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
2009-05-18 09:06:23 C 16 43 54.38 -13 45 55.4 r 448
2009-05-18 09:13:23 C 16 43 55.88 -13 45 39.2 r 448
2009-05-18 09:20:55 C 16 43 57.51 -13 45 21.4 r 448
2009-05-19 02:53:09 C 16 48 19.06 -13 04 54.4 r J75
2009-05-19 03:12:35 C 16 48 23.17 -13 04 08.9 r J75
2009-05-19 03:32:02 C 16 48 27.34 -13 03 22.6 r J75
2009-05-19 07:15:17 C 16 49 26.07 -12 54 59.2 o H55
2009-05-19 07:23:11 C 16 49 27.70 -12 54 41.1 o H55
2009-05-19 07:30:53 C 16 49 29.30 -12 54 23.3 o H55
2009-05-19 21:46:34 C 16 53 01.13 -12 22 08.2 r A13
2009-05-19 21:48:33 C 16 53 01.52 -12 22 04.7 r A13
2009-05-19 22:13:29 C 16 53 06.82 -12 21 08.4 r A13
2009-05-19 22:15:25 C 16 53 07.24 -12 21 04.5 r A13
2009-05-20 07:20:40 C 16 55 10.32 -12 00 36.1 o H55
2009-05-20 07:26:22 C 16 55 11.44 -12 00 23.1 o H55
2009-05-20 07:32:00 C 16 55 12.56 -12 00 10.4 o H55
2009-05-20 07:37:41 C 16 55 13.69 -11 59 57.9 o H55
2009-05-20 07:48:27 C 16 55 15.82 -11 59 33.9 o H55
2009-05-22 07:25:08 C 17 05 52.08 -10 16 47.7 o H55
2009-05-22 07:29:31 C 17 05 52.88 -10 16 38.6 o H55
2009-05-22 07:33:55 C 17 05 53.66 -10 16 29.1 o H55
2009-05-30 08:41:34 C 17 39 25.08 -04 38 58.4 r H45
2009-05-30 08:43:53 C 17 39 25.34 -04 38 55.1 r H45
2009-05-30 08:46:00 C 17 39 25.64 -04 38 52.1 r H45
2009-05-30 08:48:04 C 17 39 25.84 -04 38 48.8 r H45
2009-05-30 08:50:11 C 17 39 26.04 -04 38 46.0 r H45
2009-05-30 08:54:11 C 17 39 26.48 -04 38 40.8 r H45
2009-06-01 07:37:23 C 17 45 37.35 -03 37 30.3 o H55
2009-06-01 07:43:38 C 17 45 37.94 -03 37 22.9 o H55
2009-06-18 05:17:09 C 18 17 31.30 +00 44 46.4 o H55
2009-06-18 05:37:14 C 18 17 31.81 +00 44 48.8 o H55
2009-06-18 05:48:52 C 18 17 32.08 +00 44 50.4 o H55
2009-07-13 03:15:39 C 18 33 57.46 -01 32 27.4 o H55
2009-07-13 03:41:17 C 18 33 57.78 -01 32 40.0 o H55
2009-07-13 04:00:06 C 18 33 58.02 -01 32 48.9 o H55
2017-03-29 10:40:32 C 13 26 10.578 -33 08 45.69 L F51
2017-03-29 10:55:29 C 13 26 12.333 -33 08 59.22 L F51
2017-03-29 11:10:21 C 13 26 14.057 -33 09 12.45 L F51
2017-03-29 11:25:18 C 13 26 15.807 -33 09 25.80 L F51
2017-03-30 00:39:06 C 13 28 07.33 -33 20 01.7 U K92
2017-03-30 00:45:23 C 13 28 08.10 -33 20 06.7 U K92
2017-03-30 00:51:40 C 13 28 08.86 -33 20 11.9 U K92
2017-03-30 04:27:11 C 13 28 43.29 -33 23 22.4 u 807
2017-03-30 04:29:47 C 13 28 43.61 -33 23 24.7 u 807
2017-03-30 04:32:44 C 13 28 43.97 -33 23 27.3 u 807
2017-03-30 11:28:04 C 13 29 42.759 -33 30 24.17 U 568
2017-03-30 11:29:29 C 13 29 42.934 -33 30 25.33 U 568
2017-03-30 11:30:54 C 13 29 43.108 -33 30 26.58 U 568
2025-03-23 09:12:12 C 15 57 48.320 -33 58 36.10 V 807
2025-03-23 09:20:22 C 15 57 50.260 -33 58 38.10 V 807