2021 UB2

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4615568000
Semi-major axis (a)1.7717281000 AU
Inclination (i)20.96837000°
Long. of Asc. Node (Ω)33.57170000°
Arg. of Perihelion (ω)31.48570000°
Mean Anomaly (M)250.36930000°
Mean Motion (n)0.4179347400°/day
Perihelion dist (q)0.95397490 AU
Aphelion dist (Q)2.58948130 AU
Orbital Period2.35828130 yr
Physical Parameters
H (abs. magnitude)27.29
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.710″
Uncertainty7
Orbit TypeApollo
MOID0.004740 AU
Observations Used47
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-10-28
Observations (52)
Date Type RA Dec Mag Band Observatory
2021-10-27 11:39:02 C 01 08 04.72 +30 54 53.8 X 381
2021-10-27 11:39:11 C 01 08 04.09 +30 55 19.6 X 381
2021-10-27 12:36:26 C 01 04 05.23 +33 47 33.1 X 381
2021-10-27 12:36:34 C 01 04 04.57 +33 47 57.6 X 381
2021-10-27 12:38:50 C 01 03 54.72 +33 54 46.6 X 381
2021-10-27 12:38:59 C 01 03 54.14 +33 55 12.0 X 381
2021-10-27 13:14:26 C 01 01 16.65 +35 41 20.7 X 381
2021-10-27 13:14:33 C 01 01 16.05 +35 41 43.6 X 381
2021-10-27 16:27:04 C 00 45 05.86 +44 59 55.3 r P93
2021-10-27 16:28:23 C 00 44 58.52 +45 03 34.1 r P93
2021-10-27 16:51:02 C 00 45 25.62 +46 00 46.3 V L18
2021-10-27 16:52:51 C 00 45 22.44 +46 05 03.1 V K88
2021-10-27 16:53:03 C 00 45 14.48 +46 06 29.3 V L18
2021-10-27 16:54:29 C 00 45 13.33 +46 09 42.6 V K88
2021-10-27 16:55:03 C 00 45 03.28 +46 12 10.5 V L18
2021-10-27 17:28:10 C 00 42 15.39 +47 43 50.6 q 104
2021-10-27 17:33:12 C 00 41 46.11 +47 57 49.1 q 104
2021-10-27 17:33:39 C 00 41 43.48 +47 59 05.0 q 104
2021-10-27 18:07:10 C 00 38 21.99 +49 30 21.7 V 204
2021-10-27 18:13:10 C 00 37 57.51 +49 46 47.4 V B49
2021-10-27 18:14:01 C 00 37 39.60 +49 49 01.2 V 204
2021-10-27 18:14:05 C 00 37 51.95 +49 49 15.5 V B49
2021-10-27 18:14:44 C 00 37 47.85 +49 51 02.0 V B49
2021-10-27 18:24:05 C 00 36 36.47 +50 16 11.1 V 204
2021-10-27 18:24:24 C 00 36 29.24 +50 17 59.4 V L01
2021-10-27 18:26:53 C 00 36 13.44 +50 24 38.5 V L01
2021-10-27 18:40:46 C 00 34 43.83 +51 01 44.0 V L01
2021-10-27 18:41:41 C 00 34 37.86 +51 04 08.9 V L01
2021-10-27 18:42:36 C 00 34 31.84 +51 06 34.9 V L01
2021-10-27 18:42:48 C 00 34 57.39 +51 05 51.8 X Z41
2021-10-27 18:42:59 C 00 34 56.30 +51 06 22.5 X Z41
2021-10-27 18:43:32 C 00 34 25.79 +51 09 02.9 V L01
2021-10-27 18:44:28 C 00 34 19.64 +51 11 32.1 V L01
2021-10-27 18:45:10 C 00 34 14.98 +51 13 24.0 V L01
2021-10-27 18:50:42 C 00 33 38.26 +51 27 44.6 V 595
2021-10-27 18:54:33 C 00 33 12.74 +51 37 53.6 V 595
2021-10-27 18:56:51 C 00 32 57.19 +51 43 57.4 V 595
2021-10-27 19:05:32 C 00 32 28.26 +52 05 59.1 X Z41
2021-10-27 19:16:19 C 00 31 08.39 +52 33 35.3 X 958
2021-10-27 19:19:10 C 00 30 48.97 +52 40 58.3 X 958
2021-10-27 19:22:06 C 00 30 29.02 +52 48 32.2 X 958
2021-10-27 19:26:26 C 00 29 58.93 +52 59 43.8 X 958
2021-10-27 19:29:59 C 00 29 34.29 +53 08 53.1 X 958
2021-10-27 19:33:31 C 00 29 09.61 +53 17 56.5 X 958
2021-10-27 23:37:45 C 23 57 35.71 +62 33 39.2 X W34
2021-10-27 23:41:01 C 23 57 03.77 +62 40 23.3 X W34
2021-10-27 23:43:48 C 23 56 36.15 +62 46 08.5 X W34
2021-10-28 17:57:50 C 18 54 40.69 +77 08 09.1 V 033
2021-10-28 17:58:15 C 18 54 34.08 +77 08 04.5 V 033
2021-10-28 17:58:39 C 18 54 27.52 +77 07 59.8 V 033