2021 ER3

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5598841000
Semi-major axis (a)1.9454418000 AU
Inclination (i)2.70211000°
Long. of Asc. Node (Ω)163.00457000°
Arg. of Perihelion (ω)313.49284000°
Mean Anomaly (M)277.32844000°
Mean Motion (n)0.3632258100°/day
Perihelion dist (q)0.85621990 AU
Aphelion dist (Q)3.03466370 AU
Orbital Period2.71348460 yr
Physical Parameters
H (abs. magnitude)25.98
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.480″
Uncertainty6
Orbit TypeApollo
MOID0.004391 AU
Observations Used117
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-03-20
Observations (122)
Date Type RA Dec Mag Band Observatory
2021-03-12 03:01:24 C 12 07 12.48 +24 59 15.6 V 204
2021-03-12 03:09:04 C 12 07 18.31 +24 56 30.1 V 204
2021-03-12 20:32:47 C 12 18 55.02 +20 03 06.8 V 033
2021-03-12 20:33:18 C 12 18 55.22 +20 03 00.4 V 033
2021-03-12 20:33:47 C 12 18 55.42 +20 02 54.1 V 033
2021-03-13 03:56:28 C 12 21 41.21 +18 33 06.9 V 033
2021-03-13 03:57:18 C 12 21 41.49 +18 32 57.7 V 033
2021-03-13 03:58:07 C 12 21 41.79 +18 32 48.4 V 033
2021-03-15 01:55:19 C 12 33 17.11 +12 58 07.5 V 204
2021-03-15 02:14:45 C 12 33 19.27 +12 56 34.2 V 204
2021-03-15 08:25:18 C 12 34 29.02 +12 30 01.8 V T08
2021-03-15 09:01:49 C 12 34 32.33 +12 27 29.4 V T08
2021-03-15 09:23:34 C 12 34 34.16 +12 25 58.4 V T08
2021-03-15 09:40:49 C 12 34 35.58 +12 24 46.3 V T08
2021-03-18 07:48:59 C 12 40 38.76 +09 05 38.4 V I52
2021-03-18 07:50:48 C 12 40 38.79 +09 05 35.2 V I52
2021-03-18 07:52:37 C 12 40 38.81 +09 05 33.4 V I52
2021-03-18 07:54:26 C 12 40 38.86 +09 05 28.9 V I52
2021-03-20 08:27:06 C 12 42 42.55 +07 51 02.5 V G96
2021-03-20 08:34:31 C 12 42 42.58 +07 50 53.4 V G96
2021-03-20 08:41:54 C 12 42 42.62 +07 50 43.7 V G96
2021-03-20 08:49:16 C 12 42 42.64 +07 50 34.6 V G96