2011 OB

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5241369439 ± 1.03e-07
Semi-major axis (a)0.9039692282 AU ± 1.98e-09
Inclination (i)27.74136513° ± 1.02e-05
Long. of Asc. Node (Ω)106.22241139° ± 8.21e-06
Arg. of Perihelion (ω)48.91199494° ± 5.38e-06
Mean Anomaly (M)324.67972634° ± 1.66e-05
Mean Motion (n)1.1467844769°/day ± 3.77e-09
Perihelion dist (q)0.43016556 AU ± 9.35e-08
Aphelion dist (Q)1.37777290 AU ± 9.36e-08
Orbital Period0.85946950 yr ± 2.82e-09
Physical Parameters
H (abs. magnitude)19.31
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.179″
Uncertainty0
Orbit TypeAten
MOID0.011093 AU
Observations Used80
Oppositions5
Arc Total1993-2025
First Observation Used1993-08-12
Last Observation Used2025-04-28
Observations (89)
Date Type RA Dec Mag Band Observatory
2011-08-23 01:30:42 C 16 40 58.31 -49 24 18.2 o 807
2012-08-30 03:32:46 C 00 32 22.17 -67 09 53.9 u 807
2012-08-30 03:39:11 C 00 32 20.93 -67 10 03.5 u 807
2012-08-30 03:45:35 C 00 32 19.70 -67 10 13.1 u 807
2012-08-30 03:52:13 C 00 32 18.41 -67 10 23.0 u 807
2012-08-30 03:58:25 C 00 32 17.20 -67 10 32.3 u 807
2017-07-18 22:57:23 C 12 49 00.56 -01 55 31.6 u 807
2017-07-18 23:01:43 C 12 49 02.32 -01 56 05.4 u 807
2017-07-18 23:06:34 C 12 49 04.30 -01 56 44.0 u 807
2017-07-18 23:11:25 C 12 49 06.28 -01 57 21.9 u 807
2017-07-26 03:55:10 C 13 53 00.93 -20 51 49.5 o 291
2017-07-26 03:57:38 C 13 53 01.76 -20 52 01.3 o 291
2017-07-26 04:00:09 C 13 53 02.54 -20 52 14.2 o 291
2018-09-07 06:32:43 C 22 43 17.99 -71 16 12.2 U 807
2018-09-07 06:36:09 C 22 43 17.04 -71 16 13.5 U 807
2018-09-07 06:40:04 C 22 43 15.80 -71 16 14.4 U 807
2019-09-10 14:50:12 C 05 03 10.573 -42 32 54.27 U F51
2019-09-10 14:55:45 C 05 03 11.395 -42 33 02.21 U F51
2019-09-10 15:01:18 C 05 03 12.218 -42 33 09.80 U F51
2024-07-26 07:26:49 C 00 41 42.85 -44 07 34.3 X W84
2024-07-26 07:28:34 C 00 41 42.79 -44 07 38.4 X W84
2024-07-26 07:30:53 C 00 41 42.71 -44 07 45.0 X W84
2024-07-26 07:52:10 C 00 41 41.89 -44 08 44.5 X W84
2024-07-26 07:53:54 C 00 41 41.83 -44 08 49.5 X W84
2024-07-26 07:56:13 C 00 41 41.75 -44 08 55.6 X W84
2024-07-26 09:07:37 C 00 41 39.01 -44 12 14.1 X W84
2024-07-26 09:09:19 C 00 41 38.94 -44 12 18.9 X W84
2024-07-26 09:11:42 C 00 41 38.84 -44 12 25.4 X W84
2024-08-08 00:31:58 C 00 20 05.378 -57 23 46.10 V M22
2024-08-08 00:38:35 C 00 20 04.639 -57 24 01.84 V M22
2024-08-08 00:40:32 C 00 20 04.402 -57 24 05.94 V M22
2024-08-08 00:56:19 C 00 20 02.340 -57 24 44.03 V M22
2024-08-10 07:57:49 C 00 12 52.939 -59 29 22.09 V W68
2024-08-10 08:02:25 C 00 12 52.195 -59 29 31.99 V W68
2024-08-10 08:53:07 C 00 12 44.664 -59 31 23.12 V W68
2024-08-10 09:02:58 C 00 12 43.234 -59 31 43.07 V W68
2025-04-28 09:48:36 C 23 03 59.68 -10 05 13.4 X W84
2025-04-28 10:01:01 C 23 04 00.96 -10 05 14.9 X W84
2025-04-28 10:13:29 C 23 04 02.25 -10 05 16.3 X W84