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
2009-04-01 22:22:06 C 08 48 54.32 +27 46 37.8 17.9 o 084
2009-04-08 20:44:40 C 09 06 35.58 +25 24 59.4 17.6 o 084
2009-04-18 04:09:16 C 09 28 35.50 +22 22 23.8 r 703
2009-04-18 04:16:19 C 09 28 36.04 +22 22 19.2 r 703
2009-04-18 04:23:19 C 09 28 36.76 +22 22 13.0 r 703
2009-04-18 04:30:20 C 09 28 37.48 +22 22 07.2 r 703
2009-04-21 04:27:27 C 09 35 21.09 +21 25 13.3 18.4 c 704
2009-04-21 04:43:07 C 09 35 22.50 +21 25 00.7 18.7 c 704
2009-04-21 04:59:03 C 09 35 23.95 +21 24 48.3 18.6 c 704
2009-04-21 05:14:41 C 09 35 25.35 +21 24 35.6 18.7 c 704
2009-04-21 05:30:06 C 09 35 26.76 +21 24 23.7 18.5 c 704
2009-04-27 05:14:05 C 09 48 27.07 +19 33 31.3 18.2 c 704
2009-04-27 05:29:01 C 09 48 28.36 +19 33 20.8 18.5 c 704
2009-04-27 05:43:56 C 09 48 29.61 +19 33 09.1 18.9 c 704
2009-04-27 05:59:12 C 09 48 30.95 +19 32 57.0 18.2 c 704
2009-04-27 06:14:20 C 09 48 32.32 +19 32 46.0 18.5 c 704
2009-04-30 04:35:28 C 09 54 43.02 +18 39 49.1 r 703
2009-04-30 04:46:49 C 09 54 43.99 +18 39 40.4 r 703
2009-04-30 04:58:04 C 09 54 44.92 +18 39 32.3 r 703
2009-04-30 05:09:30 C 09 54 45.93 +18 39 23.7 r 703
2009-05-16 03:41:51 C 10 26 34.83 +14 05 56.2 r 703
2009-05-16 03:57:48 C 10 26 36.09 +14 05 44.4 r 703
2009-05-16 04:13:46 C 10 26 37.32 +14 05 33.6 r 703
2009-05-16 04:29:28 C 10 26 38.54 +14 05 21.9 r 703
2009-06-24 03:51:36 C 11 36 23.11 +04 18 29.0 r G96
2009-06-24 03:57:40 C 11 36 23.50 +04 18 25.7 r G96
2009-06-24 04:03:46 C 11 36 23.94 +04 18 21.8 r G96
2009-06-24 04:09:58 C 11 36 24.37 +04 18 18.5 r G96
2012-07-26 10:22:53 C 00 42 46.42 -02 15 43.6 u 807
2012-07-26 10:27:31 C 00 42 46.52 -02 15 43.2 u 807
2012-07-26 10:31:35 C 00 42 46.57 -02 15 43.0 u 807
2012-07-26 10:39:25 C 00 42 46.74 -02 15 42.2 u 807
2012-08-02 13:27:20 c 00 45 40.382 -02 07 58.65 L F51
2012-08-02 13:44:53 c 00 45 40.595 -02 07 58.33 L F51
2012-08-09 06:53:02 C 00 47 22.55 -02 07 01.3 V G45
2012-08-09 07:13:52 C 00 47 22.73 -02 07 01.1 V G45
2012-08-09 07:57:00 C 00 47 22.97 -02 07 01.7 V G45
2012-08-09 10:34:44 C 00 47 23.93 -02 07 03.5 V G45
2012-08-16 23:18:36 C 00 47 54.23 -02 14 07.0 u A13
2012-08-16 23:57:07 C 00 47 54.14 -02 14 09.7 u A13
2012-08-18 22:13:58 C 00 47 46.41 -02 17 22.6 u A13
2012-08-18 23:19:03 C 00 47 46.08 -02 17 27.1 u A13
2012-09-08 21:53:58 C 00 38 50.29 -03 28 00.4 u A13
2012-09-08 22:24:12 C 00 38 49.29 -03 28 07.0 u A13
2012-09-15 07:12:36 C 00 33 17.46 -04 00 26.8 r 703
2012-09-15 07:29:01 C 00 33 16.77 -04 00 29.8 r 703
2012-09-15 07:45:36 C 00 33 16.09 -04 00 33.8 r 703
2012-09-15 08:02:17 C 00 33 15.40 -04 00 37.1 r 703
2012-09-17 21:50:19 C 00 30 40.61 -04 14 36.7 u A13
2012-09-17 22:26:33 C 00 30 39.01 -04 14 44.7 u A13