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
2015-09-10 05:54:30 C 20 24 43.304 +00 22 40.00 L F51
2015-09-10 06:12:04 C 20 24 43.575 +00 22 52.78 L F51
2015-09-10 06:47:05 C 20 24 44.098 +00 23 18.22 L F51
2015-09-12 05:54:58 C 20 25 52.184 +00 54 58.84 L F51
2015-09-12 06:12:23 C 20 25 52.499 +00 55 09.67 L F51
2015-09-12 06:29:51 C 20 25 52.809 +00 55 20.59 L F51
2015-09-12 06:47:22 C 20 25 53.133 +00 55 31.50 L F51