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
2009-02-20 15:10:09 C 10 23 22.02 -31 42 28.2 r E12
2009-02-20 15:28:48 C 10 23 25.90 -31 39 54.1 r E12
2009-02-20 15:47:24 C 10 23 29.83 -31 37 20.4 r E12
2009-02-20 16:07:09 C 10 23 33.95 -31 34 36.3 r E12
2009-02-20 16:07:45 C 10 23 34.08 -31 34 31.6 r E12
2009-02-20 18:10:54 C 10 24 00.32 -31 17 25.0 r E12
2009-02-20 18:11:31 C 10 24 00.46 -31 17 19.7 r E12
2009-02-20 18:12:05 C 10 24 00.61 -31 17 14.6 r E12
2009-02-20 18:12:42 C 10 24 00.75 -31 17 09.9 r E12
2009-02-20 18:13:20 C 10 24 00.86 -31 17 04.5 r E12
2009-02-20 18:34:34 C 10 24 05.58 -31 14 06.9 r E12
2009-02-20 18:35:09 C 10 24 05.68 -31 14 02.0 r E12
2009-02-20 22:35:24 C 10 25 07.05 -30 42 43.1 o B04
2009-02-20 22:39:25 C 10 25 07.91 -30 42 08.9 o B04
2009-02-20 23:06:48 C 10 25 13.63 -30 38 22.6 o B04
2009-02-21 01:46:54 C 10 25 51.29 -30 15 14.9 r I77
2009-02-21 01:52:35 C 10 25 52.44 -30 14 27.8 r I77
2009-02-21 01:58:16 C 10 25 53.51 -30 13 40.8 r I77
2009-02-21 05:26:38 C 10 26 41.34 -29 45 54.2 c 854
2009-02-21 05:31:28 C 10 26 42.36 -29 45 14.0 c 854
2009-02-21 05:36:18 C 10 26 43.23 -29 44 33.6 c 854
2009-02-21 06:18:03 C 10 26 51.33 -29 38 54.7 v H01
2009-02-21 06:23:14 C 10 26 52.37 -29 38 12.0 v H01
2009-02-21 06:28:36 C 10 26 53.44 -29 37 27.9 v H01
2009-02-21 06:35:12 C 10 26 54.75 -29 36 33.8 v H01
2009-02-21 14:03:45 C 10 28 32.52 -28 33 25.6 r E12
2009-02-21 14:16:15 C 10 28 34.93 -28 31 42.0 r E12
2009-02-21 14:28:45 C 10 28 37.34 -28 29 58.6 r E12
2009-02-22 13:45:52 C 10 33 31.06 -25 17 08.6 r E12
2009-02-22 14:02:31 C 10 33 34.05 -25 14 50.8 r E12
2009-02-22 14:19:12 C 10 33 37.04 -25 12 33.6 r E12
2009-02-22 14:35:51 C 10 33 40.03 -25 10 15.9 r E12
2009-02-23 07:40:06 C 10 37 00.09 -22 50 56.0 o H55
2009-02-23 07:41:56 C 10 37 00.40 -22 50 40.9 o H55
2009-02-23 07:44:01 C 10 37 00.77 -22 50 23.6 o H55
2009-02-23 07:46:06 C 10 37 01.12 -22 50 06.3 o H55
2009-02-24 01:42:10 C 10 40 21.82 -20 23 42.8 v 204
2009-02-24 01:47:36 C 10 40 22.69 -20 22 58.4 v 204
2009-02-24 01:52:33 C 10 40 23.53 -20 22 18.0 v 204
2009-02-24 04:39:51 C 10 40 57.68 -19 59 39.3 o H55
2009-02-24 04:47:36 C 10 40 58.94 -19 58 36.3 o H55
2009-02-24 04:56:17 C 10 41 00.36 -19 57 26.5 o H55
2009-02-24 06:05:16 C 10 41 13.30 -19 48 01.7 r 703
2009-02-24 06:05:59 C 10 41 13.41 -19 47 56.3 r 703
2009-02-24 06:06:41 C 10 41 13.52 -19 47 50.1 r 703
2009-02-24 06:07:24 C 10 41 13.66 -19 47 44.0 r 703
2009-02-25 03:34:55 C 10 44 56.69 -16 54 39.3 r I20
2009-02-25 03:46:19 C 10 44 58.38 -16 53 09.1 r I20
2009-02-25 03:58:38 C 10 45 00.22 -16 51 32.0 r I20
2009-02-25 04:10:18 C 10 45 01.96 -16 49 59.5 r I20