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
2008-11-27 01:09:27 C 03 12 08.56 +28 05 54.3 c A24
2008-12-03 14:33:01 C 03 08 06.82 +30 07 42.9 m 355
2008-12-03 14:33:38 C 03 08 06.79 +30 07 43.4 m 355
2008-12-03 14:34:15 C 03 08 06.79 +30 07 44.1 m 355
2008-12-03 14:34:52 C 03 08 06.77 +30 07 44.4 m 355
2008-12-03 20:14:47 C 03 08 00.75 +30 12 07.3 v 434
2008-12-03 20:17:05 C 03 08 00.69 +30 12 09.2 v 434
2008-12-03 20:18:49 C 03 08 00.64 +30 12 10.5 v 434
2008-12-03 20:22:57 C 03 08 00.53 +30 12 13.9 v 434
2008-12-03 20:25:57 C 03 08 00.46 +30 12 16.3 v 434
2008-12-03 20:28:16 C 03 08 00.39 +30 12 18.1 v 434
2008-12-04 04:26:39 C 03 07 50.59 +30 18 39.1 15.0 c 704
2008-12-04 04:44:54 C 03 07 50.08 +30 18 53.5 15.3 c 704
2008-12-04 05:03:08 C 03 07 49.60 +30 19 07.9 15.2 c 704
2008-12-04 05:21:24 C 03 07 49.09 +30 19 22.3 15.2 c 704
2008-12-04 05:39:40 C 03 07 48.60 +30 19 36.9 15.3 c 704
2008-12-06 18:46:18 C 03 06 44.98 +31 07 40.5 r 130
2008-12-06 18:47:28 C 03 06 44.96 +31 07 41.5 r 130
2008-12-06 18:49:02 C 03 06 44.94 +31 07 42.8 r 130
2008-12-06 18:50:36 C 03 06 44.89 +31 07 44.1 r 130
2008-12-07 04:46:15 C 03 06 35.48 +31 15 43.1 14.6 c 704
2008-12-07 05:04:45 C 03 06 35.09 +31 15 57.5 15.0 c 704
2008-12-07 05:23:07 C 03 06 34.71 +31 16 12.1 14.8 c 704
2008-12-07 05:41:32 C 03 06 34.30 +31 16 26.6 14.8 c 704
2008-12-07 06:00:08 C 03 06 33.90 +31 16 41.2 14.9 c 704
2008-12-07 22:30:25 C 03 06 20.77 +31 29 40.4 c A24
2008-12-07 22:31:51 C 03 06 20.75 +31 29 41.4 c A24
2008-12-07 22:56:59 C 03 06 20.29 +31 30 01.0 c A24
2008-12-07 23:23:34 C 03 06 19.82 +31 30 21.4 c A24
2008-12-07 23:37:29 C 03 06 19.57 +31 30 32.1 r 203
2008-12-07 23:48:42 C 03 06 19.36 +31 30 40.9 c A24
2008-12-07 23:50:09 C 03 06 19.34 +31 30 42.0 c A24
2008-12-08 00:03:28 C 03 06 19.12 +31 30 51.9 r 203
2008-12-08 22:10:45 C 03 06 04.88 +31 48 26.8 r 203
2008-12-08 23:22:29 C 03 06 03.75 +31 49 22.5 r 203
2008-12-11 04:55:25 C 03 05 42.17 +32 31 58.9 o G58
2008-12-11 05:00:36 C 03 05 42.11 +32 32 03.1 o G58
2008-12-11 05:05:41 C 03 05 42.06 +32 32 07.2 o G58
2008-12-11 05:10:48 C 03 05 41.99 +32 32 11.2 o G58
2008-12-13 21:04:13 C 03 05 39.59 +33 22 50.5 14.5 o C20
2008-12-13 21:06:19 C 03 05 39.59 +33 22 52.0 14.5 o C20
2008-12-14 21:34:04 C 03 05 47.02 +33 42 13.9 15.3 o C20
2008-12-14 21:36:11 C 03 05 46.97 +33 42 15.9 15.3 r C20
2008-12-15 11:40:45 C 03 05 54.98 +33 53 30.8 r 379
2008-12-15 11:43:26 C 03 05 54.97 +33 53 32.7 r 379
2008-12-15 11:46:06 C 03 05 54.97 +33 53 34.8 r 379
2008-12-15 11:51:48 C 03 05 54.99 +33 53 39.6 r 379
2008-12-15 11:54:28 C 03 05 54.97 +33 53 41.6 r 379
2008-12-15 11:57:08 C 03 05 54.98 +33 53 43.6 r 379
2008-12-17 21:01:10 C 03 06 37.13 +34 38 35.5 14.7 r C20