505019 (2011 QH21)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2334527614 ± 3.44e-07
Semi-major axis (a)1.3076428411 AU ± 6.26e-09
Inclination (i)22.84290134° ± 1.08e-05
Long. of Asc. Node (Ω)241.27041228° ± 3.06e-05
Arg. of Perihelion (ω)269.40235791° ± 1.03e-04
Mean Anomaly (M)21.81968432° ± 1.70e-04
Mean Motion (n)0.6591413625°/day ± 4.74e-09
Perihelion dist (q)1.00237001 AU ± 4.50e-07
Aphelion dist (Q)1.61291567 AU ± 4.50e-07
Orbital Period1.49531852 yr ± 1.07e-08
Physical Parameters
H (abs. magnitude)19.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.271″
Uncertainty0
Orbit TypeApollo
MOID0.192268 AU
Observations Used105
Oppositions4
Arc Total2011-2023
First Observation Used2011-08-23
Last Observation Used2023-11-25
Observations (106)
Date Type RA Dec Mag Band Observatory
2023-11-04 03:45:39 C 22 07 20.748 +23 53 53.16 V G96
2023-11-04 03:53:07 C 22 07 21.036 +23 53 43.73 V G96
2023-11-04 04:00:34 C 22 07 21.353 +23 53 34.22 V G96
2023-11-25 05:21:10 C 22 37 51.719 +14 41 31.48 X F51
2023-11-25 05:35:45 C 22 37 52.795 +14 41 17.92 X F51
2023-11-25 05:51:29 C 22 37 53.930 +14 41 03.85 X F51