2011 UH21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4543861385 ± 2.00e-08
Semi-major axis (a)1.9594544648 AU ± 4.17e-09
Inclination (i)3.40143079° ± 2.92e-06
Long. of Asc. Node (Ω)21.19860390° ± 3.64e-05
Arg. of Perihelion (ω)51.01346287° ± 4.51e-05
Mean Anomaly (M)32.96375334° ± 1.15e-05
Mean Motion (n)0.3593432678°/day ± 1.15e-09
Perihelion dist (q)1.06910552 AU ± 3.93e-08
Aphelion dist (Q)2.84980341 AU ± 3.97e-08
Orbital Period2.74285446 yr ± 8.75e-09
Physical Parameters
H (abs. magnitude)23.05
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.282″
Uncertainty0
Orbit TypeAmor
MOID0.093940 AU
Observations Used74
Oppositions8
Arc Total2011-2023
First Observation Used2011-10-20
Last Observation Used2023-01-26
Observations (78)
Date Type RA Dec Mag Band Observatory
2011-10-20 09:48:38 C 03 23 53.66 +22 12 58.5 r G96
2011-10-20 09:57:04 C 03 23 54.92 +22 13 12.2 r G96
2011-10-20 10:05:19 C 03 23 56.11 +22 13 25.5 r G96
2011-10-20 10:13:36 C 03 23 57.26 +22 13 38.3 r G96
2011-10-20 10:56:35 C 03 24 03.42 +22 14 46.8 r G96
2011-10-20 11:05:56 C 03 24 04.75 +22 15 00.7 r G96
2011-10-20 11:15:24 C 03 24 06.12 +22 15 16.1 r G96
2011-10-20 11:24:51 C 03 24 07.52 +22 15 30.9 r G96
2011-10-20 11:35:52 C 03 24 09.07 +22 15 48.4 r G96
2011-10-20 11:43:17 C 03 24 10.15 +22 15 59.9 r G96
2011-10-20 11:50:42 C 03 24 11.26 +22 16 11.8 r G96
2011-10-20 11:58:05 C 03 24 12.31 +22 16 22.8 r G96
2011-10-20 12:14:25 C 03 24 14.72 +22 16 48.8 r G96
2011-10-20 12:17:09 C 03 24 15.08 +22 16 52.9 r G96
2011-10-20 12:19:49 C 03 24 15.51 +22 16 56.8 r G96
2011-10-20 12:22:32 C 03 24 15.87 +22 17 01.1 r G96
2011-10-20 23:56:19 C 03 26 07.80 +22 35 43.0 u I93
2011-10-21 00:10:39 C 03 26 09.53 +22 36 05.5 t 204
2011-10-21 00:11:35 C 03 26 10.05 +22 36 08.1 u I93
2011-10-21 00:29:36 C 03 26 12.73 +22 36 38.2 u I93
2011-10-21 00:48:00 C 03 26 15.06 +22 37 07.7 t 204
2011-10-21 08:02:46 C 03 27 23.54 +22 49 07.3 t H21
2011-10-21 08:06:49 C 03 27 24.15 +22 49 13.4 t H21
2011-10-21 08:10:55 C 03 27 24.79 +22 49 20.6 t H21
2011-10-21 08:15:02 C 03 27 25.39 +22 49 27.8 t H21
2011-10-23 08:19:16 C 03 35 25.44 +24 11 03.9 o 691
2011-10-23 08:39:31 C 03 35 27.83 +24 11 33.4 u H36
2011-10-23 08:44:53 C 03 35 29.51 +24 11 49.2 o 691
2011-10-23 08:51:15 C 03 35 29.76 +24 11 54.2 u H36
2011-10-23 09:10:35 C 03 35 33.69 +24 12 33.5 o 691
2011-10-23 09:14:50 C 03 35 33.52 +24 12 32.2 u H36
2011-10-24 13:03:07 C 03 40 28.014 +25 01 56.44 L F51
2011-10-24 13:25:05 C 03 40 31.647 +25 02 34.98 L F51
2011-10-24 14:08:52 C 03 40 38.948 +25 03 51.56 L F51
2011-11-05 07:18:16 C 04 45 20.35 +34 12 30.1 o H21
2011-11-05 07:23:07 C 04 45 21.65 +34 12 39.7 o H21
2011-11-05 07:40:04 C 04 45 26.13 +34 13 13.6 o H21
2011-11-18 07:55:56 C 06 31 57.79 +42 21 38.1 o H21
2011-11-18 08:02:08 C 06 31 59.99 +42 21 43.8 o H21
2011-11-18 08:08:14 C 06 32 02.13 +42 21 49.3 o H21
2011-11-18 08:15:02 C 06 32 04.54 +42 21 55.6 o H21
2011-11-18 08:23:16 C 06 32 07.44 +42 22 03.3 o H21
2011-11-18 11:57:32 C 06 33 24.68 +42 25 20.7 o 291
2011-11-18 11:58:49 C 06 33 25.12 +42 25 21.5 o 291
2011-11-18 12:00:04 C 06 33 25.61 +42 25 22.6 o 291
2011-11-19 04:29:36 C 06 39 35.47 +42 39 06.5 v 586
2011-11-19 04:32:19 C 06 39 36.47 +42 39 08.5 v 586
2011-11-19 04:35:47 C 06 39 37.60 +42 39 10.6 v 586
2011-11-19 04:37:31 C 06 39 38.28 +42 39 12.3 v 586
2011-11-19 04:39:16 C 06 39 38.87 +42 39 13.4 v 586