2011 UD

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7787909000
Semi-major axis (a)2.0386355000 AU
Inclination (i)8.85014000°
Long. of Asc. Node (Ω)357.12721000°
Arg. of Perihelion (ω)147.04273000°
Mean Anomaly (M)283.83934000°
Mean Motion (n)0.3386060300°/day
Perihelion dist (q)0.45096470 AU
Aphelion dist (Q)3.62630630 AU
Orbital Period2.91077990 yr
Physical Parameters
H (abs. magnitude)20.70
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.400″
Uncertainty7
Orbit TypeApollo
MOID0.103603 AU
Observations Used107
Oppositions1
Arc Total
First Observation Used
Last Observation Used2011-11-02
Observations (120)
Date Type RA Dec Mag Band Observatory
2011-10-17 07:04:53 C 01 19 13.54 +27 32 15.4 r 703
2011-10-17 07:17:13 C 01 19 10.81 +27 32 31.7 r 703
2011-10-17 07:29:34 C 01 19 08.07 +27 32 47.3 r 703
2011-10-17 07:41:51 C 01 19 05.30 +27 33 04.8 r 703
2011-10-17 08:43:28 C 01 18 51.48 +27 34 22.6 r 703
2011-10-17 08:58:58 C 01 18 48.02 +27 34 41.9 r 703
2011-10-17 09:02:44 C 01 18 46.84 +27 34 41.5 u H36
2011-10-17 09:14:43 C 01 18 44.42 +27 35 02.7 r 703
2011-10-17 09:15:52 C 01 18 43.99 +27 34 58.3 u H36
2011-10-17 09:56:56 C 01 18 35.07 +27 35 56.6 o 291
2011-10-17 09:58:26 C 01 18 34.73 +27 35 58.0 o 291
2011-10-17 09:59:55 C 01 18 34.40 +27 36 00.5 o 291
2011-10-17 11:04:36 C 01 18 21.04 +27 37 33.2 t F65
2011-10-17 11:09:03 C 01 18 20.02 +27 37 38.9 t F65
2011-10-17 11:13:28 C 01 18 19.02 +27 37 44.5 t F65
2011-10-17 12:45:06 C 01 17 58.19 +27 39 42.3 o F65
2011-10-17 12:53:49 C 01 17 56.20 +27 39 53.3 o F65
2011-10-17 13:26:58 C 01 17 51.07 +27 40 33.8 o 300
2011-10-17 13:28:18 C 01 17 50.70 +27 40 34.7 o 300
2011-10-17 13:29:39 C 01 17 50.42 +27 40 36.4 o 300
2011-10-17 13:30:58 C 01 17 50.14 +27 40 38.3 o 300
2011-10-17 13:32:18 C 01 17 49.84 +27 40 39.8 o 300
2011-10-17 13:33:38 C 01 17 49.53 +27 40 41.7 o 300
2011-10-17 15:34:52 C 01 17 21.33 +27 43 51.1 u D90
2011-10-17 15:41:00 C 01 17 19.94 +27 43 58.8 u D90
2011-10-17 15:48:01 C 01 17 18.35 +27 44 07.6 u D90
2011-10-17 18:12:29 C 01 16 48.04 +27 46 38.5 19.3 u 118
2011-10-17 18:28:52 C 01 16 44.31 +27 47 00.7 19.3 u 118
2011-10-17 18:36:48 C 01 16 42.49 +27 47 11.6 19.1 u 118
2011-10-17 19:35:32 C 01 16 28.97 +27 48 31.4 o 046
2011-10-17 19:36:15 C 01 16 29.01 +27 48 32.7 u 595
2011-10-17 19:37:31 C 01 16 28.56 +27 48 32.5 o 046
2011-10-17 19:42:03 C 01 16 27.63 +27 48 37.8 o 046
2011-10-17 19:43:37 C 01 16 27.27 +27 48 41.2 o 046
2011-10-17 19:48:17 C 01 16 26.12 +27 48 45.9 o 046
2011-10-17 19:50:34 C 01 16 25.68 +27 48 51.9 u 595
2011-10-17 20:04:55 C 01 16 22.34 +27 49 11.6 u 595
2011-10-17 20:08:25 C 01 16 21.71 +27 49 13.2 o 246
2011-10-17 20:08:59 C 01 16 21.46 +27 49 14.1 o 246
2011-10-17 20:09:34 C 01 16 21.26 +27 49 14.8 o 246
2011-10-17 20:39:03 C 01 16 14.51 +27 49 58.2 r 104
2011-10-17 20:44:20 C 01 16 13.28 +27 50 05.7 r 104
2011-10-17 20:49:38 C 01 16 12.03 +27 50 12.6 r 104
2011-10-17 20:55:46 C 01 16 10.61 +27 50 19.9 t 204
2011-10-17 21:04:59 C 01 16 08.46 +27 50 32.2 t 204
2011-10-17 21:14:06 C 01 16 06.34 +27 50 44.9 t 204
2011-10-17 21:42:03 C 01 16 00.06 +27 51 22.5 v I93
2011-10-17 21:49:01 C 01 15 58.41 +27 51 31.8 v I93
2011-10-17 21:55:58 C 01 15 56.79 +27 51 41.2 v I93
2011-10-18 03:04:59 C 01 14 46.50 +27 58 37.6 o G48