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
2011-09-19 07:00:48 C 00 39 21.50 -17 13 33.6 18.7 c 704
2011-09-19 07:20:08 C 00 39 20.58 -17 12 53.9 19.0 c 704
2011-09-19 07:39:02 C 00 39 19.65 -17 12 13.1 19.0 c 704
2011-09-19 07:56:47 C 00 39 18.76 -17 11 37.3 18.8 c 704
2011-09-19 08:14:34 C 00 39 17.84 -17 10 58.4 18.8 c 704
2011-09-20 00:00:12 C 00 38 41.75 -16 37 01.3 – u C75
2011-09-20 00:01:00 C 00 38 41.67 -16 36 59.6 – u C75
2011-09-20 00:01:29 C 00 38 41.69 -16 36 58.5 – u C75
2011-09-20 00:02:04 C 00 38 41.62 -16 36 57.2 – u C75
2011-09-20 00:02:53 C 00 38 41.62 -16 36 55.4 – u C75
2011-09-20 03:07:51 C 00 38 36.11 -16 29 04.9 – o 807
2011-09-20 03:11:36 C 00 38 35.91 -16 28 56.9 – o 807
2011-09-20 03:15:23 C 00 38 35.69 -16 28 48.4 – o 807
2011-09-20 03:19:15 C 00 38 35.51 -16 28 39.6 – o 807
2011-09-20 03:23:01 C 00 38 35.31 -16 28 31.8 – o 807
2011-09-20 06:53:51 C 00 38 25.88 -16 21 28.3 18.3 c 704
2011-09-20 07:11:55 C 00 38 24.92 -16 20 47.6 18.4 c 704
2011-09-20 07:47:58 C 00 38 23.02 -16 19 26.1 18.2 c 704
2011-09-20 08:06:00 C 00 38 22.04 -16 18 46.8 18.0 c 704
2011-09-20 14:45:51 C 00 38 06.23 -16 02 36.2 – u D90
2011-09-20 14:52:52 C 00 38 05.84 -16 02 20.0 – u D90
2011-09-20 14:59:55 C 00 38 05.47 -16 02 03.7 – u D90
2011-09-20 20:48:25 C 00 37 51.19 -15 49 29.8 – u B18
2011-09-20 20:54:27 C 00 37 50.87 -15 49 15.7 – u B18
2011-09-20 20:58:29 C 00 37 50.65 -15 49 06.2 – u B18
2011-09-21 01:11:57 C 00 37 41.46 -15 37 59.8 – u I39
2011-09-21 01:30:58 C 00 37 40.48 -15 37 15.2 – u I39
2011-09-21 01:50:57 C 00 37 39.44 -15 36 28.3 – u I39
2011-09-21 02:58:24 C 00 37 35.68 -15 33 48.5 – o 844
2011-09-21 02:59:22 C 00 37 35.53 -15 33 46.1 – o 844
2011-09-21 03:00:20 C 00 37 35.49 -15 33 43.9 – o 844
2011-09-21 03:01:18 C 00 37 35.45 -15 33 41.2 – o 844
2011-09-21 03:02:15 C 00 37 35.38 -15 33 39.1 – o 844
2011-09-21 03:03:14 C 00 37 35.37 -15 33 37.0 – o 844
2011-09-21 03:04:12 C 00 37 35.29 -15 33 35.3 – o 844
2011-09-21 07:39:12 C 00 37 22.23 -15 23 26.3 18.1 c 704
2011-09-21 08:16:43 C 00 37 20.09 -15 21 54.8 17.9 c 704
2011-09-21 08:36:21 C 00 37 18.95 -15 21 07.3 18.0 c 704
2011-09-21 08:55:31 C 00 37 17.87 -15 20 19.7 17.8 c 704
2011-09-23 06:51:33 C 00 35 04.94 -13 19 13.8 – o 807
2011-09-23 06:57:47 C 00 35 04.54 -13 18 56.0 – o 807
2011-09-23 07:04:35 C 00 35 04.09 -13 18 37.0 – o 807
2011-09-24 06:43:59 C 00 33 48.09 -12 09 59.7 – o 807
2011-09-24 06:48:28 C 00 33 47.78 -12 09 46.0 – o 807
2011-09-24 06:52:57 C 00 33 47.47 -12 09 32.4 – o 807
2011-09-24 06:57:23 C 00 33 47.16 -12 09 18.9 – o 807
2011-09-24 23:01:45 C 00 32 54.05 -11 21 03.3 – o 046
2011-09-24 23:03:02 C 00 32 53.94 -11 20 59.3 – o 046
2011-09-24 23:07:47 C 00 32 53.59 -11 20 44.3 – o 046
2011-09-24 23:08:57 C 00 32 53.52 -11 20 41.0 – 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)