2011 OC18

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4380644906 ± 1.91e-08
Semi-major axis (a)2.1099917530 AU ± 2.66e-08
Inclination (i)6.90782283° ± 2.79e-06
Long. of Asc. Node (Ω)149.82224405° ± 7.00e-06
Arg. of Perihelion (ω)180.19098641° ± 2.33e-05
Mean Anomaly (M)233.31340184° ± 4.04e-05
Mean Motion (n)0.3215815613°/day ± 6.08e-09
Perihelion dist (q)1.18567929 AU ± 4.30e-08
Aphelion dist (Q)3.03430422 AU ± 5.56e-08
Orbital Period3.06493407 yr ± 5.80e-08
Physical Parameters
H (abs. magnitude)20.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.162″
Uncertainty0
Orbit TypeAmor
MOID0.172446 AU
Observations Used146
Oppositions4
Arc Total2011-2017
First Observation Used2011-07-29
Last Observation Used2017-05-27
Observations (158)
Date Type RA Dec Mag Band Observatory
2011-08-31 08:56:17 C 23 27 34.17 -11 18 27.2 18.1 c 704
2011-08-31 09:15:52 C 23 27 36.32 -11 18 47.1 18.4 c 704
2011-09-03 22:57:02 C 23 37 40.08 -12 43 47.6 o 046
2011-09-03 23:00:54 C 23 37 40.47 -12 43 51.4 o 046
2011-09-03 23:02:49 C 23 37 40.67 -12 43 51.8 o 046
2011-09-08 05:25:50 C 23 48 35.52 -14 13 50.8 o H21
2011-09-08 05:34:38 C 23 48 36.32 -14 13 58.1 o H21
2011-09-08 05:38:24 C 23 48 36.66 -14 14 01.0 o H21
2011-09-16 08:30:40 C 00 05 53.38 -16 24 03.4 o 807
2011-09-16 08:36:38 C 00 05 53.82 -16 24 06.4 o 807
2011-09-16 08:42:19 C 00 05 54.21 -16 24 09.1 o 807
2011-09-19 06:56:18 C 00 11 05.88 -16 58 14.3 18.7 c 704
2011-09-19 07:14:20 C 00 11 06.96 -16 58 22.7 18.9 c 704
2011-09-19 07:34:33 C 00 11 08.12 -16 58 30.7 19.0 c 704
2011-09-19 07:52:17 C 00 11 09.22 -16 58 39.1 18.9 c 704
2011-09-19 08:10:03 C 00 11 10.27 -16 58 45.7 19.2 c 704
2011-09-20 09:49:37 C 00 12 56.113 -17 08 59.85 L F51
2011-09-20 10:04:21 C 00 12 56.937 -17 09 05.64 L F51
2011-09-20 10:22:54 C 00 12 57.974 -17 09 12.84 L F51
2011-09-20 10:39:25 C 00 12 58.894 -17 09 19.22 L F51
2011-09-24 07:36:01 C 00 18 44.96 -17 38 44.1 r 703
2011-09-24 07:47:21 C 00 18 45.64 -17 38 45.2 r 703
2011-09-24 07:58:42 C 00 18 46.15 -17 38 48.9 r 703
2011-09-24 08:10:15 C 00 18 46.69 -17 38 50.5 r 703
2011-10-13 06:33:08 C 00 38 29.54 -17 22 03.1 u 448
2011-10-13 07:08:06 C 00 38 30.38 -17 21 53.3 u 448
2011-10-13 07:43:32 C 00 38 31.32 -17 21 42.5 u 448
2011-10-25 05:43:42 C 00 47 48.17 -15 31 41.6 o 807
2011-10-25 05:55:50 C 00 47 48.50 -15 31 35.7 o 807
2011-10-25 06:07:49 C 00 47 48.83 -15 31 29.9 o 807
2014-05-27 02:42:57 C 17 07 02.94 -04 32 53.3 t 950
2014-05-27 02:45:43 C 17 07 02.85 -04 32 52.3 t 950
2014-05-27 02:48:31 C 17 07 02.74 -04 32 51.2 t 950
2014-05-27 02:51:18 C 17 07 02.66 -04 32 50.2 t 950
2014-05-27 02:54:04 C 17 07 02.57 -04 32 49.1 t 950
2014-05-27 02:56:51 C 17 07 02.47 -04 32 48.2 t 950
2014-05-27 03:00:39 C 17 07 02.35 -04 32 46.7 t 950
2014-05-27 03:03:25 C 17 07 02.26 -04 32 45.9 t 950
2014-05-27 03:06:13 C 17 07 02.17 -04 32 44.7 t 950
2014-05-27 03:09:00 C 17 07 02.08 -04 32 43.6 t 950
2014-05-27 03:11:46 C 17 07 02.00 -04 32 42.7 t 950
2014-05-27 03:14:34 C 17 07 01.89 -04 32 41.6 t 950
2014-05-29 01:39:00 C 17 05 36.690 -04 16 01.66 t J04
2014-05-29 01:49:48 C 17 05 36.294 -04 15 56.96 t J04
2014-07-27 07:46:05 C 16 28 42.670 -07 22 38.79 L F51
2014-07-27 08:04:45 C 16 28 43.053 -07 22 51.74 L F51
2014-07-27 08:41:56 C 16 28 43.846 -07 23 17.27 L F51
2014-07-29 07:29:18 C 16 30 06.458 -07 56 26.10 L F51
2014-07-29 07:46:43 C 16 30 06.923 -07 56 38.59 L F51
2014-07-29 08:21:30 C 16 30 07.852 -07 57 03.43 L F51