2011 UE21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7308554689 ± 9.11e+02
Semi-major axis (a)2.2499919168 AU ± 6.99e+03
Inclination (i)44.70519560° ± 5.42e+04
Long. of Asc. Node (Ω)9.43130385° ± 1.04e+04
Arg. of Perihelion (ω)256.26994334° ± 2.41e+04
Mean Anomaly (M)92.21208129° ± 6.99e+06
Mean Motion (n)0.2920974100°/day ± 1.36e+03
Perihelion dist (q)0.59469860 AU ± 2.78e+03
Aphelion dist (Q)3.90462860 AU ± 1.23e+04
Orbital Period3.37424310 yr ± 1.57e+04
Physical Parameters
H (abs. magnitude)20.40
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.353″
Uncertainty5
Orbit TypeApollo
MOID0.080123 AU
Observations Used26
Oppositions1
Arc Total2011-2011
First Observation Used
Last Observation Used2011-10-28
Observations (35)
Date Type RA Dec Mag Band Observatory
2011-10-19 04:35:57 C 22 03 49.86 -11 05 45.0 r G96
2011-10-19 04:43:28 C 22 03 50.22 -11 05 15.3 r G96
2011-10-19 04:51:01 C 22 03 50.58 -11 04 45.8 r G96
2011-10-19 04:58:36 C 22 03 50.94 -11 04 15.9 r G96
2011-10-19 05:39:06 C 22 03 52.88 -11 01 37.3 r G96
2011-10-19 05:48:12 C 22 03 53.31 -11 01 01.0 r G96
2011-10-19 05:57:25 C 22 03 53.74 -11 00 25.7 r G96
2011-10-19 06:06:40 C 22 03 54.21 -10 59 49.4 r G96
2011-10-19 19:42:01 C 22 04 37.52 -10 08 04.3 u I93
2011-10-19 20:15:14 C 22 04 39.13 -10 06 00.3 u I93
2011-10-19 20:51:19 C 22 04 40.82 -10 03 45.8 u I93
2011-10-19 21:25:45 C 22 04 42.49 -10 01 40.1 u J95
2011-10-19 21:35:16 C 22 04 42.98 -10 01 05.1 u J95
2011-10-19 21:46:03 C 22 04 43.46 -10 00 23.8 u J95
2011-10-20 03:16:22 C 22 05 00.59 -09 40 09.8 u H36
2011-10-20 03:27:41 C 22 05 01.02 -09 39 28.2 u H36
2011-10-20 03:57:01 C 22 05 02.34 -09 37 42.3 u H36
2011-10-20 05:16:08 C 22 05 06.25 -09 32 54.0 r G96
2011-10-20 05:20:30 C 22 05 06.43 -09 32 38.0 r G96
2011-10-20 05:24:56 C 22 05 06.64 -09 32 22.4 r G96
2011-10-21 02:37:48 C 22 06 11.08 -08 18 25.2 o 291
2011-10-21 02:39:31 C 22 06 11.18 -08 18 20.2 o 291
2011-10-21 02:41:14 C 22 06 11.33 -08 18 12.5 o 291
2011-10-21 03:59:45 C 22 06 14.44 -08 13 54.5 u H36
2011-10-21 04:17:52 C 22 06 15.40 -08 12 49.0 u H36
2011-10-21 04:27:02 C 22 06 15.76 -08 12 19.8 u H36
2011-10-23 00:43:05 C 22 08 23.57 -05 54 04.9 o H21
2011-10-23 00:52:18 C 22 08 23.96 -05 53 38.7 o H21
2011-10-23 01:01:29 C 22 08 24.38 -05 53 12.2 o H21
2011-10-23 01:19:08 C 22 08 25.13 -05 52 21.1 o H21
2011-10-24 00:30:17 C 22 09 29.60 -04 47 14.6 o H21
2011-10-24 00:56:19 C 22 09 30.71 -04 46 04.2 o H21
2011-10-28 01:48:12 C 22 13 48.64 -00 56 55.1 o 291
2011-10-28 01:51:08 C 22 13 48.66 -00 56 52.3 o 291
2011-10-28 01:54:05 C 22 13 48.68 -00 56 49.8 o 291