IAA RAS IAA Minor Planet Database

2021 UD1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6354540000
Semi-major axis (a)2.8226822000 AU
Inclination (i)4.61024000°
Long. of Asc. Node (Ω)230.77326000°
Arg. of Perihelion (ω)176.39751000°
Mean Anomaly (M)306.08299000°
Mean Motion (n)0.2078313600°/day
Perihelion dist (q)1.02899750 AU
Aphelion dist (Q)4.61636690 AU
Orbital Period4.74234320 yr
Physical Parameters
H (abs. magnitude)25.57
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.740″
Uncertainty7
Orbit TypeAmor
MOID0.037663 AU
Observations Used43
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-11-12
Observations (45)
Date Type RA Dec Mag Band Observatory
2021-10-25 05:37:42 C 23 35 48.90 +27 40 56.7 – V G96
2021-10-25 05:45:09 C 23 35 52.01 +27 41 18.5 – V G96
2021-10-25 06:00:05 C 23 35 58.16 +27 42 01.7 – V G96
2021-10-25 08:10:36 C 23 36 53.23 +27 48 13.8 – V G96
2021-10-25 08:11:26 C 23 36 53.58 +27 48 15.7 – V G96
2021-10-25 08:12:17 C 23 36 53.99 +27 48 18.9 – V G96
2021-10-25 19:24:11 C 23 42 21.01 +28 22 01.9 – V 204
2021-10-25 19:59:34 C 23 42 37.21 +28 23 53.5 – V 204
2021-10-26 02:05:44 C 23 45 43.74 +28 43 05.6 – X 858
2021-10-26 02:15:34 C 23 45 48.43 +28 43 37.7 – X 858
2021-10-26 02:25:09 C 23 45 52.96 +28 44 08.9 – X 858
2021-10-26 02:36:07 C 23 45 59.02 +28 44 48.4 – V I52
2021-10-26 02:38:32 C 23 46 00.11 +28 44 56.3 – V I52
2021-10-26 02:40:57 C 23 46 01.28 +28 45 04.3 – V I52
2021-10-26 02:43:22 C 23 46 02.43 +28 45 12.2 – V I52
2021-10-26 18:04:57 C 23 54 17.18 +29 33 18.6 – V I93
2021-10-26 18:15:20 C 23 54 22.79 +29 33 53.6 – V I93
2021-10-26 18:25:42 C 23 54 28.39 +29 34 28.7 – V I93
2021-10-28 02:45:42 C 00 14 33.95 +31 21 39.4 – V I52
2021-10-28 02:46:19 C 00 14 34.30 +31 21 41.2 – V I52
2021-10-28 02:46:55 C 00 14 34.71 +31 21 43.4 – V I52
2021-10-28 02:47:31 C 00 14 35.10 +31 21 45.3 – V I52
2021-10-29 02:43:04 C 00 32 13.84 +32 41 22.1 – V I52
2021-10-29 02:45:05 C 00 32 15.47 +32 41 28.1 – V I52
2021-10-29 02:45:26 C 00 32 15.67 +32 41 28.8 – V I52
2021-10-29 02:45:47 C 00 32 15.92 +32 41 30.0 – V I52
2021-11-04 07:12:41 C 03 18 42.06 +36 07 44.0 – V G96
2021-11-04 07:20:07 C 03 18 51.35 +36 07 29.3 – V G96
2021-11-04 07:27:34 C 03 19 00.63 +36 07 14.7 – V G96
2021-11-04 07:35:00 C 03 19 09.95 +36 07 00.1 – V G96
2021-11-04 22:23:42 C 03 38 28.68 +35 30 05.1 – V 203
2021-11-04 22:44:03 C 03 38 53.86 +35 29 10.0 – V 203
2021-11-04 23:06:12 C 03 39 21.16 +35 28 09.5 – V 203
2021-11-05 07:35:26 C 03 50 08.22 +35 02 58.0 – V G96
2021-11-05 07:45:54 C 03 50 20.70 +35 02 24.1 – V G96
2021-11-05 07:53:24 C 03 50 29.72 +35 02 00.4 – V G96
2021-11-05 08:00:53 C 03 50 38.53 +35 01 36.3 – V G96
2021-11-10 12:32:58 C 05 52 35.09 +25 03 08.5 – V I52
2021-11-10 12:33:19 C 05 52 35.32 +25 03 06.5 – V I52
2021-11-10 12:33:40 C 05 52 35.54 +25 03 04.8 – V I52
2021-11-10 12:34:02 C 05 52 35.80 +25 03 02.7 – V I52
2021-11-12 11:32:49 C 06 20 44.85 +21 19 31.4 – V I52
2021-11-12 11:33:26 C 06 20 45.18 +21 19 28.6 – V I52
2021-11-12 11:34:02 C 06 20 45.45 +21 19 25.8 – V I52
2021-11-12 11:36:15 C 06 20 46.53 +21 19 16.0 – V I52