2012 ER3

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4099473000
Semi-major axis (a)1.5110930000 AU
Inclination (i)12.70733000°
Long. of Asc. Node (Ω)164.66148000°
Arg. of Perihelion (ω)67.96991000°
Mean Anomaly (M)108.28448000°
Mean Motion (n)0.5306000500°/day
Perihelion dist (q)0.89162450 AU
Aphelion dist (Q)2.13056150 AU
Orbital Period1.85753410 yr
Physical Parameters
H (abs. magnitude)24.50
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.260″
Uncertainty7
Orbit TypeApollo
MOID0.053563 AU
Observations Used39
Oppositions1
Arc Total
First Observation Used
Last Observation Used2012-03-14
Observations (40)
Date Type RA Dec Mag Band Observatory
2012-03-04 07:30:13 C 12 09 10.62 +00 50 22.8 r G96
2012-03-04 07:39:29 C 12 09 13.46 +00 51 04.6 r G96
2012-03-04 07:48:44 C 12 09 16.38 +00 51 46.1 r G96
2012-03-04 07:57:59 C 12 09 19.26 +00 52 28.2 r G96
2012-03-04 08:42:04 C 12 09 31.13 +00 55 37.6 t H21
2012-03-04 08:47:47 C 12 09 32.94 +00 56 03.5 t H21
2012-03-04 08:53:37 C 12 09 34.76 +00 56 29.8 t H21
2012-03-04 08:59:19 C 12 09 36.55 +00 56 56.1 t H21
2012-03-04 10:52:02 C 12 10 13.83 +01 05 38.4 r G96
2012-03-04 10:52:43 C 12 10 14.05 +01 05 41.3 r G96
2012-03-04 10:53:23 C 12 10 14.30 +01 05 43.6 r G96
2012-03-04 10:54:02 C 12 10 14.44 +01 05 47.2 r G96
2012-03-04 23:33:38 C 12 14 44.39 +02 05 20.3 u J95
2012-03-04 23:51:16 C 12 14 50.47 +02 06 47.2 u J95
2012-03-05 05:20:36 C 12 16 53.66 +02 34 28.7 o H01
2012-03-05 05:32:22 C 12 16 57.85 +02 35 28.7 o H01
2012-03-05 05:43:22 C 12 17 01.75 +02 36 24.3 o H01
2012-03-05 05:55:02 C 12 17 05.91 +02 37 23.5 o H01
2012-03-05 06:53:14 C 12 17 23.13 +02 44 03.3 o 807
2012-03-05 07:01:05 C 12 17 25.89 +02 44 43.0 o 807
2012-03-05 07:08:54 C 12 17 28.64 +02 45 23.0 o 807
2012-03-05 09:51:24 C 12 18 28.94 +02 57 29.6 u H36
2012-03-05 10:01:58 C 12 18 32.85 +02 58 22.4 u H36
2012-03-10 06:55:27 C 13 21 56.54 +16 44 59.9 o H21
2012-03-10 07:03:30 C 13 22 02.33 +16 46 12.9 o H21
2012-03-10 07:11:40 C 13 22 08.26 +16 47 27.0 o H21
2012-03-10 08:40:31 C 13 23 12.49 +17 00 54.9 H21
2012-03-10 08:48:14 C 13 23 18.12 +17 02 04.9 H21
2012-03-10 08:55:51 C 13 23 23.68 +17 03 14.4 H21
2012-03-10 09:03:28 C 13 23 29.20 +17 04 23.4 H21
2012-03-11 08:45:03 C 13 42 49.13 +20 48 10.1 t H21
2012-03-11 08:52:40 C 13 42 55.52 +20 49 24.0 t H21
2012-03-11 09:00:18 C 13 43 01.94 +20 50 38.0 t H21
2012-03-13 08:25:25 C 14 30 27.26 +28 41 36.5 t H21
2012-03-13 08:30:21 C 14 30 32.64 +28 42 25.0 t H21
2012-03-13 08:35:11 C 14 30 37.94 +28 43 12.8 t H21
2012-03-13 08:39:58 C 14 30 43.09 +28 44 00.2 t H21
2012-03-14 09:47:59 C 15 00 36.53 +32 42 06.5 o H21
2012-03-14 09:53:29 C 15 00 43.20 +32 42 56.1 o H21
2012-03-14 09:58:52 C 15 00 49.69 +32 43 44.3 o H21