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
2011-10-26 10:20:06 C 05 09 59.945 +14 09 35.23 L F51
2011-10-26 10:41:00 C 05 09 59.330 +14 09 16.07 L F51
2011-10-26 11:22:59 C 05 09 58.038 +14 08 36.89 L F51
2011-10-29 09:19:17 C 05 07 46.50 +13 02 33.9 o 291
2011-10-29 09:24:28 C 05 07 46.33 +13 02 29.2 o 291
2011-10-29 09:29:39 C 05 07 46.12 +13 02 24.0 o 291
2011-12-01 08:08:23 C 04 25 25.265 +01 53 35.49 L F51
2011-12-01 08:28:19 C 04 25 24.076 +01 53 23.35 L F51
2011-12-01 08:48:17 C 04 25 22.895 +01 53 11.39 L F51
2011-12-01 09:08:14 C 04 25 21.704 +01 52 59.49 L F51
2011-12-02 10:40:10 C 04 23 54.10 +01 37 55.3 o F65
2011-12-02 10:43:39 C 04 23 53.90 +01 37 53.4 o F65
2011-12-02 10:47:08 C 04 23 53.69 +01 37 51.4 o F65
2011-12-02 10:50:37 C 04 23 53.49 +01 37 49.4 o F65
2012-01-02 06:02:48 C 03 57 13.23 -01 37 04.8 o 291
2012-01-02 06:53:00 C 03 57 12.55 -01 37 04.9 o 291
2016-06-04 13:46:17 C 22 05 01.391 +23 32 37.55 L F51
2016-06-04 13:58:05 C 22 05 02.770 +23 32 55.68 L F51
2016-06-04 14:21:40 C 22 05 05.463 +23 33 31.23 L F51
2016-07-09 10:46:38 C 23 46 13.47 +41 16 49.8 o 291
2016-07-09 10:50:28 C 23 46 13.94 +41 16 53.3 o 291
2016-07-09 10:54:20 C 23 46 14.41 +41 16 56.9 o 291
2016-10-02 07:32:49 C 02 13 09.56 +37 55 21.7 q G96
2016-10-02 07:35:04 C 02 13 09.47 +37 55 19.0 q G96
2016-10-02 07:37:19 C 02 13 09.45 +37 55 15.7 q G96
2016-10-02 07:39:34 C 02 13 09.38 +37 55 13.0 q G96
2016-10-08 09:34:09 C 02 09 29.885 +34 12 41.54 L F51
2016-10-08 09:50:21 C 02 09 29.329 +34 12 15.45 L F51
2016-10-08 10:06:41 C 02 09 28.773 +34 11 49.21 L F51
2016-10-08 10:23:07 C 02 09 28.209 +34 11 22.84 L F51
2016-10-09 07:31:22 C 02 08 50.94 +33 36 46.2 q G96
2016-10-09 07:41:21 C 02 08 50.59 +33 36 29.9 q G96
2016-10-09 07:50:48 C 02 08 50.25 +33 36 14.3 q G96
2016-10-09 08:00:29 C 02 08 49.93 +33 35 58.6 q G96
2016-10-13 04:53:11 C 02 05 57.02 +30 58 31.5 q G96
2016-10-13 05:07:20 C 02 05 56.52 +30 58 07.3 q G96
2016-10-13 05:14:41 C 02 05 56.23 +30 57 54.8 q G96
2016-10-13 05:23:34 C 02 05 55.92 +30 57 39.4 q G96
2016-10-21 05:55:09 C 01 59 35.48 +25 13 32.7 q G96
2016-10-21 06:01:20 C 01 59 35.24 +25 13 21.9 q G96
2016-10-21 06:07:29 C 01 59 35.00 +25 13 11.0 q G96
2016-10-21 06:13:39 C 01 59 34.81 +25 12 59.5 q G96
2016-11-07 05:00:31 C 01 49 11.22 +13 48 38.4 q G96
2016-11-07 05:06:49 C 01 49 11.14 +13 48 29.2 q G96
2016-11-07 05:12:59 C 01 49 11.00 +13 48 19.7 q G96
2016-11-07 05:19:08 C 01 49 10.87 +13 48 11.1 q G96
2016-11-19 06:08:48 C 01 47 07.03 +07 52 16.8 q G96
2016-11-19 06:15:14 C 01 47 06.98 +07 52 10.2 q G96
2016-11-19 06:21:34 C 01 47 07.00 +07 52 03.4 q G96
2016-11-19 06:28:02 C 01 47 06.99 +07 51 56.8 q G96