2011 QG21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4385156195 ± 1.29e-06
Semi-major axis (a)1.2163115291 AU ± 1.04e-08
Inclination (i)18.77832551° ± 3.25e-05
Long. of Asc. Node (Ω)324.93412024° ± 1.13e-05
Arg. of Perihelion (ω)255.12642055° ± 1.03e-04
Mean Anomaly (M)286.24895496° ± 8.92e-05
Mean Motion (n)0.7347592144°/day ± 9.42e-09
Perihelion dist (q)0.68293993 AU ± 1.57e-06
Aphelion dist (Q)1.74968313 AU ± 1.57e-06
Orbital Period1.34142759 yr ± 1.72e-08
Physical Parameters
H (abs. magnitude)21.71
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.340″
Uncertainty0
Orbit TypeApollo
MOID0.050202 AU
Observations Used47
Oppositions1
Arc Total2011-2015
First Observation Used2011-08-22
Last Observation Used2015-09-12
Observations (57)
Date Type RA Dec Mag Band Observatory
2011-08-22 23:26:18 C 22 54 14.91 +10 05 16.0 r J75
2011-08-22 23:41:30 C 22 54 09.99 +10 05 28.8 r J75
2011-08-22 23:56:44 C 22 54 05.08 +10 05 43.3 r J75
2011-08-24 08:22:20 C 22 44 29.409 +10 31 52.16 L F51
2011-08-24 08:37:56 C 22 44 24.823 +10 32 03.74 L F51
2011-08-24 09:09:18 C 22 44 15.577 +10 32 27.16 L F51
2011-08-26 00:55:33 C 22 33 30.52 +10 57 52.7 r J75
2011-08-26 01:06:51 C 22 33 27.56 +10 57 58.6 r J75
2011-08-26 01:18:07 C 22 33 24.55 +10 58 05.4 r J75
2011-08-26 03:36:20 C 22 32 51.22 +10 59 21.1 t H21
2011-08-26 03:41:36 C 22 32 49.83 +10 59 24.0 t H21
2011-08-26 03:46:52 C 22 32 48.45 +10 59 26.9 t H21
2011-08-26 03:52:08 C 22 32 47.08 +10 59 30.0 t H21
2011-08-26 07:10:12 C 22 31 55.45 +11 01 20.3 u H36
2011-08-29 22:47:47 C 22 12 18.54 +11 36 46.9 t 204
2011-08-29 23:10:39 C 22 12 13.84 +11 36 53.6 t 204
2011-08-29 23:33:50 C 22 12 09.08 +11 36 59.9 t 204
2011-08-30 04:56:58 C 22 11 06.20 +11 38 31.8 t H21
2011-08-30 05:01:24 C 22 11 05.29 +11 38 32.7 t H21
2011-08-30 05:05:54 C 22 11 04.37 +11 38 34.1 t H21
2011-08-30 05:09:56 C 22 11 03.57 +11 38 35.0 t H21
2011-09-06 03:40:22 C 21 45 19.63 +11 56 51.1 o H21
2011-09-06 03:49:11 C 21 45 18.51 +11 56 51.4 o H21
2011-09-06 03:57:22 C 21 45 17.50 +11 56 51.3 o H21
2011-09-06 04:07:26 C 21 45 16.21 +11 56 51.2 o H21
2011-09-18 04:50:40 C 21 22 57.79 +11 24 55.7 o 291
2011-09-18 04:56:17 C 21 22 57.47 +11 24 53.7 o 291
2011-09-18 05:01:56 C 21 22 57.24 +11 24 53.3 o 291
2015-08-17 22:44:36 C 20 28 15.31 -29 02 07.3 o Z22
2015-08-17 22:48:05 C 20 28 14.85 -29 01 27.9 o Z22
2015-08-17 22:55:58 C 20 28 13.91 -29 00 01.2 o Z22
2015-08-18 22:04:49 C 20 26 23.32 -25 04 48.4 o Z22
2015-08-18 22:23:46 C 20 26 21.39 -25 01 50.4 o Z22
2015-08-18 22:40:26 C 20 26 19.88 -24 59 19.4 o Z22
2015-08-19 19:54:02 C 20 25 01.81 -21 56 57.4 q 587
2015-08-19 20:05:29 C 20 25 00.95 -21 55 26.9 q 587
2015-08-19 20:06:31 C 20 25 00.92 -21 55 17.9 q 587
2015-08-19 20:07:34 C 20 25 00.81 -21 55 10.9 q 587
2015-08-19 22:08:52 C 20 24 51.96 -21 39 14.3 q 204
2015-08-19 22:14:23 C 20 24 51.57 -21 38 31.0 q 204
2015-08-19 22:19:54 C 20 24 51.19 -21 37 47.8 q 204
2015-09-01 06:47:17 C 20 21 13.20 -03 32 01.5 t 705
2015-09-01 06:49:09 C 20 21 13.19 -03 31 58.5 t 705
2015-09-01 06:51:01 C 20 21 13.18 -03 31 55.6 t 705
2015-09-06 03:24:08 C 20 22 45.19 -01 02 29.7 u H21
2015-09-06 03:33:17 C 20 22 45.24 -01 02 20.3 u H21
2015-09-06 03:42:34 C 20 22 45.31 -01 02 10.8 u H21
2015-09-09 05:48:22 C 20 24 11.593 +00 04 25.92 L F51
2015-09-09 06:23:59 C 20 24 12.085 +00 04 54.03 L F51
2015-09-09 06:41:51 C 20 24 12.330 +00 05 08.01 L F51