2012 HG31

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5319673267 ± 7.98e-09
Semi-major axis (a)2.1732712986 AU ± 9.42e-09
Inclination (i)10.23798587° ± 1.67e-06
Long. of Asc. Node (Ω)148.27056709° ± 6.53e-06
Arg. of Perihelion (ω)173.10878193° ± 7.01e-06
Mean Anomaly (M)49.34952789° ± 9.93e-06
Mean Motion (n)0.3076389776°/day ± 2.00e-09
Perihelion dist (q)1.01716198 AU ± 1.79e-08
Aphelion dist (Q)3.32938062 AU ± 2.26e-08
Orbital Period3.20384072 yr ± 2.08e-08
Physical Parameters
H (abs. magnitude)18.93
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.266″
Uncertainty0
Orbit TypeAmor
MOID0.006038 AU
Observations Used510
Oppositions9
Arc Total2012-2025
First Observation Used2012-04-15
Last Observation Used2025-12-25
Observations (546)
Date Type RA Dec Mag Band Observatory
2012-04-15 13:17:16 C 16 12 07.814 -00 07 31.97 L F51
2012-04-15 13:34:05 C 16 12 07.961 -00 07 21.04 L F51
2012-04-24 13:02:10 C 16 13 28.338 +02 24 51.10 L F51
2012-04-24 13:17:00 C 16 13 28.284 +02 25 02.29 L F51
2012-04-24 13:31:46 C 16 13 28.235 +02 25 13.39 L F51
2012-04-24 13:45:50 C 16 13 28.178 +02 25 23.97 L F51
2012-04-26 15:44:36 C 16 13 22.75 +03 03 39.8 o 300
2012-04-26 15:49:45 C 16 13 22.77 +03 03 44.2 o 300
2012-04-26 15:52:21 C 16 13 22.71 +03 03 45.9 o 300
2012-04-26 15:54:56 C 16 13 22.67 +03 03 48.3 o 300
2012-04-26 15:57:31 C 16 13 22.61 +03 03 51.3 o 300
2012-04-26 16:00:07 C 16 13 22.59 +03 03 53.6 o 300
2012-04-27 14:19:52 C 16 13 17.14 +03 21 32.3 u D90
2012-04-27 14:33:32 C 16 13 16.94 +03 21 43.9 u D90
2012-04-27 14:46:34 C 16 13 16.86 +03 21 54.4 u D90
2012-04-29 11:22:22 C 16 12 58.82 +03 57 06.2 o 291
2012-04-29 11:29:05 C 16 12 58.76 +03 57 11.6 o 291
2012-04-29 11:35:00 C 16 12 58.69 +03 57 16.2 o 291
2012-04-30 07:32:56 C 16 12 49.13 +04 13 22.0 o 291
2012-04-30 07:36:06 C 16 12 49.09 +04 13 24.6 o 291
2012-04-30 07:39:14 C 16 12 49.04 +04 13 27.1 o 291
2012-05-01 05:29:46 C 16 12 36.32 +04 31 12.9 o 291
2012-05-01 05:33:05 C 16 12 36.28 +04 31 15.6 o 291
2012-05-02 07:32:54 C 16 12 17.97 +04 52 36.1 o 291
2012-05-02 07:36:46 C 16 12 17.91 +04 52 39.6 o 291
2012-05-02 07:40:39 C 16 12 17.85 +04 52 42.8 o 291
2012-05-03 01:24:48 C 16 12 03.68 +05 07 20.8 t 204
2012-05-03 01:51:57 C 16 12 03.25 +05 07 43.4 t 204
2012-05-04 04:12:28 C 16 11 40.96 +05 29 58.4 o 807
2012-05-04 04:18:24 C 16 11 40.85 +05 30 03.9 o 807
2012-05-04 04:24:22 C 16 11 40.72 +05 30 08.6 o 807
2012-05-05 06:16:24 C 16 11 15.63 +05 51 40.1 u 448
2012-05-05 06:40:28 C 16 11 15.18 +05 51 59.6 u 448
2012-05-05 07:02:58 C 16 11 14.79 +05 52 17.6 u 448
2012-05-09 06:23:14 C 16 09 18.18 +07 14 02.2 o 807
2012-05-09 06:32:16 C 16 09 17.91 +07 14 09.9 o 807
2012-05-09 06:41:18 C 16 09 17.68 +07 14 18.0 o 807
2012-05-09 06:50:24 C 16 09 17.43 +07 14 25.6 o 807
2012-05-11 09:35:42 C 16 08 00.60 +07 58 04.9 o 291
2012-05-11 09:39:26 C 16 08 00.48 +07 58 08.2 o 291
2012-05-11 09:43:11 C 16 08 00.38 +07 58 11.2 o 291
2012-05-11 22:44:19 C 16 07 39.59 +08 09 26.6 u 157
2012-05-11 22:52:03 C 16 07 39.34 +08 09 33.3 u 157
2012-05-11 22:59:47 C 16 07 39.12 +08 09 39.8 u 157
2012-05-12 04:14:19 C 16 07 30.88 +08 14 15.2 o G48
2012-05-12 04:16:52 C 16 07 30.85 +08 14 16.4 o G48
2012-05-12 04:19:25 C 16 07 30.76 +08 14 18.4 o G48
2012-05-12 06:33:49 C 16 07 26.54 +08 16 16.6 o 691
2012-05-12 06:59:38 C 16 07 25.74 +08 16 39.0 o 691
2012-05-12 07:25:28 C 16 07 24.89 +08 17 01.2 o 691