IAA RAS IAA Minor Planet Database

2021 EP4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3841066000
Semi-major axis (a)1.5764168000 AU
Inclination (i)5.00258000°
Long. of Asc. Node (Ω)355.34076000°
Arg. of Perihelion (ω)154.46465000°
Mean Anomaly (M)141.44107000°
Mean Motion (n)0.4979634700°/day
Perihelion dist (q)0.97090470 AU
Aphelion dist (Q)2.18192890 AU
Orbital Period1.97927700 yr
Physical Parameters
H (abs. magnitude)29.26
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.710″
Uncertainty6
Orbit TypeApollo
MOID0.002049 AU
Observations Used58
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-03-18
Observations (67)
Date Type RA Dec Mag Band Observatory
2021-03-15 11:00:13 C 08 51 55.05 +52 19 59.1 – V 381
2021-03-15 11:00:23 C 08 51 57.34 +52 19 44.4 – V 381
2021-03-15 13:12:26 C 09 25 02.27 +47 49 24.3 – V 381
2021-03-15 13:12:31 C 09 25 03.57 +47 49 11.5 – V 381
2021-03-15 13:23:59 C 09 27 46.69 +47 22 21.0 – V 381
2021-03-15 13:24:04 C 09 27 48.00 +47 22 07.0 – V 381
2021-03-15 13:24:34 C 09 27 55.16 +47 20 56.2 – V 381
2021-03-15 13:24:41 C 09 27 56.40 +47 20 43.0 – V 381
2021-03-15 13:24:53 C 09 27 59.38 +47 20 13.0 – V 381
2021-03-15 13:24:58 C 09 28 00.67 +47 20 00.1 – V 381
2021-03-15 13:40:00 C 09 31 32.36 +46 43 55.0 – V 381
2021-03-15 13:40:06 C 09 31 33.60 +46 43 41.2 – V 381
2021-03-15 15:07:31 C 09 51 11.42 +42 57 30.7 – V 381
2021-03-15 15:22:21 C 09 54 22.31 +42 16 36.5 – V 381
2021-03-15 18:20:16 C 10 35 40.00 +33 21 58.8 – V 595
2021-03-15 18:24:53 C 10 36 28.44 +33 08 14.5 – V 595
2021-03-15 18:26:02 C 10 37 01.12 +33 11 53.2 – V L34
2021-03-15 18:47:21 C 10 39 59.75 +32 01 07.4 – o K88
2021-03-15 18:58:53 C 10 41 55.17 +31 26 20.3 – o K88
2021-03-15 19:15:13 C 10 45 12.81 +30 44 31.8 – V L34
2021-03-15 19:18:02 C 10 45 36.28 +30 19 52.1 – V J95
2021-03-15 19:18:58 C 10 45 45.46 +30 17 03.8 – V J95
2021-03-15 19:19:49 C 10 45 53.88 +30 14 29.5 – V J95
2021-03-15 19:20:40 C 10 46 02.16 +30 11 56.5 – V J95
2021-03-15 19:27:15 C 10 46 52.67 +30 01 17.9 – V L01
2021-03-15 19:28:15 C 10 47 02.30 +29 58 13.8 – V L01
2021-03-15 19:28:24 C 10 47 18.73 +30 04 40.6 – V L34
2021-03-15 19:29:06 C 10 47 10.38 +29 55 39.8 – V L01
2021-03-15 19:30:11 C 10 47 20.62 +29 52 23.8 – V L01
2021-03-15 19:30:58 C 10 47 28.03 +29 50 01.8 – V L01
2021-03-15 19:41:47 C 10 49 21.01 +29 15 28.2 – V 204
2021-03-15 19:45:25 C 10 49 57.64 +29 13 06.2 – V L34
2021-03-15 19:48:04 C 10 50 19.79 +28 56 23.9 – V 204
2021-03-15 19:58:09 C 10 51 52.89 +28 25 48.2 – V 204
2021-03-15 19:59:33 C 10 51 32.56 +28 21 47.7 – o K88
2021-03-15 20:00:33 C 10 51 41.55 +28 18 46.4 – o K88
2021-03-15 20:04:22 C 10 52 49.82 +28 06 52.3 – V 204
2021-03-15 20:50:33 C 11 00 02.05 +25 49 20.0 – V B49
2021-03-15 20:51:48 C 11 00 12.47 +25 45 34.8 – V B49
2021-03-15 21:09:20 C 11 02 11.55 +24 51 20.4 – V K63
2021-03-15 21:10:26 C 11 02 20.79 +24 47 57.4 – V K63
2021-03-15 21:12:46 C 11 02 40.00 +24 40 52.6 – V K63
2021-03-15 21:51:24 C 11 08 10.76 +22 36 30.9 – V Z80
2021-03-15 21:56:24 C 11 08 50.20 +22 21 32.2 – V Z80
2021-03-16 00:01:28 C 11 23 47.50 +16 24 55.2 – V B37
2021-03-16 00:02:06 C 11 23 51.66 +16 23 07.9 – V B37
2021-03-16 00:02:45 C 11 23 55.97 +16 21 16.8 – V B37
2021-03-16 00:15:18 C 11 24 34.96 +15 39 39.0 – o K88
2021-03-16 00:16:15 C 11 24 41.29 +15 36 59.2 – o K88
2021-03-16 00:18:48 C 11 25 40.27 +15 36 03.9 – V B37