2011 UD21

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.0303441000
Semi-major axis (a)0.9786569000 AU
Inclination (i)1.06068000°
Long. of Asc. Node (Ω)22.34326000°
Arg. of Perihelion (ω)209.87501000°
Mean Anomaly (M)350.31317000°
Mean Motion (n)1.0180247800°/day
Perihelion dist (q)0.94896040 AU
Aphelion dist (Q)1.00835340 AU
Orbital Period0.96815680 yr
Physical Parameters
H (abs. magnitude)28.50
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.560″
Uncertainty3
Orbit TypeAten
MOID0.002654 AU
Observations Used83
Oppositions1
Arc Total
First Observation Used
Last Observation Used2011-11-24
Observations (90)
Date Type RA Dec Mag Band Observatory
2011-10-18 10:04:11 C 03 34 11.28 +17 45 14.9 r G96
2011-10-18 10:11:46 C 03 34 00.12 +17 45 48.5 r G96
2011-10-18 10:19:18 C 03 33 48.85 +17 46 21.9 r G96
2011-10-18 10:26:51 C 03 33 37.62 +17 46 54.8 r G96
2011-10-18 11:01:28 C 03 32 46.68 +17 49 20.1 r G96
2011-10-18 11:02:19 C 03 32 45.31 +17 49 24.3 r G96
2011-10-18 11:03:09 C 03 32 44.26 +17 49 27.0 r G96
2011-10-18 11:03:59 C 03 32 42.97 +17 49 30.7 r G96
2011-10-18 11:06:37 C 03 32 39.22 +17 49 41.0 r G96
2011-10-18 11:15:01 C 03 32 27.09 +17 50 14.6 r G96
2011-10-18 11:15:04 C 03 32 26.90 +17 50 18.4 c 854
2011-10-18 11:17:19 C 03 32 23.62 +17 50 28.4 c 854
2011-10-18 11:19:34 C 03 32 20.42 +17 50 36.5 c 854
2011-10-18 11:23:27 C 03 32 14.92 +17 50 47.7 r G96
2011-10-18 11:31:51 C 03 32 02.76 +17 51 20.8 r G96
2011-10-18 12:00:31 C 03 31 22.76 +17 53 06.9 r G96
2011-10-18 12:02:27 C 03 31 19.84 +17 53 14.7 r G96
2011-10-18 12:04:26 C 03 31 17.18 +17 53 21.8 r G96
2011-10-18 12:06:25 C 03 31 14.26 +17 53 29.4 r G96
2011-10-19 07:33:04 C 03 11 58.01 +19 17 59.9 19.2 c 704
2011-10-19 07:50:33 C 03 11 34.38 +19 19 11.8 19.0 c 704
2011-10-19 08:07:51 C 03 11 10.93 +19 20 20.6 19.3 c 704
2011-10-19 08:25:18 C 03 10 47.24 +19 21 28.7 19.3 c 704
2011-10-19 08:43:03 C 03 10 23.28 +19 22 34.4 18.9 c 704
2011-10-19 13:15:56 C 03 06 55.67 +19 36 59.4 o 300
2011-10-19 13:16:56 C 03 06 54.37 +19 37 03.6 o 300
2011-10-19 13:17:55 C 03 06 53.26 +19 37 08.8 o 300
2011-10-19 13:18:55 C 03 06 52.03 +19 37 12.8 o 300
2011-10-19 13:19:54 C 03 06 50.83 +19 37 17.5 o 300
2011-10-19 20:47:43 C 02 59 40.85 +19 55 53.3 u J95
2011-10-19 20:51:48 C 02 59 36.58 +19 56 10.6 u J95
2011-10-19 20:55:57 C 02 59 32.24 +19 56 29.2 u J95
2011-10-19 23:28:20 C 02 56 45.99 +20 09 03.5 u I93
2011-10-19 23:37:02 C 02 56 35.64 +20 09 35.4 u I93
2011-10-19 23:45:41 C 02 56 25.34 +20 10 06.8 u I93
2011-10-20 04:55:57 C 02 51 37.41 +20 50 46.7 o 807
2011-10-20 04:58:40 C 02 51 34.07 +20 50 55.4 o 807
2011-10-20 05:01:26 C 02 51 30.63 +20 51 04.0 o 807
2011-10-20 05:03:54 C 02 51 27.59 +20 51 12.0 o 807
2011-10-20 05:06:03 C 02 51 24.96 +20 51 18.5 o 807
2011-10-20 08:37:31 C 02 47 42.25 +20 38 17.9 u H36
2011-10-20 08:42:33 C 02 47 36.36 +20 38 29.2 u H36
2011-10-20 08:44:49 C 02 47 33.71 +20 38 34.8 u H36
2011-10-20 08:47:08 C 02 47 31.03 +20 38 39.5 u H36
2011-10-20 09:07:26 C 02 47 23.56 +20 42 07.2 r G96
2011-10-20 09:08:08 C 02 47 22.74 +20 42 09.0 r G96
2011-10-20 09:08:47 C 02 47 21.91 +20 42 10.4 r G96
2011-10-20 09:09:29 C 02 47 21.12 +20 42 12.2 r G96
2011-10-20 23:35:06 C 02 35 40.39 +21 14 19.7 t 204
2011-10-20 23:43:54 C 02 35 31.02 +21 14 40.8 t 204