2009 DQ4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3854582771 ± 1.95e-07
Semi-major axis (a)1.5672093364 AU ± 3.96e-08
Inclination (i)16.87549723° ± 1.76e-05
Long. of Asc. Node (Ω)165.07018022° ± 5.62e-06
Arg. of Perihelion (ω)297.89880978° ± 5.25e-05
Mean Anomaly (M)215.08570470° ± 1.30e-04
Mean Motion (n)0.5023677606°/day ± 1.90e-08
Perihelion dist (q)0.96311553 AU ± 3.06e-07
Aphelion dist (Q)2.17130315 AU ± 3.10e-07
Orbital Period1.96196166 yr ± 7.43e-08
Physical Parameters
H (abs. magnitude)21.22
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.405″
Uncertainty0
Orbit TypeApollo
MOID0.101611 AU
Observations Used151
Oppositions3
Arc Total2009-2015
First Observation Used2009-02-20
Last Observation Used2015-04-24
Observations (160)
Date Type RA Dec Mag Band Observatory
2010-11-21 00:29:24 S 07 15 33.583 -59 05 53.38 L C51
2010-11-21 21:07:19 S 07 21 33.163 -59 26 21.44 L C51
2011-01-29 12:20:49 S 13 48 55.226 -34 41 03.05 L C51
2011-01-29 23:27:11 S 13 50 08.069 -34 17 55.46 L C51
2011-03-10 10:43:06 C 14 30 04.32 +02 55 52.3 o 291
2011-03-10 10:51:24 C 14 30 04.08 +02 56 12.2 o 291
2011-03-10 10:59:49 C 14 30 03.81 +02 56 30.1 o 291
2015-04-24 07:26:43 C 15 46 53.56 +14 28 00.7 u H21
2015-04-24 07:51:50 C 15 46 51.90 +14 28 18.6 u H21
2015-04-24 08:19:04 C 15 46 50.08 +14 28 35.3 u H21