2013 ER4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2982924000
Semi-major axis (a)1.1715262000 AU
Inclination (i)7.43710000°
Long. of Asc. Node (Ω)336.45276000°
Arg. of Perihelion (ω)92.20034000°
Mean Anomaly (M)68.31672000°
Mean Motion (n)0.7772774400°/day
Perihelion dist (q)0.82206880 AU
Aphelion dist (Q)1.52098360 AU
Orbital Period1.26802560 yr
Physical Parameters
H (abs. magnitude)25.00
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.190″
Uncertainty6
Orbit TypeApollo
MOID0.027144 AU
Observations Used21
Oppositions1
Arc Total
First Observation Used
Last Observation Used2013-03-15
Observations (21)
Date Type RA Dec Mag Band Observatory
2013-03-04 07:47:58 C 09 50 28.284 +04 30 28.24 L F51
2013-03-04 08:08:27 C 09 50 27.111 +04 29 49.20 L F51
2013-03-05 02:52:38 C 09 49 51.85 +03 55 00.6 t 711
2013-03-05 03:07:31 C 09 49 51.16 +03 54 34.4 t 711
2013-03-05 03:22:23 C 09 49 50.48 +03 54 08.4 t 711
2013-03-05 06:13:03 C 09 49 42.62 +03 49 09.2 o 291
2013-03-05 06:23:44 C 09 49 42.07 +03 48 50.9 o 291
2013-03-05 06:34:24 C 09 49 41.54 +03 48 32.2 o 291
2013-03-05 08:28:16 C 09 49 39.506 +03 45 30.81 t 568
2013-03-05 08:30:05 C 09 49 39.418 +03 45 27.65 t 568
2013-03-05 08:31:53 C 09 49 39.326 +03 45 24.59 t 568
2013-03-06 01:21:00 C 09 49 12.88 +03 18 33.0 u 807
2013-03-06 01:26:12 C 09 49 12.66 +03 18 24.9 u 807
2013-03-06 01:31:23 C 09 49 12.46 +03 18 16.6 u 807
2013-03-06 01:36:35 C 09 49 12.24 +03 18 08.3 u 807
2013-03-06 01:41:48 C 09 49 12.01 +03 18 00.0 u 807
2013-03-08 07:26:25 C 09 48 04.113 +02 00 01.90 t F65
2013-03-08 07:29:28 C 09 48 04.012 +01 59 58.09 t F65
2013-03-15 04:44:26 C 09 47 12.99 -00 36 53.0 u H21
2013-03-15 05:08:24 C 09 47 12.83 -00 37 09.8 u H21
2013-03-15 05:33:39 C 09 47 12.66 -00 37 27.2 u H21