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
2009-02-21 07:12:06 C 11 22 12.86 +27 52 15.9 r 703
2009-02-21 07:20:52 C 11 22 13.98 +27 52 42.8 r 703
2009-02-21 07:29:40 C 11 22 14.98 +27 53 09.6 r 703
2009-02-21 07:39:27 C 11 22 16.24 +27 53 40.2 r 703
2009-02-21 08:11:43 C 11 22 20.20 +27 55 15.3 r 703
2009-02-21 08:15:50 C 11 22 20.78 +27 55 27.4 r 703
2009-02-21 08:19:58 C 11 22 21.21 +27 55 41.3 r 703
2009-02-21 08:24:06 C 11 22 22.08 +27 55 53.6 r 703
2009-02-21 09:03:31 C 11 22 26.61 +27 57 51.2 r 703
2009-02-21 09:04:46 C 11 22 26.83 +27 57 56.6 r 703
2009-02-21 09:05:30 C 11 22 26.84 +27 57 57.6 v H01
2009-02-21 09:06:08 C 11 22 27.04 +27 58 00.6 r 703
2009-02-21 09:07:31 C 11 22 27.15 +27 58 04.3 r 703
2009-02-21 09:09:12 C 11 22 27.33 +27 58 09.2 r 703
2009-02-21 09:10:35 C 11 22 27.58 +27 58 13.2 r 703
2009-02-21 09:11:57 C 11 22 27.66 +27 58 17.7 r 703
2009-02-21 09:13:22 C 11 22 27.87 +27 58 22.0 r 703
2009-02-21 09:14:35 C 11 22 27.95 +27 58 24.5 v H01
2009-02-21 09:20:42 C 11 22 28.72 +27 58 42.4 v H01
2009-02-21 09:31:01 C 11 22 30.00 +27 59 13.6 v H01
2009-02-21 10:53:35 C 11 22 40.22 +28 03 23.0 r 703
2009-02-21 10:54:58 C 11 22 40.36 +28 03 24.9 r 703
2009-02-21 10:56:20 C 11 22 40.76 +28 03 30.0 r 703
2009-02-21 10:57:43 C 11 22 40.90 +28 03 33.7 r 703
2009-02-21 21:14:26 C 11 24 05.05 +28 34 27.5 r B33
2009-02-21 21:21:02 C 11 24 05.84 +28 34 47.4 r B33
2009-02-21 21:30:46 C 11 24 07.14 +28 35 17.8 r B33
2009-02-21 21:35:18 C 11 24 07.75 +28 35 26.3 r J95
2009-02-21 21:56:22 C 11 24 10.49 +28 36 30.6 r J95
2009-02-21 22:08:36 C 11 24 12.09 +28 37 07.4 r J95
2009-02-22 07:06:02 C 11 25 23.70 +29 04 17.6 r 703
2009-02-22 07:13:59 C 11 25 24.74 +29 04 42.3 r 703
2009-02-22 07:21:50 C 11 25 25.86 +29 05 05.3 r 703
2009-02-22 07:29:46 C 11 25 26.76 +29 05 28.9 r 703
2009-02-23 09:26:42 C 11 28 56.81 +30 23 21.3 o H55
2009-02-23 09:29:19 C 11 28 57.15 +30 23 29.1 o H55
2009-02-23 09:35:22 C 11 28 57.94 +30 23 47.1 o H55
2009-03-03 08:03:22 C 11 57 00.82 +39 23 22.3 o H55
2009-03-03 08:17:28 C 11 57 02.89 +39 23 58.9 o H55
2009-03-03 08:25:03 C 11 57 04.00 +39 24 18.4 o H55
2009-03-15 05:59:53 C 12 43 41.18 +49 17 16.9 o H55
2009-03-15 06:12:25 C 12 43 43.11 +49 17 36.1 o H55
2009-03-15 06:25:17 C 12 43 45.13 +49 17 56.1 o H55
2009-04-04 07:49:29 C 13 51 41.79 +54 58 39.5 o H55
2009-04-04 08:06:13 C 13 51 43.34 +54 58 39.6 o H55
2009-04-04 08:22:57 C 13 51 45.07 +54 58 39.6 o H55
2009-04-16 06:02:43 C 14 16 50.80 +53 53 08.1 o H55
2009-04-16 06:16:07 C 14 16 51.63 +53 53 01.7 o H55
2009-04-16 06:29:40 C 14 16 52.45 +53 52 55.5 o H55
2009-05-15 03:27:46 C 14 45 48.11 +43 48 11.4 o H55