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
2008-11-19 22:44:11 C 03 17 17.19 +25 59 54.4 t B75
2008-11-19 22:48:18 C 03 17 17.07 +25 59 57.4 t B75
2008-11-19 22:53:47 C 03 17 16.89 +26 00 01.2 t B75
2008-11-20 23:26:18 C 03 16 32.16 +26 17 41.7 c A24
2008-11-20 23:27:25 C 03 16 32.12 +26 17 42.6 c A24
2008-11-21 06:04:30 C 03 16 20.37 +26 22 35.1 15.1 c 704
2008-11-21 06:05:38 C 03 16 20.38 +26 22 36.1 15.2 c 704
2008-11-21 06:22:44 C 03 16 19.74 +26 22 48.6 15.3 c 704
2008-11-21 06:24:17 C 03 16 19.70 +26 22 49.5 15.4 c 704
2008-11-21 06:40:48 C 03 16 19.07 +26 23 01.8 15.3 c 704
2008-11-21 06:43:18 C 03 16 18.99 +26 23 03.4 15.3 c 704
2008-11-21 06:58:57 C 03 16 18.42 +26 23 14.8 15.3 c 704
2008-11-21 07:02:00 C 03 16 18.32 +26 23 16.9 15.5 c 704
2008-11-21 07:17:34 C 03 16 17.69 +26 23 27.6 15.5 c 704
2008-11-21 07:20:42 C 03 16 17.63 +26 23 30.2 15.3 c 704
2008-11-21 07:41:10 C 03 16 16.86 +26 23 45.3 14.9 c 704
2008-11-21 07:59:15 C 03 16 16.20 +26 23 58.2 14.9 c 704
2008-11-21 08:17:45 C 03 16 15.54 +26 24 11.2 14.9 c 704
2008-11-21 08:35:55 C 03 16 14.88 +26 24 24.1 15.1 c 704
2008-11-21 08:54:03 C 03 16 14.24 +26 24 36.9 15.1 c 704
2008-11-21 21:11:23 C 03 15 52.75 +26 33 25.0 15.2 r 084
2008-11-21 21:14:36 C 03 15 52.64 +26 33 27.5 15.2 r 084
2008-11-22 02:05:13 C 03 15 45.11 +26 37 05.0 15.2 c 704
2008-11-22 02:43:13 C 03 15 43.80 +26 37 35.3 15.5 c 704
2008-11-22 03:02:13 C 03 15 43.14 +26 37 49.2 15.3 c 704
2008-11-22 03:21:13 C 03 15 42.47 +26 38 03.5 15.3 c 704
2008-11-22 05:10:07 C 03 15 38.17 +26 39 23.6 r H53
2008-11-22 05:15:08 C 03 15 37.98 +26 39 27.0 r H53
2008-11-22 05:20:09 C 03 15 37.79 +26 39 31.0 r H53
2008-11-22 05:25:09 C 03 15 37.61 +26 39 34.6 r H53
2008-11-22 05:30:13 C 03 15 37.44 +26 39 38.3 r H53
2008-11-22 05:35:09 C 03 15 37.24 +26 39 41.7 r H53
2008-11-25 18:31:35 C 03 13 04.50 +27 42 38.8 o J93
2008-11-25 18:34:38 C 03 13 04.39 +27 42 43.2 o J93
2008-11-25 18:37:41 C 03 13 04.26 +27 42 44.4 o J93
2008-11-25 19:48:45 C 03 13 01.90 +27 43 42.1 r A13
2008-11-25 20:21:49 C 03 13 00.74 +27 44 07.9 r A13
2008-11-25 23:36:36 C 03 12 53.89 +27 46 35.6 c A24
2008-11-25 23:49:10 C 03 12 53.46 +27 46 44.9 c A24
2008-11-26 00:03:55 C 03 12 52.96 +27 46 55.8 r B75
2008-11-26 00:06:46 C 03 12 52.86 +27 46 57.9 r B75
2008-11-26 00:12:34 C 03 12 52.66 +27 47 02.0 r B75
2008-11-26 23:40:22 C 03 12 11.56 +28 04 48.3 r B75
2008-11-26 23:43:28 C 03 12 11.44 +28 04 50.5 r B75
2008-11-26 23:48:28 C 03 12 11.28 +28 04 54.2 r B75
2008-11-27 00:03:52 C 03 12 10.76 +28 05 05.8 c A24
2008-11-27 00:04:58 C 03 12 10.72 +28 05 06.6 c A24
2008-11-27 00:25:43 C 03 12 10.02 +28 05 21.9 c A24
2008-11-27 00:47:35 C 03 12 09.29 +28 05 38.2 c A24
2008-11-27 01:08:21 C 03 12 08.59 +28 05 53.5 c A24