IAA RAS IAA Minor Planet Database

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
1993-08-12 10:26:13 – 18 14 40.95 -63 21 35.4 – c 260
1993-08-12 11:21:14 – 18 14 36.03 -63 21 00.9 – c 260
2011-07-20 09:14:40 C 13 46 24.89 -25 24 04.6 – r E12
2011-07-20 09:27:24 C 13 46 30.61 -25 25 39.7 – r E12
2011-07-20 09:40:10 C 13 46 36.35 -25 27 15.2 – r E12
2011-07-20 10:43:44 C 13 47 04.90 -25 35 07.6 – r E12
2011-07-20 10:44:25 C 13 47 05.21 -25 35 12.9 – r E12
2011-07-20 10:45:07 C 13 47 05.53 -25 35 17.9 – r E12
2011-07-20 11:59:33 C 13 47 39.14 -25 44 25.8 – r E12
2011-07-20 12:02:07 C 13 47 40.30 -25 44 44.6 – r E12
2011-07-20 23:19:08 C 13 52 50.37 -27 05 53.4 – o 807
2011-07-20 23:25:53 C 13 52 53.27 -27 06 40.1 – o 807
2011-07-20 23:40:03 C 13 52 59.36 -27 08 18.1 – o 807
2011-07-20 23:46:01 C 13 53 01.92 -27 08 59.3 – o 807
2011-07-21 00:23:23 C 13 53 16.28 -27 13 19.7 – r I77
2011-07-21 00:29:07 C 13 53 18.83 -27 13 58.8 – r I77
2011-07-21 00:35:10 C 13 53 21.41 -27 14 39.7 – r I77
2011-07-21 02:20:49 C 13 54 09.68 -27 27 37.8 – r H21
2011-07-21 02:29:01 C 13 54 13.16 -27 28 32.8 – r H21
2011-07-21 02:39:28 C 13 54 17.70 -27 29 43.4 – r H21
2011-07-21 08:54:29 C 13 57 03.63 -28 10 36.9 – r E12
2011-07-21 10:34:23 C 13 57 45.44 -28 21 25.4 – r E12
2011-07-21 11:06:14 C 13 57 58.801 -28 24 49.90 – r E12
2011-07-21 12:23:43 C 13 58 31.46 -28 33 03.9 – r E12
2011-07-22 00:00:57 C 14 03 28.71 -29 45 34.7 – o 807
2011-07-22 00:11:04 C 14 03 32.76 -29 46 35.0 – o 807
2011-07-22 00:16:00 C 14 03 34.73 -29 47 04.4 – o 807
2011-07-22 00:20:55 C 14 03 36.70 -29 47 33.6 – o 807
2011-07-22 00:25:50 C 14 03 38.66 -29 48 03.0 – o 807
2011-07-22 00:30:45 C 14 03 40.62 -29 48 32.3 – o 807
2011-07-24 03:03:44 C 14 23 13.14 -34 11 13.5 – o 807
2011-07-24 03:09:28 C 14 23 15.16 -34 11 38.7 – o 807
2011-07-24 03:23:12 C 14 23 20.05 -34 12 38.5 – o 807
2011-07-24 09:04:42 C 14 25 24.56 -34 37 56.6 – r E12
2011-07-24 09:07:22 C 14 25 25.46 -34 38 07.7 – r E12
2011-07-25 01:35:13 C 14 31 06.26 -35 46 15.0 – o 807
2011-07-25 01:47:30 C 14 31 10.25 -35 47 02.5 – o 807
2011-07-26 00:25:27 C 14 38 37.41 -37 11 12.2 – o 807
2011-07-26 00:32:01 C 14 38 39.42 -37 11 35.2 – o 807
2011-07-26 00:38:35 C 14 38 41.43 -37 11 57.9 – o 807
2011-07-27 00:30:26 C 14 46 03.70 -38 30 06.9 – o 807
2011-07-27 00:37:25 C 14 46 05.71 -38 30 28.4 – o 807
2011-07-28 11:26:08 C 14 56 03.59 -40 08 13.8 – u E12
2011-08-01 09:43:53 C 15 19 22.44 -43 22 54.7 – r E12
2011-08-02 10:21:06 C 15 24 43.30 -44 01 15.7 – r E12
2011-08-03 11:42:43 C 15 29 58.04 -44 36 40.0 – r E12
2011-08-04 08:48:17 C 15 34 11.19 -45 03 28.6 – r E12
2011-08-05 10:41:24 C 15 39 06.40 -45 33 13.4 – r E12
2011-08-23 01:06:51 C 16 40 55.54 -49 24 13.2 – o 807
2011-08-23 01:18:46 C 16 40 56.91 -49 24 16.1 – o 807