2011 SR12

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8017552648 ± 1.57e-07
Semi-major axis (a)2.0223691832 AU ± 1.81e-07
Inclination (i)11.90902390° ± 2.47e-05
Long. of Asc. Node (Ω)203.05466673° ± 7.04e-05
Arg. of Perihelion (ω)23.84887951° ± 9.58e-05
Mean Anomaly (M)11.63918732° ± 1.39e-04
Mean Motion (n)0.3427059288°/day ± 4.59e-08
Perihelion dist (q)0.40092404 AU ± 3.20e-07
Aphelion dist (Q)3.64381432 AU ± 4.55e-07
Orbital Period2.87601177 yr ± 3.85e-07
Physical Parameters
H (abs. magnitude)19.59
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.230″
Uncertainty0
Orbit TypeApollo
MOID0.148331 AU
Observations Used50
Oppositions4
Arc Total2011-2017
First Observation Used2011-09-19
Last Observation Used2017-01-16
Observations (52)
Date Type RA Dec Mag Band Observatory
2011-09-19 08:41:51 C 00 37 42.044 +14 55 19.31 L F51
2011-09-19 08:57:08 C 00 37 40.199 +14 55 01.13 L F51
2011-09-19 09:16:51 C 00 37 37.832 +14 54 37.57 L F51
2011-09-19 09:33:35 C 00 37 35.817 +14 54 17.73 L F51
2011-09-20 10:45:38 C 00 34 39.70 +14 24 04.3 o 291
2011-09-20 10:57:28 C 00 34 38.24 +14 23 49.1 o 291
2011-09-20 11:05:17 C 00 34 37.38 +14 23 41.0 o 291
2011-09-20 13:10:10 C 00 34 23.149 +14 21 14.95 o 568
2011-09-20 13:47:02 C 00 34 18.827 +14 20 30.71 o 568
2011-09-20 22:27:22 C 00 33 20.18 +14 10 05.9 u C75
2011-09-20 22:28:17 C 00 33 20.07 +14 10 04.8 u C75
2011-09-20 22:35:23 C 00 33 18.96 +14 09 57.4 u B18
2011-09-20 22:39:23 C 00 33 18.47 +14 09 52.2 u B18
2011-09-20 22:43:25 C 00 33 17.99 +14 09 47.2 u B18
2011-09-20 23:43:15 C 00 33 11.46 +14 08 36.4 v I93
2011-09-20 23:55:04 C 00 33 10.10 +14 08 22.5 v I93
2011-09-21 00:11:13 C 00 33 08.25 +14 08 03.3 v I93
2011-09-21 11:08:11 C 00 31 53.44 +13 55 05.8 o 291
2011-09-21 11:14:45 C 00 31 52.66 +13 54 57.6 o 291
2011-09-21 11:20:24 C 00 31 52.00 +13 54 50.8 o 291
2011-10-01 09:02:19 C 00 08 09.12 +09 29 53.8 o 291
2011-10-01 09:07:43 C 00 08 08.64 +09 29 48.2 o 291
2011-10-01 09:15:21 C 00 08 07.96 +09 29 40.4 o 291
2011-10-18 04:25:07 C 23 42 31.53 +03 54 02.6 o 291
2011-10-18 04:29:18 C 23 42 31.30 +03 53 59.5 o 291
2011-10-18 04:33:29 C 23 42 31.07 +03 53 55.7 o 291
2011-10-19 03:40:51 C 23 41 34.28 +03 39 27.3 o 291
2011-10-19 03:45:30 C 23 41 34.03 +03 39 24.2 o 291
2011-10-19 03:50:07 C 23 41 33.80 +03 39 21.4 o 291
2017-01-12 07:43:24 C 05 46 20.029 -33 10 52.18 L F51
2017-01-12 08:12:38 C 05 46 08.900 -33 12 38.25 L F51
2017-01-12 08:27:15 C 05 46 03.312 -33 13 31.25 L F51
2017-01-12 19:16:26 C 05 41 57.92 -33 52 23.0 U K92
2017-01-12 19:21:53 C 05 41 55.76 -33 52 43.1 U K92
2017-01-12 19:25:10 C 05 41 54.46 -33 52 55.4 U K92
2017-01-12 19:27:22 C 05 41 53.59 -33 53 03.5 U K92
2017-01-12 19:36:04 C 05 41 50.14 -33 53 35.3 U K92
2017-01-13 01:03:58 C 05 39 42.52 -34 13 31.4 U W86
2017-01-13 01:14:40 C 05 39 38.20 -34 14 10.9 U W86
2017-01-13 01:20:06 C 05 39 36.02 -34 14 30.8 U W86
2017-01-13 01:23:19 C 05 39 34.69 -34 14 42.7 U W86
2017-01-13 10:44:34 C 05 35 49.72 -34 48 56.5 r Q62
2017-01-13 10:56:37 C 05 35 44.66 -34 49 40.4 r Q62
2017-01-13 11:11:04 C 05 35 38.64 -34 50 34.4 r Q62
2017-01-16 06:42:04 C 05 04 39.585 -38 58 14.29 L F51
2017-01-16 07:09:52 C 05 04 24.982 -38 59 55.17 L F51
2017-01-16 07:23:46 C 05 04 17.664 -39 00 45.42 L F51
2017-01-16 21:30:30 C 04 56 50.16 -39 50 52.1 U K92
2017-01-16 21:34:31 C 04 56 47.96 -39 51 06.2 U K92
2017-01-16 21:38:32 C 04 56 45.75 -39 51 20.3 U K92