2009 HG

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2226332490 ± 1.36e-08
Semi-major axis (a)1.3651659806 AU ± 5.62e-09
Inclination (i)3.63985409° ± 2.25e-06
Long. of Asc. Node (Ω)230.93850963° ± 9.87e-06
Arg. of Perihelion (ω)356.76384668° ± 2.41e-05
Mean Anomaly (M)126.81226013° ± 1.78e-05
Mean Motion (n)0.6179226153°/day ± 3.82e-09
Perihelion dist (q)1.06123464 AU ± 1.90e-08
Aphelion dist (Q)1.66909732 AU ± 1.98e-08
Orbital Period1.59506427 yr ± 9.85e-09
NGA Modelr2
A2-1.70498902e-13 ± 1.53e-14 AU/d²
Physical Parameters
H (abs. magnitude)24.34
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.304″
Uncertainty0
Orbit TypeAmor
MOID0.050780 AU
Observations Used100
Oppositions6
Arc Total2009-2025
First Observation Used2009-04-17
Last Observation Used2025-03-23
Observations (101)
Date Type RA Dec Mag Band Observatory
2009-04-17 16:03:04 C 13 12 13.32 -31 13 43.0 r E12
2009-04-17 16:23:12 C 13 12 16.56 -31 13 40.8 r E12
2009-04-17 16:43:06 C 13 12 19.90 -31 13 37.2 r E12
2009-04-17 17:03:02 C 13 12 23.22 -31 13 33.9 r E12
2009-04-17 17:51:50 C 13 12 31.69 -31 13 25.3 r E12
2009-04-17 18:01:36 C 13 12 33.39 -31 13 23.7 r E12
2009-04-18 04:58:36 C 13 14 48.59 -31 15 49.5 r H55
2009-04-18 05:05:10 C 13 14 52.64 -31 15 36.9 c 651
2009-04-18 05:05:26 C 13 14 49.63 -31 15 49.3 r H55
2009-04-18 05:08:23 C 13 14 50.17 -31 15 49.3 r H55
2009-04-18 05:12:14 C 13 14 53.86 -31 15 38.3 c 651
2009-04-18 05:18:38 C 13 14 54.97 -31 15 38.3 c 651
2009-04-18 13:31:36 C 13 16 30.30 -31 13 34.8 r D90
2009-04-18 13:35:33 C 13 16 30.96 -31 13 34.6 r D90
2009-04-18 13:43:26 C 13 16 32.24 -31 13 34.6 r D90
2009-04-18 14:16:22 C 13 16 36.42 -31 13 39.0 r E12
2009-04-18 14:32:37 C 13 16 39.09 -31 13 37.6 r E12
2009-04-21 14:45:14 C 13 32 08.24 -31 02 48.2 r E12
2009-04-21 14:56:30 C 13 32 10.43 -31 02 44.2 r E12
2009-04-22 10:44:16 C 13 36 54.39 -30 56 15.1 o 474
2009-04-22 10:45:45 C 13 36 54.72 -30 56 14.7 o 474
2009-04-22 10:46:56 C 13 36 54.97 -30 56 14.3 o 474
2009-04-22 10:48:36 C 13 36 55.30 -30 56 14.1 o 474
2009-04-25 12:37:11 C 13 55 40.92 -30 20 55.8 r E12
2009-04-25 12:51:12 C 13 55 44.18 -30 20 47.4 r E12
2009-04-29 15:12:04 C 14 24 02.56 -28 54 42.5 r E12
2009-04-29 15:26:12 C 14 24 06.29 -28 54 24.8 r E12
2009-04-29 15:40:20 C 14 24 10.06 -28 54 07.5 r E12
2009-04-29 15:54:29 C 14 24 13.83 -28 53 49.8 r E12
2009-05-03 11:02:10 C 14 53 23.94 -26 49 04.8 o 474
2009-05-03 11:03:00 C 14 53 24.19 -26 49 03.5 o 474
2009-05-03 11:04:10 C 14 53 24.52 -26 49 01.7 o 474
2009-05-12 07:31:02 C 16 02 44.53 -19 35 08.6 o H55
2009-05-12 07:34:05 C 16 02 45.38 -19 35 01.2 o H55
2009-05-12 07:44:38 C 16 02 48.24 -19 34 35.9 o H55
2009-05-15 07:33:20 C 16 24 08.78 -16 41 32.5 o H55
2009-05-15 07:37:43 C 16 24 09.86 -16 41 21.8 o H55
2009-05-15 07:42:06 C 16 24 10.94 -16 41 10.9 o H55
2009-05-17 07:20:52 C 16 37 15.68 -14 46 48.6 o H55
2009-05-17 07:23:10 C 16 37 16.19 -14 46 43.3 o H55
2009-05-17 07:25:18 C 16 37 16.66 -14 46 37.5 o H55
2009-05-17 07:27:25 C 16 37 17.17 -14 46 32.6 o H55
2009-05-17 07:29:21 C 16 37 17.62 -14 46 27.8 o H55
2009-05-17 07:31:18 C 16 37 18.08 -14 46 23.3 o H55
2009-05-18 07:55:32 C 16 43 36.54 -13 48 53.7 o H55
2009-05-18 08:00:14 C 16 43 37.51 -13 48 42.6 o H55
2009-05-18 08:04:43 C 16 43 38.48 -13 48 32.1 o H55
2009-05-18 08:09:06 C 16 43 39.46 -13 48 21.3 o H55
2009-05-18 08:13:30 C 16 43 40.42 -13 48 10.9 o H55
2009-05-18 08:17:26 C 16 43 41.28 -13 48 01.6 o H55