2011 QS2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5010254097 ± 2.22e-08
Semi-major axis (a)1.6783627414 AU ± 2.70e-09
Inclination (i)17.60315846° ± 1.10e-05
Long. of Asc. Node (Ω)323.85322540° ± 3.43e-06
Arg. of Perihelion (ω)78.85638406° ± 6.96e-06
Mean Anomaly (M)170.93627417° ± 6.91e-06
Mean Motion (n)0.4532977165°/day ± 1.09e-09
Perihelion dist (q)0.83746036 AU ± 3.73e-08
Aphelion dist (Q)2.51926512 AU ± 3.75e-08
Orbital Period2.17434646 yr ± 5.24e-09
Physical Parameters
H (abs. magnitude)20.76
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.206″
Uncertainty0
Orbit TypeApollo
MOID0.074925 AU
Observations Used143
Oppositions8
Arc Total2011-2025
First Observation Used2011-08-20
Last Observation Used2025-03-04
Observations (149)
Date Type RA Dec Mag Band Observatory
2011-08-25 21:26:37 C 19 17 06.20 -13 31 08.2 u 160
2011-08-25 21:27:46 C 19 17 05.79 -13 31 02.2 u 160
2011-08-25 21:28:56 C 19 17 05.37 -13 30 55.9 u 160
2011-08-28 03:08:21 C 18 58 29.45 -08 26 42.7 o H21
2011-08-28 03:12:42 C 18 58 27.85 -08 26 16.4 o H21
2011-08-28 03:22:46 C 18 58 24.14 -08 25 15.8 o H21
2011-08-28 03:27:16 C 18 58 22.51 -08 24 49.2 o H21
2011-08-29 20:11:11 C 18 43 44.79 -04 12 22.7 v 204
2011-08-29 20:23:04 C 18 43 40.29 -04 11 06.7 v 204
2011-08-29 20:32:31 C 18 43 36.72 -04 10 06.4 v 204
2011-08-30 01:29:05 C 18 41 49.88 -03 38 19.3 t H21
2011-08-30 01:35:19 C 18 41 47.50 -03 37 39.3 t H21
2011-08-30 01:41:26 C 18 41 45.17 -03 37 00.1 t H21
2011-08-30 19:53:11 C 18 35 03.96 -01 38 45.1 c A48
2011-08-30 19:54:59 C 18 35 03.22 -01 38 33.6 c A48
2011-08-30 19:56:47 C 18 35 02.42 -01 38 23.3 c A48
2011-08-30 19:58:35 C 18 35 01.75 -01 38 10.7 c A48
2011-08-30 20:12:20 C 18 34 56.45 -01 36 38.2 u A78
2011-08-30 20:19:34 C 18 34 53.68 -01 35 50.4 u A78
2011-08-30 20:24:55 C 18 34 51.65 -01 35 15.6 u A78
2011-09-01 01:19:51 C 18 24 09.42 +01 37 02.8 o H21
2011-09-01 01:24:23 C 18 24 07.62 +01 37 32.6 o H21
2011-09-01 01:29:41 C 18 24 05.55 +01 38 08.2 o H21
2011-09-01 19:15:29 C 18 17 26.02 +03 37 48.2 u B38
2011-09-01 19:18:02 C 18 17 25.06 +03 38 05.5 u B38
2011-09-01 19:20:10 C 18 17 24.22 +03 38 20.1 u B38
2011-09-01 19:32:48 C 18 17 19.24 +03 39 45.3 u B38
2011-09-02 01:13:23 C 18 15 12.14 +04 18 15.0 o H21
2011-09-02 01:17:33 C 18 15 10.49 +04 18 43.3 o H21
2011-09-02 01:25:51 C 18 15 07.23 +04 19 39.7 o H21
2011-09-02 01:33:02 C 18 15 04.42 +04 20 28.3 o H21
2011-09-06 01:27:26 C 17 38 39.82 +15 00 40.9 o H21
2011-09-06 01:31:33 C 17 38 38.18 +15 01 07.4 o H21
2011-09-06 01:35:39 C 17 38 36.56 +15 01 33.9 o H21
2011-09-06 01:39:56 C 17 38 34.86 +15 02 01.1 o H21
2011-09-06 01:47:23 C 17 38 31.88 +15 02 49.0 o H21
2011-09-08 01:30:54 C 17 20 21.65 +19 59 27.0 t H21
2011-09-08 01:37:18 C 17 20 19.14 +20 00 05.2 t H21
2011-09-08 01:43:24 C 17 20 16.73 +20 00 40.9 t H21
2011-09-08 01:49:27 C 17 20 14.32 +20 01 17.4 t H21
2011-09-09 20:34:50 C 17 04 02.24 +24 05 56.3 r 203
2011-09-09 21:32:24 C 17 03 40.11 +24 11 06.6 r 203
2011-09-12 01:10:31 C 16 44 21.92 +28 35 52.7 o H21
2011-09-12 01:14:11 C 16 44 20.51 +28 36 10.2 o H21
2011-09-12 01:23:22 C 16 44 17.01 +28 36 53.6 o H21
2011-09-13 01:46:56 C 16 35 15.51 +30 29 30.7 o H21
2011-09-13 01:57:41 C 16 35 11.43 +30 30 18.1 o H21
2011-09-13 02:03:20 C 16 35 09.26 +30 30 43.2 o H21
2011-09-14 01:26:24 C 16 26 35.92 +32 11 16.5 o H21
2011-09-14 01:39:32 C 16 26 30.96 +32 12 10.4 o H21