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
2021-03-10 22:24:53 C 11 18 08.66 +41 49 33.5 – o K88
2021-03-10 22:25:19 C 11 18 10.09 +41 49 09.5 – o K88
2021-03-10 22:25:44 C 11 18 11.46 +41 48 45.9 – o K88
2021-03-10 22:26:10 C 11 18 12.84 +41 48 22.5 – o K88
2021-03-10 22:49:10 C 11 19 27.07 +41 27 18.3 – o K88
2021-03-10 22:49:36 C 11 19 28.42 +41 26 54.9 – o K88
2021-03-10 22:50:01 C 11 19 29.80 +41 26 31.3 – o K88
2021-03-10 22:50:27 C 11 19 31.17 +41 26 08.2 – o K88
2021-03-10 22:50:53 C 11 19 32.51 +41 25 44.7 – o K88
2021-03-10 23:19:55 C 11 21 03.28 +40 59 28.7 – o K88
2021-03-10 23:20:17 C 11 21 04.40 +40 59 08.8 – o K88
2021-03-10 23:20:44 C 11 21 05.80 +40 58 44.2 – o K88
2021-03-10 23:21:07 C 11 21 06.94 +40 58 24.4 – o K88
2021-03-10 23:21:29 C 11 21 08.08 +40 58 03.9 – o K88
2021-03-10 23:21:52 C 11 21 09.27 +40 57 43.3 – o K88
2021-03-10 23:22:00 C 11 21 17.79 +40 58 35.6 – V K63
2021-03-10 23:22:15 C 11 21 10.48 +40 57 23.1 – o K88
2021-03-10 23:22:18 C 11 21 15.76 +40 58 01.0 – V L01
2021-03-10 23:22:37 C 11 21 11.55 +40 57 03.3 – o K88
2021-03-10 23:22:56 C 11 21 17.67 +40 57 27.2 – V L01
2021-03-10 23:23:39 C 11 21 22.82 +40 57 06.9 – V K63
2021-03-10 23:23:51 C 11 21 15.35 +40 55 57.1 – o K88
2021-03-10 23:24:13 C 11 21 16.49 +40 55 37.6 – o K88
2021-03-10 23:24:36 C 11 21 22.74 +40 55 58.2 – V L01
2021-03-10 23:24:36 C 11 21 17.66 +40 55 16.6 – o K88
2021-03-10 23:24:59 C 11 21 18.76 +40 54 56.2 – o K88
2021-03-10 23:25:18 C 11 21 27.84 +40 55 38.0 – V K63
2021-03-10 23:25:22 C 11 21 19.94 +40 54 35.9 – o K88
2021-03-10 23:25:44 C 11 21 21.11 +40 54 14.9 – o K88
2021-03-10 23:26:07 C 11 21 22.28 +40 53 54.4 – o K88
2021-03-10 23:26:15 C 11 21 27.75 +40 54 29.8 – V L01
2021-03-10 23:26:30 C 11 21 23.43 +40 53 34.4 – o K88
2021-03-10 23:27:02 C 11 21 33.11 +40 54 05.3 – V K63
2021-03-10 23:27:54 C 11 21 32.77 +40 53 01.3 – V L01
2021-03-10 23:28:45 C 11 21 38.33 +40 52 33.8 – V K63
2021-03-10 23:28:56 C 11 21 35.91 +40 52 05.7 – V L01
2021-03-11 00:01:59 C 11 23 09.79 +40 22 01.9 – o K88
2021-03-11 00:02:21 C 11 23 10.93 +40 21 42.0 – o K88
2021-03-11 00:02:44 C 11 23 12.05 +40 21 21.9 – o K88
2021-03-11 00:03:06 C 11 23 13.15 +40 21 01.9 – o K88
2021-03-11 00:03:29 C 11 23 14.25 +40 20 42.0 – o K88
2021-03-11 00:03:52 C 11 23 15.35 +40 20 22.4 – o K88
2021-03-11 00:04:14 C 11 23 16.47 +40 20 02.1 – o K88
2021-03-11 00:04:41 C 11 23 17.76 +40 19 38.7 – o K88
2021-03-11 02:15:31 C 11 29 20.92 +38 28 55.3 – V L01
2021-03-11 02:15:56 C 11 29 20.28 +38 27 38.4 – o K88
2021-03-11 02:16:18 C 11 29 21.24 +38 27 19.9 – o K88
2021-03-11 02:16:20 C 11 29 23.06 +38 28 14.3 – V L01
2021-03-11 02:16:41 C 11 29 22.23 +38 27 01.3 – o K88
2021-03-11 02:17:03 C 11 29 23.21 +38 26 42.8 – o K88