2011 UP91

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4825467922 ± 8.90e-08
Semi-major axis (a)2.0524904237 AU ± 2.15e-08
Inclination (i)6.99877788° ± 9.46e-06
Long. of Asc. Node (Ω)30.27232046° ± 3.21e-05
Arg. of Perihelion (ω)62.30200024° ± 5.79e-05
Mean Anomaly (M)257.95608360° ± 1.81e-05
Mean Motion (n)0.3351896245°/day ± 5.26e-09
Perihelion dist (q)1.06206775 AU ± 1.83e-07
Aphelion dist (Q)3.04291309 AU ± 1.85e-07
Orbital Period2.94050356 yr ± 4.61e-08
Physical Parameters
H (abs. magnitude)21.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.397″
Uncertainty0
Orbit TypeAmor
MOID0.127691 AU
Observations Used69
Oppositions2
Arc Total2011-2014
First Observation Used2011-10-22
Last Observation Used2014-11-26
Observations (70)
Date Type RA Dec Mag Band Observatory
2012-02-20 04:53:47 C 06 37 39.74 +48 54 32.7 u H21
2012-03-17 02:59:25 C 08 34 34.73 +34 11 53.1 o H21
2012-03-17 03:24:17 C 08 34 37.72 +34 11 20.4 o H21
2012-03-17 03:49:09 C 08 34 40.74 +34 10 46.9 o H21
2014-09-24 08:42:02 C 03 27 21.74 +14 51 44.2 u H21
2014-09-24 09:07:19 C 03 27 24.01 +14 52 03.0 u H21
2014-09-24 09:35:36 C 03 27 26.53 +14 52 23.3 u H21
2014-09-25 08:31:49 C 03 29 35.76 +15 09 05.4 u H21
2014-09-25 09:02:47 C 03 29 38.56 +15 09 28.7 u H21
2014-09-25 09:38:50 C 03 29 41.81 +15 09 55.2 u H21
2014-10-21 09:36:58 C 04 44 08.27 +25 58 14.7 o 691
2014-10-21 10:39:57 C 04 44 17.88 +25 59 45.5 o 691
2014-11-15 09:14:45 C 07 13 15.44 +42 19 46.2 u H21
2014-11-15 09:22:40 C 07 13 18.20 +42 19 57.0 u H21
2014-11-15 09:29:48 C 07 13 20.70 +42 20 06.9 u H21
2014-11-26 09:55:22 C 08 56 18.27 +45 47 47.3 u H21
2014-11-26 09:59:44 C 08 56 19.92 +45 47 48.1 u H21
2014-11-26 10:04:06 C 08 56 21.58 +45 47 49.0 u H21
2014-11-26 10:07:54 C 08 56 23.03 +45 47 49.5 u H21
2014-11-26 10:12:59 C 08 56 24.97 +45 47 50.0 u H21