2011 OA

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5205510658 ± 2.93e-08
Semi-major axis (a)2.1595156727 AU ± 1.12e-07
Inclination (i)9.15322982° ± 4.18e-06
Long. of Asc. Node (Ω)280.84259089° ± 3.81e-05
Arg. of Perihelion (ω)28.21269845° ± 4.62e-05
Mean Anomaly (M)184.17381499° ± 1.23e-04
Mean Motion (n)0.3105830394°/day ± 2.42e-08
Perihelion dist (q)1.03537749 AU ± 8.31e-08
Aphelion dist (Q)3.28365386 AU ± 1.82e-07
Orbital Period3.17347105 yr ± 2.48e-07
Physical Parameters
H (abs. magnitude)21.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.232″
Uncertainty0
Orbit TypeAmor
MOID0.045400 AU
Observations Used111
Oppositions2
Arc Total2011-2014
First Observation Used2011-07-19
Last Observation Used2014-07-31
Observations (112)
Date Type RA Dec Mag Band Observatory
2011-07-23 07:56:44 C 23 08 21.30 +44 42 44.1 o H21
2011-07-23 08:02:44 C 23 08 23.28 +44 43 01.9 o H21
2011-07-23 08:08:17 C 23 08 25.11 +44 43 18.6 o H21
2011-07-23 08:13:50 C 23 08 26.97 +44 43 35.2 o H21
2011-07-23 23:03:15 C 23 13 46.46 +45 24 44.5 u J95
2011-07-23 23:10:01 C 23 13 48.75 +45 25 03.9 u J95
2011-07-23 23:16:43 C 23 13 51.03 +45 25 23.3 u J95
2011-07-24 07:30:01 C 23 16 39.25 +45 47 45.6 o H21
2011-07-24 07:37:07 C 23 16 41.49 +45 48 04.5 o H21
2011-07-24 07:44:13 C 23 16 43.71 +45 48 23.3 o H21
2011-07-24 07:50:21 C 23 16 45.64 +45 48 39.8 o H21
2011-07-24 07:55:05 C 23 16 47.12 +45 48 52.3 o H21
2011-07-25 22:42:45 C 23 29 30.76 +47 18 40.2 c B49
2011-07-25 22:49:21 C 23 29 32.74 +47 18 54.9 c B49
2011-07-25 22:57:20 C 23 29 35.12 +47 19 12.9 c B49
2011-07-26 01:28:48 C 23 30 18.23 +47 24 44.5 c A24
2011-07-26 01:30:57 C 23 30 18.90 +47 24 49.5 c A24
2011-07-26 02:17:25 C 23 30 32.04 +47 26 26.8 c A24
2011-07-26 02:19:33 C 23 30 32.63 +47 26 31.5 c A24
2011-08-01 20:58:23 C 00 11 52.30 +51 10 22.8 r A17
2011-08-01 21:15:14 C 00 11 55.76 +51 10 40.2 r A17
2011-08-01 21:32:05 C 00 11 59.21 +51 10 57.2 r A17
2011-08-02 22:00:26 C 00 16 51.08 +51 31 20.3 u 151
2011-08-02 22:14:26 C 00 16 53.73 +51 31 32.5 u 151
2011-08-02 22:31:25 C 00 16 56.92 +51 31 47.4 u 151
2011-08-08 08:41:04 C 00 38 17.80 +52 45 58.7 t H21
2011-08-08 08:51:52 C 00 38 19.05 +52 46 03.4 t H21
2011-08-08 09:02:03 C 00 38 20.25 +52 46 07.5 t H21
2011-08-11 08:02:07 C 00 47 24.11 +53 09 08.2 o H21
2011-08-11 08:13:26 C 00 47 25.22 +53 09 12.0 o H21
2011-08-11 08:24:41 C 00 47 26.32 +53 09 15.1 o H21
2011-08-12 07:52:41 C 00 50 05.55 +53 14 54.5 t H21
2011-08-12 08:03:48 C 00 50 06.55 +53 14 58.0 t H21
2011-08-12 08:15:15 C 00 50 07.62 +53 15 00.7 t H21
2011-08-15 09:08:46 C 00 57 20.98 +53 27 34.5 o H21
2011-08-15 09:17:53 C 00 57 21.65 +53 27 35.7 o H21
2011-08-15 09:27:13 C 00 57 22.34 +53 27 36.6 o H21
2011-08-29 12:04:15 C 01 15 24.640 +53 09 26.24 o 568
2011-08-29 12:06:12 C 01 15 24.651 +53 09 25.85 o 568
2011-08-29 12:08:19 C 01 15 24.661 +53 09 25.47 o 568
2011-08-31 22:54:22 C 01 16 25.16 +52 54 19.8 u A74
2011-09-01 00:01:31 C 01 16 25.36 +52 54 03.7 u A74
2011-09-01 01:07:38 C 01 16 25.50 +52 53 47.4 u A74
2011-10-09 02:58:30 C 00 55 07.64 +41 29 24.1 t H21
2011-10-09 03:22:35 C 00 55 06.89 +41 28 57.8 t H21
2011-10-09 03:47:51 C 00 55 06.01 +41 28 29.5 t H21
2011-10-18 07:52:03 C 00 50 17.17 +37 15 47.4 o 291
2011-10-18 07:55:36 C 00 50 17.09 +37 15 43.1 o 291
2011-10-18 07:59:07 C 00 50 17.02 +37 15 39.4 o 291
2011-10-19 05:15:11 C 00 49 59.15 +36 51 15.8 o 291