2017 OU18

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3774433295 ± 1.76e-06
Semi-major axis (a)0.8257051605 AU ± 7.30e-09
Inclination (i)30.38237209° ± 4.39e-04
Long. of Asc. Node (Ω)302.20619736° ± 2.14e-05
Arg. of Perihelion (ω)185.25730719° ± 1.16e-04
Mean Anomaly (M)206.15209202° ± 2.29e-04
Mean Motion (n)1.3136352020°/day ± 1.74e-08
Perihelion dist (q)0.51404826 AU ± 1.45e-06
Aphelion dist (Q)1.13736207 AU ± 1.45e-06
Orbital Period0.75030441 yr ± 9.95e-09
NGA Modelr2
A29.78200205e-14 ± 1.41e-14 AU/d²
Physical Parameters
H (abs. magnitude)23.98
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.410″
Uncertainty0
Orbit TypeAten
MOID0.115882 AU
Observations Used33
Oppositions4
Arc Total2011-2023
First Observation Used2011-07-25
Last Observation Used2023-07-21
Observations (33)
Date Type RA Dec Mag Band Observatory
2011-07-25 10:45:51 C 21 13 49.038 -07 27 23.53 U F51
2011-07-25 11:07:29 C 21 13 36.334 -07 25 30.95 U F51
2011-07-25 11:50:53 C 21 13 10.809 -07 21 44.64 U F51
2014-07-26 09:59:28 C 20 47 57.575 -07 13 44.22 U F51
2014-07-26 10:17:11 C 20 47 46.983 -07 12 08.78 L F51
2014-07-26 10:17:34 C 20 47 46.783 -07 12 07.20 U F51
2014-07-26 10:34:55 C 20 47 36.420 -07 10 33.87 L F51
2017-07-27 09:01:05 C 20 22 41.479 -06 43 25.33 L F51
2017-07-27 09:19:16 C 20 22 30.848 -06 41 46.60 L F51
2017-07-27 10:30:21 C 20 21 49.308 -06 35 21.24 L F51
2017-07-28 05:01:43 C 20 11 31.25 -04 55 57.6 q H36
2017-07-28 05:23:53 C 20 11 18.83 -04 53 59.3 q H36
2017-07-28 05:39:40 C 20 11 09.81 -04 52 34.7 q H36
2017-07-28 08:34:59 C 20 09 35.187 -04 36 43.27 U 568
2017-07-28 08:40:25 C 20 09 32.118 -04 36 14.50 U 568
2017-07-29 20:25:08 C 19 50 38.60 -01 32 07.7 S 033
2017-07-29 21:08:03 C 19 50 16.45 -01 28 26.9 q 104
2017-07-29 21:10:09 C 19 50 15.32 -01 28 16.5 20.0 q 104
2017-07-29 21:23:58 C 19 50 08.03 -01 27 07.4 q 104
2017-07-29 21:41:57 C 19 49 58.72 -01 25 38.5 q 104
2017-07-29 23:06:17 C 19 49 14.66 -01 18 44.0 S 033
2017-07-29 23:09:35 C 19 49 12.92 -01 18 27.1 S 033
2017-07-29 23:12:53 C 19 49 11.19 -01 18 10.6 S 033
2017-08-12 02:52:46 C 18 02 20.08 +15 06 48.2 u H21
2017-08-12 03:10:52 C 18 02 16.33 +15 07 18.8 u H21
2017-08-12 03:28:44 C 18 02 12.60 +15 07 47.4 u H21
2023-07-15 14:11:13 C 23 00 24.977 -31 55 39.58 V T12
2023-07-15 14:13:43 C 23 00 23.705 -31 55 34.25 V T12
2023-07-15 14:16:10 C 23 00 22.460 -31 55 29.12 V T12
2023-07-19 01:08:04 C 22 15 37.090 -28 09 30.95 V Z84
2023-07-19 01:29:19 C 22 15 24.307 -28 08 20.18 V Z84
2023-07-19 01:49:50 C 22 15 11.883 -28 07 09.81 V Z84
2023-07-21 02:14:14 C 21 45 51.094 -25 00 14.65 V Z84