IAA RAS IAA Minor Planet Database

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
2011-10-01 22:34:02 C 00 20 38.47 -00 07 50.2 – o 046
2011-10-01 22:37:50 C 00 20 38.34 -00 07 27.9 – u 160
2011-10-01 22:39:44 C 00 20 38.12 -00 07 18.2 – u 160
2011-10-01 22:41:40 C 00 20 37.91 -00 07 08.7 – u 160
2011-10-01 22:43:45 C 00 20 37.71 -00 06 58.1 – u 160
2011-10-02 03:57:17 C 00 20 11.00 +00 19 18.6 – t H21
2011-10-02 04:01:50 C 00 20 10.51 +00 19 41.6 – t H21
2011-10-02 04:06:23 C 00 20 10.04 +00 20 04.5 – t H21
2011-10-02 04:10:56 C 00 20 09.56 +00 20 27.5 – t H21
2011-10-02 04:15:29 C 00 20 09.08 +00 20 50.6 – t H21
2011-10-02 04:19:42 C 00 20 08.64 +00 21 11.7 – t H21
2011-10-02 19:42:16 C 00 18 45.70 +01 40 16.1 – u A78
2011-10-02 19:48:17 C 00 18 45.07 +01 40 47.5 – u A78
2011-10-02 19:54:19 C 00 18 44.47 +01 41 19.3 – u A78
2011-10-02 20:00:31 C 00 18 43.82 +01 41 51.8 – u A78
2011-10-02 20:06:29 C 00 18 43.18 +01 42 23.5 – u A78
2011-10-02 20:37:39 C 00 18 39.73 +01 45 05.0 – u 235
2011-10-02 20:40:31 C 00 18 39.42 +01 45 20.0 – u 235
2011-10-02 20:43:24 C 00 18 39.11 +01 45 35.2 – u 235
2011-10-02 21:55:41 C 00 18 31.52 +01 51 57.7 – u 160
2011-10-02 21:58:29 C 00 18 31.21 +01 52 12.4 – u 160
2011-10-02 22:01:17 C 00 18 30.90 +01 52 27.1 – u 160
2011-10-02 22:22:03 C 00 18 28.61 +01 54 16.7 – r 104
2011-10-02 22:38:36 C 00 18 26.77 +01 55 44.5 – r 104
2011-10-02 23:05:08 C 00 18 24.01 +01 58 03.0 – c A24
2011-10-02 23:05:40 C 00 18 23.95 +01 58 06.0 – c A24
2011-10-02 23:06:12 C 00 18 23.89 +01 58 08.7 – c A24
2011-10-02 23:06:44 C 00 18 23.84 +01 58 11.5 – c A24
2011-10-02 23:14:01 C 00 18 22.77 +01 58 47.1 – o 046
2011-10-02 23:15:01 C 00 18 22.63 +01 58 52.3 – o 046
2011-10-02 23:17:12 C 00 18 22.41 +01 59 03.9 – o 046
2011-10-02 23:18:11 C 00 18 22.31 +01 59 08.9 – o 046
2011-10-03 00:27:51 C 00 18 15.02 +02 05 20.9 – c A24
2011-10-03 00:28:23 C 00 18 14.96 +02 05 23.5 – c A24
2011-10-03 00:28:56 C 00 18 14.90 +02 05 26.3 – c A24
2011-10-03 00:29:28 C 00 18 14.84 +02 05 29.1 – c A24
2011-10-03 07:36:00 C 00 17 35.05 +02 43 43.5 – r G96
2011-10-03 07:41:04 C 00 17 34.47 +02 44 10.7 – r G96
2011-10-03 07:46:04 C 00 17 33.90 +02 44 37.7 – r G96
2011-10-03 07:51:08 C 00 17 33.32 +02 45 04.9 – r G96
2011-10-03 21:33:19 C 00 16 15.84 +03 59 57.2 – u 160
2011-10-03 21:35:35 C 00 16 15.58 +04 00 10.0 – u 160
2011-10-03 21:37:52 C 00 16 15.33 +04 00 22.5 – u 160
2011-10-03 21:42:41 C 00 16 14.84 +04 00 48.1 – c A24
2011-10-03 21:43:46 C 00 16 14.73 +04 00 53.9 – c A24
2011-10-03 22:30:08 C 00 16 09.10 +04 05 09.0 – o 046
2011-10-03 22:31:10 C 00 16 08.97 +04 05 14.8 – o 046
2011-10-03 22:32:05 C 00 16 08.87 +04 05 19.7 – o 046
2011-10-03 22:33:00 C 00 16 08.74 +04 05 25.0 – o 046
2011-10-03 22:33:55 C 00 16 08.64 +04 05 30.2 – 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)