2009 DG9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5865204777 ± 1.40e-07
Semi-major axis (a)2.9432790963 AU ± 3.18e-07
Inclination (i)20.95992225° ± 3.46e-05
Long. of Asc. Node (Ω)139.96297047° ± 4.58e-05
Arg. of Perihelion (ω)39.52974071° ± 2.12e-04
Mean Anomaly (M)98.43345361° ± 1.63e-04
Mean Motion (n)0.1951933902°/day ± 3.16e-08
Perihelion dist (q)1.21698563 AU ± 4.32e-07
Aphelion dist (Q)4.66957256 AU ± 6.51e-07
Orbital Period5.04948596 yr ± 8.18e-07
Physical Parameters
H (abs. magnitude)20.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.420″
Uncertainty0
Orbit TypeAmor
MOID0.286895 AU
Observations Used53
Oppositions4
Arc Total2009-2014
First Observation Used2009-02-21
Last Observation Used2014-02-22
Observations (58)
Date Type RA Dec Mag Band Observatory
2009-05-15 03:57:24 C 14 45 48.82 +43 47 36.9 o H55
2009-05-15 04:24:24 C 14 45 49.43 +43 47 05.0 o H55
2014-02-22 21:13:21 C 06 22 57.29 +15 40 28.2 21.6 t 950
2014-02-22 21:16:38 C 06 22 57.32 +15 40 32.9 21.9 t 950
2014-02-22 21:19:55 C 06 22 57.36 +15 40 37.9 21.7 t 950
2014-02-22 21:23:13 C 06 22 57.40 +15 40 43.1 21.9 t 950
2014-02-22 21:26:30 C 06 22 57.43 +15 40 47.8 21.8 t 950
2014-02-22 21:29:46 C 06 22 57.44 +15 40 52.6 21.6 t 950