2011 UR255

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3269467726 ± 6.37e-08
Semi-major axis (a)1.8709488931 AU ± 1.83e-08
Inclination (i)21.27024225° ± 6.16e-06
Long. of Asc. Node (Ω)221.74093637° ± 9.19e-06
Arg. of Perihelion (ω)98.38714140° ± 2.42e-05
Mean Anomaly (M)235.58970956° ± 1.12e-05
Mean Motion (n)0.3851406770°/day ± 5.64e-09
Perihelion dist (q)1.25924819 AU ± 1.20e-07
Aphelion dist (Q)2.48264960 AU ± 1.22e-07
Orbital Period2.55913317 yr ± 3.75e-08
Physical Parameters
H (abs. magnitude)19.81
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.185″
Uncertainty0
Orbit TypeAmor
MOID0.434681 AU
Observations Used118
Oppositions6
Arc Total2011-2021
First Observation Used2011-10-26
Last Observation Used2021-09-03
Observations (120)
Date Type RA Dec Mag Band Observatory
2016-12-23 08:10:50 C 02 05 16.38 +01 12 24.0 1 T09
2016-12-23 08:28:26 C 02 05 17.04 +01 12 22.1 1 T09
2016-12-23 08:44:00 C 02 05 17.62 +01 12 20.6 1 T09
2021-05-16 12:04:38 C 17 49 43.485 +00 49 36.19 U F51
2021-05-16 12:41:26 C 17 49 43.584 +00 50 41.16 U F51
2021-05-16 12:59:53 C 17 49 43.631 +00 51 13.69 U F51
2021-05-20 13:08:03 C 17 50 03.241 +03 44 56.30 U F51
2021-05-20 13:24:33 C 17 50 03.174 +03 45 26.59 U F51
2021-05-20 13:40:56 C 17 50 03.116 +03 45 56.87 U F51
2021-05-20 13:57:24 C 17 50 03.053 +03 46 27.16 U F51
2021-06-03 08:35:13 C 17 46 42.57 +14 12 43.2 U I41
2021-06-03 09:05:00 C 17 46 41.80 +14 13 39.9 U I41
2021-06-03 09:12:20 C 17 46 42.323 +14 13 56.48 U F51
2021-06-03 09:28:22 C 17 46 41.938 +14 14 27.01 U F51
2021-06-03 10:00:41 C 17 46 41.155 +14 15 28.13 U F51
2021-06-05 08:56:49 C 17 45 41.19 +15 43 21.0 U I41
2021-06-05 09:27:05 C 17 45 40.36 +15 44 17.1 U I41
2021-06-12 12:15:02 C 17 41 14.477 +20 49 51.82 U F51
2021-06-12 12:34:11 C 17 41 13.839 +20 50 24.13 U F51
2021-06-12 12:53:19 C 17 41 13.202 +20 50 56.45 U F51
2021-06-12 13:12:25 C 17 41 12.562 +20 51 28.56 U F51
2021-06-16 08:23:08 C 17 38 28.81 +23 21 07.1 V G96
2021-06-16 08:30:31 C 17 38 28.52 +23 21 19.5 V G96
2021-06-16 08:37:54 C 17 38 28.26 +23 21 30.8 V G96
2021-06-16 08:45:17 C 17 38 28.01 +23 21 42.5 V G96
2021-06-19 09:02:26 C 17 36 12.52 +25 12 01.2 V U68
2021-06-19 09:08:15 C 17 36 12.31 +25 12 09.2 V U68
2021-06-19 09:34:04 C 17 36 11.36 +25 12 47.0 V U68
2021-06-19 09:39:54 C 17 36 11.17 +25 12 55.4 V U68
2021-06-27 07:41:28 C 17 30 18.76 +29 23 17.7 V G96
2021-06-27 07:49:34 C 17 30 18.48 +29 23 26.8 V G96
2021-06-27 07:57:40 C 17 30 18.18 +29 23 36.1 V G96
2021-06-27 08:05:47 C 17 30 17.92 +29 23 45.6 V G96
2021-07-04 05:26:28 C 17 25 51.75 +32 11 55.2 U I41
2021-07-04 06:27:46 C 17 25 50.00 +32 12 48.9 U I41
2021-07-04 07:42:19 C 17 25 47.85 +32 13 53.5 U I41
2021-07-04 07:56:07 C 17 25 47.47 +32 14 05.4 U I41
2021-07-06 07:30:50 C 17 24 43.62 +32 53 41.0 V G96
2021-07-06 07:38:17 C 17 24 43.49 +32 53 46.1 V G96
2021-07-06 07:45:42 C 17 24 43.26 +32 53 52.1 V G96
2021-07-06 07:53:08 C 17 24 43.08 +32 53 58.3 V G96
2021-07-08 07:24:35 C 17 23 47.03 +33 29 44.5 U I41
2021-07-08 07:42:47 C 17 23 46.59 +33 29 57.4 U I41
2021-07-10 04:58:05 C 17 23 01.48 +34 00 36.3 U I41
2021-07-10 06:02:54 C 17 23 00.06 +34 01 18.4 V V00
2021-07-10 06:09:58 C 17 22 59.89 +34 01 22.6 V V00
2021-07-10 06:17:00 C 17 22 59.76 +34 01 27.5 V V00
2021-07-10 06:24:05 C 17 22 59.63 +34 01 32.0 V V00
2021-07-10 07:26:22 C 17 22 58.44 +34 02 10.9 U I41
2021-07-10 07:44:17 C 17 22 58.07 +34 02 22.2 U I41