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
2011-10-18 03:10:10 C 01 14 45.31 +27 58 47.0 o G48
2011-10-18 03:11:57 C 01 14 44.80 +27 58 49.2 o G48
2011-10-18 06:15:10 C 01 14 00.56 +28 02 59.7 r 703
2011-10-18 06:24:40 C 01 13 58.36 +28 03 13.1 r 703
2011-10-18 06:34:07 C 01 13 55.92 +28 03 25.5 r 703
2011-10-18 06:48:16 C 01 13 52.50 +28 03 45.0 r 703
2011-10-18 06:57:51 C 01 13 50.08 +28 03 58.1 r 703
2011-10-18 07:07:30 C 01 13 47.78 +28 04 10.5 r 703
2011-10-18 07:17:05 C 01 13 45.30 +28 04 24.1 r 703
2011-10-21 21:25:04 C 00 49 15.70 +30 09 46.9 o 046
2011-10-21 21:26:17 C 00 49 15.15 +30 09 47.4 o 046
2011-10-21 21:27:30 C 00 49 15.00 +30 09 49.7 o 046
2011-10-21 21:29:51 C 00 49 14.03 +30 09 53.3 o 046
2011-10-21 21:32:12 C 00 49 13.36 +30 09 57.3 o 046
2011-10-22 04:02:34 C 00 46 59.93 +30 20 12.2 u 448
2011-10-22 04:13:23 C 00 46 56.04 +30 20 29.3 u 448
2011-10-22 04:26:59 C 00 46 51.14 +30 20 51.0 u 448
2011-10-22 06:19:27 C 00 46 11.14 +30 23 43.8 t G56
2011-10-22 06:30:13 C 00 46 07.22 +30 24 00.4 t G56
2011-10-22 06:41:04 C 00 46 03.28 +30 24 18.1 t G56
2011-10-22 20:28:04 C 00 41 03.11 +30 45 50.4 r A17
2011-10-22 20:39:21 C 00 40 58.78 +30 46 08.4 r A17
2011-10-22 20:50:35 C 00 40 54.47 +30 46 26.6 r A17
2011-10-23 01:59:27 C 00 38 57.99 +30 54 40.1 o H21
2011-10-23 02:02:15 C 00 38 56.91 +30 54 44.9 o H21
2011-10-23 02:10:58 C 00 38 53.47 +30 54 59.1 o H21
2011-10-23 04:36:58 C 00 37 55.90 +30 58 54.5 u H36
2011-10-23 04:41:51 C 00 37 53.99 +30 59 02.5 u H36
2011-10-23 04:45:18 C 00 37 52.63 +30 59 07.8 u H36
2011-10-23 04:47:33 C 00 37 51.70 +30 59 11.0 u H36
2011-10-23 07:07:52 C 00 36 58.108 +31 03 04.73 L F51
2011-10-23 07:25:23 C 00 36 51.017 +31 03 33.38 L F51
2011-10-23 07:46:25 C 00 36 42.519 +31 04 07.46 L F51
2011-10-23 19:49:55 C 00 31 50.01 +31 23 07.0 c A53
2011-10-23 20:03:09 C 00 31 44.42 +31 23 28.5 c A53
2011-10-23 20:16:39 C 00 31 38.70 +31 23 50.4 c A53
2011-10-24 06:49:46 C 00 27 07.34 +31 40 54.0 r 703
2011-10-24 06:52:37 C 00 27 05.92 +31 40 58.1 u 448
2011-10-24 06:59:43 C 00 27 02.76 +31 41 09.2 u 448
2011-10-24 07:05:52 C 00 27 00.14 +31 41 19.3 r 703
2011-10-24 07:07:26 C 00 26 59.33 +31 41 21.5 u 448
2011-10-24 07:14:19 C 00 26 56.21 +31 41 32.1 u 448
2011-10-24 07:21:11 C 00 26 53.16 +31 41 43.0 u 448
2011-10-24 07:21:57 C 00 26 52.90 +31 41 44.4 r 703
2011-10-24 07:38:04 C 00 26 45.70 +31 42 10.1 r 703
2011-10-25 01:19:58 C 00 18 45.24 +32 10 21.3 o H21
2011-10-25 01:24:28 C 00 18 43.05 +32 10 28.9 o H21
2011-10-25 01:28:58 C 00 18 40.90 +32 10 35.9 o H21
2011-10-25 01:37:42 C 00 18 36.68 +32 10 50.3 o H21
2011-10-25 23:39:10 C 00 07 38.78 +32 45 26.6 u I15