2021 ER

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1545366000
Semi-major axis (a)0.8853142000 AU
Inclination (i)5.51994000°
Long. of Asc. Node (Ω)162.01786000°
Arg. of Perihelion (ω)214.15318000°
Mean Anomaly (M)15.60384000°
Mean Motion (n)1.1831993300°/day
Perihelion dist (q)0.74850080 AU
Aphelion dist (Q)1.02212760 AU
Orbital Period0.83300220 yr
Physical Parameters
H (abs. magnitude)27.01
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.980″
Uncertainty0
Orbit TypeAten
MOID0.000280 AU
Observations Used87
Oppositions2
Arc Total2021-2026
First Observation Used
Last Observation Used2026-03-09
Observations (94)
Date Type RA Dec Mag Band Observatory
2021-03-06 21:03:06 C 13 04 47.65 +53 01 49.5 V 033
2021-03-06 21:03:36 C 13 04 46.57 +53 01 57.6 V 033
2021-03-06 23:18:06 C 12 59 44.93 +53 37 08.1 V 246
2021-03-06 23:18:41 C 12 59 43.56 +53 37 16.0 V 246
2021-03-06 23:19:40 C 12 59 41.32 +53 37 30.7 V 246
2021-03-06 23:20:27 C 12 59 39.52 +53 37 41.5 V 246
2021-03-06 23:20:48 C 12 59 38.67 +53 37 46.2 V 246
2021-03-06 23:21:09 C 12 59 37.97 +53 37 51.5 V 246
2021-03-07 02:27:29 C 12 52 37.56 +54 17 03.7 V K87
2021-03-07 02:31:22 C 12 52 28.86 +54 17 47.7 V K87
2021-03-07 02:34:16 C 12 52 22.28 +54 18 20.2 V K87
2021-03-07 04:22:28 C 12 48 27.20 +54 36 34.8 V 033
2021-03-07 04:22:59 C 12 48 26.18 +54 36 39.5 V 033
2021-03-07 04:23:28 C 12 48 25.14 +54 36 44.2 V 033
2021-03-07 04:24:02 C 12 48 23.96 +54 36 49.5 V 033
2021-03-07 06:58:10 C 12 45 21.88 +55 11 13.1 V I52
2021-03-07 06:58:21 C 12 45 21.51 +55 11 15.3 V I52
2021-03-07 06:58:33 C 12 45 21.10 +55 11 17.7 V I52
2021-03-07 06:58:44 C 12 45 20.66 +55 11 20.2 V I52
2021-03-08 00:39:55 C 12 14 41.00 +57 34 18.3 V K87
2021-03-08 00:44:59 C 12 14 31.92 +57 34 51.0 V K87
2021-03-08 00:50:02 C 12 14 22.65 +57 35 21.7 V K87
2021-03-08 20:46:54 C 11 47 50.21 +59 10 42.7 V 595
2021-03-08 20:54:34 C 11 47 36.46 +59 10 22.1 V 033
2021-03-08 20:55:23 C 11 47 35.29 +59 10 26.1 V 033
2021-03-08 20:56:13 C 11 47 34.12 +59 10 30.1 V 033
2021-03-08 21:00:00 C 11 47 31.40 +59 11 46.8 V 595
2021-03-08 21:13:07 C 11 47 12.59 +59 12 49.5 V 595
2021-03-08 22:24:55 C 11 45 27.36 +59 17 05.9 V 033
2021-03-08 22:25:51 C 11 45 26.05 +59 17 09.5 V 033
2021-03-09 02:28:20 C 11 39 54.45 +59 30 05.5 V J95
2021-03-09 02:31:49 C 11 39 49.66 +59 30 14.2 V J95
2021-03-09 02:35:43 C 11 39 44.39 +59 30 22.6 V J95
2021-03-09 02:41:39 C 11 39 36.33 +59 30 36.9 V J95
2021-03-10 04:24:50 C 11 15 04.90 +60 29 15.4 V I52
2021-03-10 04:25:26 C 11 15 04.29 +60 29 17.4 V I52
2021-03-11 04:04:05 C 10 56 46.73 +60 55 11.9 V I52
2021-03-11 04:05:30 C 10 56 45.51 +60 55 14.2 V I52
2021-03-11 04:08:20 C 10 56 43.08 +60 55 19.3 V I52
2021-03-19 09:22:22 C 09 52 02.17 +60 37 22.0 V 291
2021-03-19 09:33:42 C 09 51 59.93 +60 37 10.8 V 291
2021-03-19 09:45:03 C 09 51 57.79 +60 36 59.1 V 291
2021-04-08 05:54:55 C 09 35 48.359 +57 49 04.55 V G37
2021-04-08 06:31:09 C 09 35 47.337 +57 48 45.09 V G37