33.38 +19 50 40.0 u H36
2011-03-12 07:40:27 C 11 11 31.54 +19 51 01.6 u H36
2011-03-12 07:51:57 C 11 11 29.68 +19 51 23.9 u H36
2011-03-23 21:35:20 C 10 19 12.11 +28 56 13.8 u J18
2011-03-23 21:42:40 C 10 19 10.50 +28 56 28.3 u J18
2011-03-23 22:04:17 C 10 19 05.69 +28 57 10.0 u J18
2011-03-25 09:16:46 C 10 11 16.72 +30 03 37.5 o 291
2011-03-25 09:22:43 C 10 11 15.36 +30 03 49.1 o 291
2011-03-25 09:28:54 C 10 11 13.99 +30 04 00.1 o 291
2011-04-02 03:14:21 C 09 27 23.09 +35 15 12.3 o H21
2011-04-02 03:39:08 C 09 27 16.90 +35 15 47.8 o H21
2011-04-02 04:03:51 C 09 27 10.72 +35 16 23.3 o H21
2014-03-14 12:19:34 C 15 33 12.60 +18 52 22.5 o 926
2014-03-14 12:24:40 C 15 33 14.44 +18 52 44.3 o 926
2014-03-14 12:29:51 C 15 33 16.33 +18 53 06.4 o 926
2014-03-16 08:55:23 C 15 51 43.31 +22 15 13.3 o 926
2014-03-16 09:01:42 C 15 51 46.19 +22 15 43.8 o 926
2014-03-16 09:06:46 C 15 51 48.49 +22 16 08.2 o 926
2014-03-17 02:01:09 C 15 59 53.80 +23 40 17.3 t 204
2014-03-17 02:20:06 C 16 00 03.10 +23 41 54.5 t 204
2014-03-17 02:37:49 C 16 00 11.82 +23 43 25.1 t 204
2014-03-20 09:34:54 C 16 48 42.15 +31 01 40.1 u H21
2014-03-20 09:40:52 C 16 48 46.53 +31 02 14.9 u H21
2014-03-20 09:46:53 C 16 48 50.94 +31 02 50.2 u H21
2014-03-20 09:52:52 C 16 48 55.34 +31 03 25.3 u H21
2014-03-20 09:59:08 C 16 48 59.95 +31 04 02.0 u H21
2015-12-08 10:43:43 C 01 00 39.88 -86 51 43.5 t 474
2015-12-08 10:47:09 C 01 01 09.46 -86 51 20.1 t 474
2015-12-08 10:50:37 C 01 01 37.52 -86 50 55.6 t 474
2015-12-18 03:24:26 C 03 50 46.48 -51 02 50.6 u 807
2015-12-18 03:26:59 C 03 50 46.60 -51 02 29.8 u 807
2015-12-18 03:29:38 C 03 50 46.73 -51 02 08.0 u 807
2015-12-18 03:32:04 C 03 50 46.86 -51 01 48.2 u 807
2015-12-18 03:34:44 C 03 50 46.97 -51 01 26.2 u 807