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
2008-10-24 21:56:28 C 03 28 19.90 +19 45 00.7 c J93
2008-10-24 23:42:06 C 03 28 19.55 +19 45 53.0 r B67
2008-10-24 23:51:44 C 03 28 19.52 +19 45 57.8 r B67
2008-10-25 00:00:51 C 03 28 19.47 +19 46 02.4 r B67
2008-10-28 06:27:57 C 03 28 06.95 +20 24 49.9 o 691
2008-10-28 06:53:28 C 03 28 06.70 +20 25 02.9 o 691
2008-10-28 07:18:58 C 03 28 06.46 +20 25 16.2 o 691
2008-10-28 07:20:19 C 03 28 06.35 +20 25 16.8 16.6 c 704
2008-10-28 07:36:48 C 03 28 06.21 +20 25 25.4 16.9 c 704
2008-10-28 07:53:18 C 03 28 06.04 +20 25 34.1 16.8 c 704
2008-10-28 08:09:51 C 03 28 05.87 +20 25 42.6 17.0 c 704
2008-10-28 08:26:24 C 03 28 05.70 +20 25 51.1 16.8 c 704
2008-10-29 06:48:29 C 03 27 57.73 +20 37 17.6 r H53
2008-10-29 06:50:29 C 03 27 57.70 +20 37 18.8 r H53
2008-10-29 06:53:02 C 03 27 57.70 +20 37 20.0 r H53
2008-10-29 06:54:32 C 03 27 57.63 +20 37 20.9 r H53
2008-10-29 06:56:11 C 03 27 57.62 +20 37 21.7 r H53
2008-10-29 06:58:07 C 03 27 57.63 +20 37 22.8 r H53
2008-10-29 20:06:06 C 03 27 52.44 +20 44 07.0 r A98
2008-10-29 20:15:24 C 03 27 52.31 +20 44 12.4 r A98
2008-10-29 20:24:39 C 03 27 52.27 +20 44 17.1 r A98
2008-10-29 20:33:57 C 03 27 52.17 +20 44 21.6 r A98
2008-10-29 20:40:07 C 03 27 52.12 +20 44 24.7 r A98
2008-10-30 13:49:29 C 03 27 42.555 +20 53 35.30 L F51
2008-10-30 14:05:44 C 03 27 42.341 +20 53 43.50 L F51
2008-10-30 16:52:09 C 03 27 41.37 +20 55 09.4 r 379
2008-10-30 16:54:50 C 03 27 41.34 +20 55 11.1 r 379
2008-10-30 17:04:10 C 03 27 41.22 +20 55 16.1 r 379
2008-10-30 17:06:50 C 03 27 41.16 +20 55 17.5 r 379
2008-10-30 17:09:29 C 03 27 41.14 +20 55 18.7 r 379
2008-10-30 17:21:29 C 03 27 40.97 +20 55 25.1 r 379
2008-10-31 21:05:49 C 03 27 25.44 +21 10 12.6 c A98
2008-10-31 21:12:21 C 03 27 25.36 +21 10 16.2 c A98
2008-10-31 21:18:51 C 03 27 25.27 +21 10 20.1 c A98
2008-10-31 21:25:23 C 03 27 25.18 +21 10 23.3 c A98
2008-10-31 21:31:53 C 03 27 25.08 +21 10 27.0 c A98
2008-11-01 06:14:43 C 03 27 19.62 +21 15 16.5 16.2 c 704
2008-11-01 06:31:35 C 03 27 19.36 +21 15 25.9 16.4 c 704
2008-11-01 06:37:34 C 03 27 19.31 +21 15 29.7 o 691
2008-11-01 06:48:29 C 03 27 19.10 +21 15 35.2 16.6 c 704
2008-11-01 07:03:06 C 03 27 18.92 +21 15 43.7 o 691
2008-11-01 07:05:34 C 03 27 18.84 +21 15 44.7 16.5 c 704
2008-11-01 07:22:28 C 03 27 18.56 +21 15 54.2 16.5 c 704
2008-11-01 21:47:09 C 03 27 08.79 +21 23 44.0 r A30
2008-11-01 21:49:05 C 03 27 08.76 +21 23 45.1 r A30
2008-11-01 21:50:33 C 03 27 08.74 +21 23 45.9 r A30
2008-11-01 21:52:05 C 03 27 08.72 +21 23 46.7 r A30
2008-11-01 21:54:22 C 03 27 08.69 +21 23 48.0 r A30
2008-11-03 13:30:27 C 03 26 35.822 +21 46 05.11 L F51
2008-11-03 13:47:00 C 03 26 35.499 +21 46 14.28 L F51