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
2008-12-17 21:03:16 C 03 06 37.17 +34 38 36.5 14.7 r C20
2008-12-18 13:08:16 C 03 06 54.94 +34 51 20.3 r 379
2008-12-18 13:10:05 C 03 06 54.96 +34 51 21.8 r 379
2008-12-18 13:11:55 C 03 06 54.96 +34 51 23.0 r 379
2008-12-18 13:16:01 C 03 06 55.02 +34 51 26.0 r 379
2008-12-18 13:17:51 C 03 06 55.03 +34 51 27.3 r 379
2008-12-18 21:39:53 C 03 07 04.25 +34 57 52.5 14.8 r C20
2008-12-18 21:42:00 C 03 07 04.23 +34 57 54.4 14.8 r C20
2008-12-19 22:12:46 C 03 07 36.79 +35 17 00.4 15.0 r C20
2008-12-19 22:14:53 C 03 07 36.84 +35 17 01.9 15.0 r C20
2008-12-20 17:57:38 C 03 08 09.43 +35 32 23.8 c A94
2008-12-20 18:03:00 C 03 08 09.55 +35 32 28.2 c A94
2008-12-20 18:08:21 C 03 08 09.65 +35 32 32.4 c A94
2008-12-20 21:31:50 C 03 08 13.18 +35 35 09.2 15.2 o C20
2008-12-20 21:33:57 C 03 08 13.23 +35 35 10.7 15.2 o C20
2008-12-20 21:38:44 C 03 08 14.16 +35 35 16.8 c A24
2008-12-20 21:40:09 C 03 08 14.17 +35 35 17.9 c A24
2008-12-20 22:00:21 C 03 08 14.62 +35 35 33.0 c A24
2008-12-20 22:21:57 C 03 08 15.07 +35 35 49.3 c A24
2008-12-20 22:42:07 C 03 08 15.51 +35 36 04.6 c A24
2008-12-20 22:43:33 C 03 08 15.55 +35 36 05.6 c A24
2008-12-21 18:55:59 C 03 08 53.07 +35 51 44.7 w A06
2008-12-21 19:13:29 C 03 08 53.51 +35 51 58.7 w A06
2008-12-21 19:25:40 C 03 08 53.81 +35 52 08.3 w A06
2008-12-23 19:43:33 C 03 10 35.92 +36 29 10.7 r J75
2008-12-23 20:02:55 C 03 10 36.55 +36 29 25.8 r J75
2008-12-23 20:22:05 C 03 10 37.15 +36 29 40.7 r J75
2008-12-26 18:30:21 C 03 13 48.76 +37 22 23.1 c B67
2008-12-26 20:19:32 C 03 13 53.67 +37 23 45.4 c B67
2008-12-26 20:45:36 C 03 13 54.90 +37 24 02.7 c 127
2008-12-26 20:53:49 C 03 13 55.27 +37 24 08.7 c 127
2008-12-26 20:58:50 C 03 13 55.50 +37 24 12.4 c 127
2008-12-26 21:04:39 C 03 13 55.77 +37 24 16.9 c 127
2008-12-28 19:05:38 C 03 16 31.77 +37 58 07.3 c 127
2008-12-28 19:10:54 C 03 16 32.05 +37 58 11.3 c 127
2008-12-28 19:22:03 C 03 16 32.67 +37 58 19.2 c 127
2008-12-28 19:27:13 C 03 16 32.93 +37 58 23.2 c 127
2008-12-29 00:30:17 C 03 16 52.11 +38 02 07.7 r H53
2008-12-29 00:33:08 C 03 16 52.28 +38 02 10.2 r H53
2008-12-29 00:36:11 C 03 16 52.43 +38 02 12.4 r H53
2008-12-29 00:39:09 C 03 16 52.61 +38 02 14.7 r H53
2008-12-29 00:42:09 C 03 16 52.77 +38 02 16.9 r H53
2008-12-29 00:45:10 C 03 16 52.94 +38 02 19.1 r H53
2008-12-29 18:49:14 C 03 18 00.95 +38 15 20.3 w 160
2008-12-29 18:52:37 C 03 18 01.12 +38 15 23.4 w 160
2008-12-29 18:55:15 C 03 18 01.31 +38 15 26.2 w 160
2008-12-29 22:15:59 C 03 18 13.00 +38 17 48.9 w 160
2008-12-29 22:18:21 C 03 18 13.03 +38 17 50.6 w 160
2008-12-29 22:21:30 C 03 18 13.27 +38 17 52.4 w 160
2008-12-30 02:51:50 C 03 18 32.00 +38 21 11.7 r H53