162900 (2001 HG31)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5356275917 ± 1.39e-08
Semi-major axis (a)2.5762499943 AU ± 7.82e-09
Inclination (i)6.15830412° ± 1.96e-06
Long. of Asc. Node (Ω)36.49521184° ± 1.24e-05
Arg. of Perihelion (ω)67.43077182° ± 1.31e-05
Mean Anomaly (M)21.59379751° ± 7.64e-06
Mean Motion (n)0.2383582951°/day ± 1.08e-09
Perihelion dist (q)1.19633941 AU ± 3.60e-08
Aphelion dist (Q)3.95616057 AU ± 3.78e-08
Orbital Period4.13506181 yr ± 1.88e-08
Physical Parameters
H (abs. magnitude)15.98
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.328″
Uncertainty0
Orbit TypeAmor
MOID0.237643 AU
Observations Used1231
Oppositions18
Arc Total2001-2025
First Observation Used2001-02-22
Last Observation Used2025-12-30
Observations (1309)
Date Type RA Dec Mag Band Observatory
2008-11-17 21:24:29 C 03 18 45.51 +25 24 55.8 r B75
2008-11-17 21:26:33 C 03 18 45.45 +25 24 57.4 r B75
2008-11-17 21:28:35 C 03 18 45.37 +25 24 58.9 r B75
2008-11-17 21:30:38 C 03 18 45.30 +25 25 00.2 r B75
2008-11-17 21:32:42 C 03 18 45.23 +25 25 01.9 r B75
2008-11-17 21:34:44 C 03 18 45.17 +25 25 03.3 r B75
2008-11-17 21:36:48 C 03 18 45.10 +25 25 04.2 r B75
2008-11-17 21:38:51 C 03 18 45.04 +25 25 05.7 r B75
2008-11-17 21:40:53 C 03 18 44.94 +25 25 08.0 r B75
2008-11-17 21:42:57 C 03 18 44.88 +25 25 09.0 r B75
2008-11-17 21:45:00 C 03 18 44.79 +25 25 10.1 r B75
2008-11-17 21:47:01 C 03 18 44.73 +25 25 11.8 r B75
2008-11-17 21:49:05 C 03 18 44.66 +25 25 13.2 r B75
2008-11-17 21:51:08 C 03 18 44.58 +25 25 14.9 r B75
2008-11-17 21:53:11 C 03 18 44.53 +25 25 16.1 r B75
2008-11-17 21:55:15 C 03 18 44.48 +25 25 17.4 r B75
2008-11-17 21:57:17 C 03 18 44.40 +25 25 19.1 r B75
2008-11-17 21:59:21 C 03 18 44.33 +25 25 21.0 r B75
2008-11-17 22:01:24 C 03 18 44.27 +25 25 22.1 r B75
2008-11-17 22:03:26 C 03 18 44.20 +25 25 23.5 r B75
2008-11-17 22:05:30 C 03 18 44.14 +25 25 25.0 r B75
2008-11-17 22:07:33 C 03 18 44.07 +25 25 27.0 r B75
2008-11-17 22:09:35 C 03 18 43.98 +25 25 27.8 r B75
2008-11-18 00:38:58 C 03 18 39.35 +25 27 19.2 r J51
2008-11-18 00:44:50 C 03 18 39.14 +25 27 23.4 r J51
2008-11-18 00:50:42 C 03 18 38.94 +25 27 27.5 r J51
2008-11-18 03:40:48 C 03 18 35.06 +25 29 22.8 r 703
2008-11-18 03:51:12 C 03 18 34.74 +25 29 30.3 r 703
2008-11-18 04:01:38 C 03 18 34.38 +25 29 37.9 r 703
2008-11-18 04:11:59 C 03 18 34.02 +25 29 45.4 r 703
2008-11-18 19:10:03 C 03 18 07.15 +25 40 12.1 r A98
2008-11-18 19:14:13 C 03 18 07.01 +25 40 15.2 r A98
2008-11-18 19:18:25 C 03 18 06.88 +25 40 17.9 r A98
2008-11-18 19:22:35 C 03 18 06.73 +25 40 21.2 r A98
2008-11-18 19:26:47 C 03 18 06.58 +25 40 24.1 r A98
2008-11-18 19:30:58 C 03 18 06.45 +25 40 27.1 r A98
2008-11-18 19:37:14 C 03 18 06.25 +25 40 31.7 r A98
2008-11-18 23:25:39 C 03 17 58.85 +25 43 17.1 t B75
2008-11-18 23:28:14 C 03 17 58.77 +25 43 18.9 t B75
2008-11-18 23:30:46 C 03 17 58.67 +25 43 20.8 t B75
2008-11-18 23:33:19 C 03 17 58.58 +25 43 22.6 t B75
2008-11-18 23:37:52 C 03 17 58.43 +25 43 25.8 t B75
2008-11-19 18:50:35 C 03 17 25.20 +25 57 04.5 v A78
2008-11-19 18:53:40 C 03 17 25.12 +25 57 07.6 v A78
2008-11-19 18:57:48 C 03 17 24.99 +25 57 09.5 v A78
2008-11-19 19:00:19 C 03 17 24.93 +25 57 11.7 v A78
2008-11-19 19:54:25 C 03 17 23.09 +25 57 51.4 c 434
2008-11-19 19:55:43 C 03 17 23.05 +25 57 52.4 c 434
2008-11-19 19:56:40 C 03 17 23.02 +25 57 53.0 c 434
2008-11-19 19:57:31 C 03 17 22.99 +25 57 53.7 c 434