2011 SQ12

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3960895140 ± 3.94e-08
Semi-major axis (a)1.7273297123 AU ± 4.24e-08
Inclination (i)13.68109539° ± 4.92e-06
Long. of Asc. Node (Ω)8.68483108° ± 2.59e-06
Arg. of Perihelion (ω)40.16659197° ± 1.56e-05
Mean Anomaly (M)64.88592462° ± 8.57e-05
Mean Motion (n)0.4341596025°/day ± 1.60e-08
Perihelion dist (q)1.04315253 AU ± 7.27e-08
Aphelion dist (Q)2.41150690 AU ± 9.02e-08
Orbital Period2.27019344 yr ± 8.37e-08
Physical Parameters
H (abs. magnitude)20.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.275″
Uncertainty0
Orbit TypeAmor
MOID0.095009 AU
Observations Used296
Radar Obs Used1
Oppositions1
Arc Total2011-2019
First Observation Used2011-09-19
Last Observation Used2019-01-10
Observations (302)
Date Type RA Dec Mag Band Observatory
2011-09-25 23:23:49 C 00 31 25.75 -10 01 33.7 t 204
2011-09-25 23:29:21 C 00 31 25.34 -10 01 15.0 t 204
2011-09-25 23:34:53 C 00 31 24.91 -10 00 56.3 t 204
2011-09-25 23:35:24 C 00 31 24.61 -10 00 56.2 o 046
2011-09-25 23:37:58 C 00 31 24.38 -10 00 47.4 o 046
2011-09-25 23:40:18 C 00 31 24.24 -10 00 39.6 o 046
2011-09-25 23:41:28 C 00 31 24.12 -10 00 35.3 o 046
2011-09-26 07:44:28 C 00 30 51.50 -09 31 47.9 o 807
2011-09-26 07:48:52 C 00 30 51.16 -09 31 32.5 o 807
2011-09-26 07:50:55 C 00 30 51.01 -09 31 25.4 o 807
2011-09-26 07:54:17 C 00 30 50.75 -09 31 13.7 o 807
2011-09-26 08:39:02 C 00 30 47.43 -09 28 37.2 o 807
2011-09-26 08:40:36 C 00 30 47.32 -09 28 31.7 o 807
2011-09-26 20:17:25 C 00 30 07.25 -08 48 46.8 u 160
2011-09-26 20:20:17 C 00 30 07.01 -08 48 36.4 u 160
2011-09-26 20:23:12 C 00 30 06.82 -08 48 25.7 u 160
2011-09-26 22:36:21 C 00 29 56.16 -08 40 32.1 o 046
2011-09-26 22:38:02 C 00 29 56.04 -08 40 26.2 o 046
2011-09-26 22:39:33 C 00 29 55.91 -08 40 20.4 o 046
2011-09-26 22:41:04 C 00 29 55.84 -08 40 15.5 o 046
2011-09-26 22:42:35 C 00 29 55.69 -08 40 09.3 o 046
2011-09-26 22:44:05 C 00 29 55.57 -08 40 04.1 o 046
2011-09-26 22:45:34 C 00 29 55.47 -08 39 58.4 o 046
2011-09-28 04:41:26 C 00 27 50.55 -06 45 52.0 u 821
2011-09-28 04:44:18 C 00 27 50.30 -06 45 40.7 u 821
2011-09-28 04:49:15 C 00 27 49.87 -06 45 21.3 u 821
2011-09-28 22:08:55 C 00 26 34.89 -05 36 54.2 u 160
2011-09-28 22:11:17 C 00 26 34.67 -05 36 44.5 u 160
2011-09-28 22:11:38 C 00 26 34.62 -05 36 43.5 c A53
2011-09-28 22:13:41 C 00 26 34.45 -05 36 34.1 u 160
2011-09-28 22:19:28 C 00 26 33.92 -05 36 11.2 c A53
2011-09-28 22:27:34 C 00 26 33.21 -05 35 38.0 c A53
2011-09-28 22:35:41 C 00 26 32.50 -05 35 04.6 c A53
2011-09-28 22:43:46 C 00 26 31.77 -05 34 31.2 c A53
2011-09-29 02:39:43 C 00 26 15.50 -05 16 51.6 o 807
2011-09-29 02:45:05 C 00 26 15.01 -05 16 29.4 o 807
2011-09-29 03:41:55 C 00 26 09.77 -05 12 32.0 o 807
2011-09-30 01:44:01 C 00 24 27.47 -03 37 25.0 u I39
2011-09-30 01:58:21 C 00 24 26.08 -03 36 21.2 u I39
2011-09-30 02:13:37 C 00 24 24.65 -03 35 13.5 u I39
2011-09-30 23:14:32 C 00 22 39.10 -02 00 41.3 o 046
2011-09-30 23:16:00 C 00 22 38.94 -02 00 34.4 o 046
2011-09-30 23:17:08 C 00 22 38.82 -02 00 28.9 o 046
2011-09-30 23:18:20 C 00 22 38.71 -02 00 23.1 o 046
2011-09-30 23:19:26 C 00 22 38.57 -02 00 17.8 o 046
2011-09-30 23:20:35 C 00 22 38.47 -02 00 12.4 o 046
2011-09-30 23:21:42 C 00 22 38.39 -02 00 07.7 o 046
2011-10-01 22:29:31 C 00 20 38.95 -00 08 12.9 o 046
2011-10-01 22:30:44 C 00 20 38.83 -00 08 06.8 o 046
2011-10-01 22:31:51 C 00 20 38.70 -00 08 01.3 o 046
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2011-10-16 02:43:00 -14569.95 0.4 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)