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
2021-07-12 04:42:09 C 17 22 21.93 +34 29 26.4 U I41
2021-07-12 05:30:08 C 17 22 21.08 +34 29 53.9 U I41
2021-07-12 05:52:50 C 17 22 20.67 +34 30 06.9 U I41
2021-07-12 06:55:59 C 17 22 19.53 +34 30 42.2 V V00
2021-07-12 07:03:00 C 17 22 19.41 +34 30 46.1 V V00
2021-07-12 07:10:03 C 17 22 19.30 +34 30 49.9 V V00
2021-07-12 07:17:06 C 17 22 19.19 +34 30 53.9 V V00
2021-07-12 07:21:12 C 17 22 19.22 +34 30 56.1 U I41
2021-07-14 04:40:20 C 17 21 51.95 +34 54 55.7 U I41
2021-07-14 05:46:11 C 17 21 51.06 +34 55 28.5 U I41
2021-07-17 07:54:14 C 17 21 26.097 +35 28 14.82 U F51
2021-07-17 08:11:24 C 17 21 25.957 +35 28 21.55 U F51
2021-07-17 08:28:37 C 17 21 25.793 +35 28 28.21 U F51
2021-07-17 08:45:51 C 17 21 25.651 +35 28 34.80 U F51
2021-08-18 20:45:31 C 17 46 40.92 +34 50 15.7 V L01
2021-08-18 20:55:29 C 17 46 41.57 +34 50 11.2 V L01
2021-08-18 21:05:27 C 17 46 42.20 +34 50 06.9 V L01
2021-09-03 04:55:18 C 18 17 57.45 +31 24 39.1 V G96
2021-09-03 05:09:01 C 18 17 58.79 +31 24 29.2 V G96
2021-09-03 05:15:54 C 18 17 59.45 +31 24 24.2 V G96