665390 (2009 HD82)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4766371298 ± 1.93e-08
Semi-major axis (a)1.2537505679 AU ± 5.57e-09
Inclination (i)5.80151265° ± 3.84e-06
Long. of Asc. Node (Ω)191.18909933° ± 3.74e-05
Arg. of Perihelion (ω)148.00040506° ± 4.01e-05
Mean Anomaly (M)227.70870251° ± 9.58e-06
Mean Motion (n)0.7020944857°/day ± 4.68e-09
Perihelion dist (q)0.65616650 AU ± 2.44e-08
Aphelion dist (Q)1.85133464 AU ± 2.55e-08
Orbital Period1.40383710 yr ± 9.35e-09
NGA Modelr2
A2-4.07704840e-14 ± 1.08e-14 AU/d²
Physical Parameters
H (abs. magnitude)21.69
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.330″
Uncertainty0
Orbit TypeApollo
MOID0.081262 AU
Observations Used197
Oppositions4
Arc Total2009-2023
First Observation Used2009-04-24
Last Observation Used2023-05-20
Observations (204)
Date Type RA Dec Mag Band Observatory
2023-05-20 06:35:56 C 12 25 20.586 +13 40 41.63 V G96
2023-05-20 06:44:03 C 12 25 19.312 +13 40 54.16 V G96
2023-05-20 06:52:10 C 12 25 18.023 +13 41 07.15 V G96
2023-05-20 07:00:16 C 12 25 16.705 +13 41 20.15 V G96