IAA RAS IAA Minor Planet Database

2021 UE4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5233753000
Semi-major axis (a)1.8685995000 AU
Inclination (i)4.79163000°
Long. of Asc. Node (Ω)41.12910000°
Arg. of Perihelion (ω)46.09418000°
Mean Anomaly (M)197.42825000°
Mean Motion (n)0.3858599700°/day
Perihelion dist (q)0.89062070 AU
Aphelion dist (Q)2.84657830 AU
Orbital Period2.55431430 yr
Physical Parameters
H (abs. magnitude)27.29
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.840″
Uncertainty7
Orbit TypeApollo
MOID0.000684 AU
Observations Used56
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-11-03
Observations (58)
Date Type RA Dec Mag Band Observatory
2021-10-29 07:00:50 C 02 07 10.07 -02 46 51.1 – V G96
2021-10-29 07:08:20 C 02 07 12.52 -02 46 31.0 – V G96
2021-10-29 07:15:50 C 02 07 15.02 -02 46 10.1 – V G96
2021-10-29 07:23:23 C 02 07 17.52 -02 45 49.3 – V G96
2021-10-29 09:44:17 C 02 08 06.11 -02 39 09.4 – V I52
2021-10-29 09:46:06 C 02 08 06.79 -02 39 04.5 – V I52
2021-10-29 09:47:55 C 02 08 07.38 -02 38 59.4 – V I52
2021-10-29 19:41:43 C 02 12 53.14 -02 09 00.4 – V 246
2021-10-29 19:43:44 C 02 12 54.08 -02 08 53.9 – V 246
2021-10-29 21:36:59 C 02 13 45.17 -02 02 13.1 – V 595
2021-10-29 22:12:11 C 02 14 00.99 -02 00 25.6 – V 033
2021-10-29 22:13:11 C 02 14 01.51 -02 00 22.1 – V 033
2021-10-29 22:14:11 C 02 14 01.94 -02 00 18.6 – V 033
2021-10-29 22:23:59 C 02 14 06.18 -01 59 25.8 – V 595
2021-10-29 23:04:29 C 02 14 24.39 -01 57 00.8 – V 595
2021-10-29 23:34:04 C 02 14 37.82 -01 55 11.4 – V L01
2021-10-29 23:36:18 C 02 14 38.85 -01 55 02.9 – V L01
2021-10-29 23:38:32 C 02 14 39.84 -01 54 54.5 – V L01
2021-10-29 23:40:47 C 02 14 40.87 -01 54 47.0 – V L01
2021-10-29 23:43:02 C 02 14 41.90 -01 54 38.4 – V L01
2021-10-30 03:17:21 C 02 16 46.19 -01 34 47.4 – u 807
2021-10-30 03:20:49 C 02 16 47.86 -01 34 33.5 – u 807
2021-10-30 03:24:25 C 02 16 49.58 -01 34 19.4 – u 807
2021-10-30 06:56:09 C 02 18 43.10 -01 25 56.7 – V 734
2021-10-30 07:04:21 C 02 18 47.38 -01 25 22.3 – V 734
2021-10-30 07:08:47 C 02 18 49.71 -01 25 03.9 – V 734
2021-10-30 07:13:12 C 02 18 51.99 -01 24 45.4 – V 734
2021-10-30 07:17:36 C 02 18 54.30 -01 24 26.6 – V 734
2021-10-30 07:22:02 C 02 18 56.62 -01 24 07.7 – V 734
2021-10-30 08:39:39 C 02 19 41.80 -01 18 05.8 – V I52
2021-10-30 08:43:28 C 02 19 43.86 -01 17 49.4 – V I52
2021-10-30 08:47:21 C 02 19 45.95 -01 17 32.5 – V I52
2021-10-30 08:51:19 C 02 19 48.09 -01 17 15.2 – V I52
2021-10-31 07:17:57 C 02 37 29.42 +00 47 21.3 – V 703
2021-10-31 07:25:37 C 02 37 36.29 +00 48 15.0 – V 703
2021-10-31 07:33:17 C 02 37 43.10 +00 49 09.9 – V 703
2021-10-31 07:40:57 C 02 37 49.90 +00 50 04.7 – V 703
2021-10-31 20:17:14 C 02 52 52.85 +02 32 55.8 – V 033
2021-10-31 20:17:38 C 02 52 53.39 +02 32 59.6 – V 033
2021-10-31 20:18:04 C 02 52 53.92 +02 33 03.7 – V 033
2021-11-01 22:32:35 C 03 47 29.97 +08 49 33.7 – V 204
2021-11-01 22:38:25 C 03 47 47.29 +08 51 32.9 – V 204
2021-11-01 22:44:30 C 03 48 05.47 +08 53 39.2 – V 204
2021-11-01 23:00:26 C 03 48 56.32 +08 58 08.0 – V Z80
2021-11-01 23:15:09 C 03 49 41.20 +09 03 17.2 – V Z80
2021-11-02 02:57:11 C 04 02 36.15 +10 26 58.9 – Z W33
2021-11-02 03:05:22 C 04 03 05.19 +10 30 11.6 – Z W33
2021-11-02 03:13:36 C 04 03 34.40 +10 33 26.0 – Z W33
2021-11-02 23:24:46 C 05 50 52.93 +19 58 36.2 – V Z80
2021-11-02 23:46:43 C 05 53 29.03 +20 09 32.9 – V Z80