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
2008-12-30 02:55:54 C 03 18 32.24 +38 21 14.6 r H53
2008-12-30 02:59:54 C 03 18 32.46 +38 21 17.4 r H53
2008-12-30 03:03:55 C 03 18 32.69 +38 21 20.2 r H53
2008-12-30 03:07:56 C 03 18 32.92 +38 21 23.0 r H53
2008-12-30 03:11:55 C 03 18 33.16 +38 21 26.1 r H53
2009-01-02 21:33:33 C 03 25 19.20 +39 24 38.5 r J51
2009-01-02 21:41:49 C 03 25 19.82 +39 24 44.1 r J51
2009-01-02 21:50:05 C 03 25 20.43 +39 24 49.6 r J51
2009-01-03 00:27:32 C 03 25 32.48 +39 26 20.9 o J93
2009-01-03 00:30:36 C 03 25 32.68 +39 26 22.8 o J93
2009-01-03 00:33:39 C 03 25 32.95 +39 26 24.4 o J93
2009-01-03 01:08:55 C 03 25 37.82 +39 26 59.2 r H53
2009-01-03 01:12:08 C 03 25 38.09 +39 27 01.7 r H53
2009-01-03 01:15:09 C 03 25 38.32 +39 27 03.6 r H53
2009-01-03 01:18:08 C 03 25 38.52 +39 27 05.7 r H53
2009-01-03 01:21:08 C 03 25 38.77 +39 27 07.7 r H53
2009-01-03 01:24:09 C 03 25 38.99 +39 27 09.5 r H53
2009-01-07 17:38:43 C 03 36 16.14 +40 39 33.3 15.6 r 084
2009-01-07 22:56:02 C 03 36 48.32 +40 42 42.0 15.3 r 084
2009-01-08 03:29:33 C 03 37 17.72 +40 45 18.3 15.0 r 084
2009-01-08 03:32:47 C 03 37 18.09 +40 45 20.8 14.8 r 084
2009-01-09 01:29:16 C 03 39 42.85 +40 58 53.9 r H53
2009-01-09 01:32:17 C 03 39 43.15 +40 58 55.4 r H53
2009-01-09 01:35:17 C 03 39 43.44 +40 58 57.6 r H53
2009-01-09 01:39:10 C 03 39 43.89 +40 58 59.9 r H53
2009-01-09 01:42:10 C 03 39 44.18 +40 59 01.4 r H53
2009-01-09 01:45:09 C 03 39 44.45 +40 59 03.6 r H53
2009-01-14 03:02:47 C 03 54 30.47 +42 04 57.7 r H53
2009-01-14 03:05:48 C 03 54 30.83 +42 04 59.2 r H53
2009-01-14 03:08:47 C 03 54 31.21 +42 05 00.4 r H53
2009-01-14 03:11:47 C 03 54 31.59 +42 05 02.1 r H53
2009-01-14 03:14:48 C 03 54 31.96 +42 05 03.9 r H53
2009-01-14 03:17:47 C 03 54 32.39 +42 05 05.4 r H53
2009-01-15 03:26:02 C 03 57 47.45 +42 16 42.8 15.2 c 704
2009-01-15 03:43:19 C 03 57 49.65 +42 16 50.8 15.7 c 704
2009-01-15 04:00:35 C 03 57 51.88 +42 16 58.8 16.0 c 704
2009-01-15 04:17:53 C 03 57 54.08 +42 17 06.6 16.0 c 704
2009-01-15 04:35:08 C 03 57 56.29 +42 17 14.4 15.6 c 704
2009-01-16 00:41:03 C 04 00 41.98 +42 26 11.3 r B67
2009-01-16 00:45:45 C 04 00 42.62 +42 26 13.1 r B67
2009-01-16 00:50:31 C 04 00 43.28 +42 26 14.9 r B67
2009-01-16 01:50:59 C 04 00 54.06 +42 26 55.7 16.6 c 704
2009-01-16 02:09:04 C 04 00 56.52 +42 27 04.7 15.8 c 704
2009-01-16 02:26:44 C 04 00 58.27 +42 27 11.6 r H53
2009-01-16 02:27:10 C 04 00 58.84 +42 27 13.5 15.7 c 704
2009-01-16 02:29:43 C 04 00 58.64 +42 27 12.9 r H53
2009-01-16 02:32:43 C 04 00 59.02 +42 27 14.3 r H53
2009-01-16 02:35:44 C 04 00 59.43 +42 27 15.7 r H53
2009-01-16 02:38:43 C 04 00 59.82 +42 27 16.8 r H53
2009-01-16 02:41:43 C 04 01 00.20 +42 27 17.9 r H53