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
2012-05-16 07:31:12 C 16 04 23.48 +09 40 19.1 o 291
2012-05-16 07:34:34 C 16 04 23.35 +09 40 22.1 o 291
2012-05-16 07:35:38 C 16 04 23.30 +09 40 22.8 o 691
2012-05-16 07:37:56 C 16 04 23.22 +09 40 25.0 o 291
2012-05-16 08:01:11 C 16 04 22.30 +09 40 45.1 o 691
2012-05-16 08:26:45 C 16 04 21.32 +09 41 07.2 o 691
2012-05-17 06:29:43 C 16 03 35.13 +10 00 05.6 19.5 c 704
2012-05-17 06:46:06 C 16 03 34.34 +10 00 19.8 19.6 c 704
2012-05-17 07:01:02 C 16 03 33.96 +10 00 33.2 o 291
2012-05-17 07:02:30 C 16 03 33.71 +10 00 34.4 19.6 c 704
2012-05-17 07:03:26 C 16 03 33.85 +10 00 35.3 o 291
2012-05-17 07:05:51 C 16 03 33.78 +10 00 37.5 o 291
2012-05-17 07:18:55 C 16 03 33.23 +10 00 48.2 19.0 c 704
2012-05-17 12:10:13 C 16 03 22.214 +10 05 01.45 L F51
2012-05-17 12:26:32 C 16 03 21.558 +10 05 15.51 L F51
2012-05-17 12:42:02 C 16 03 20.922 +10 05 28.63 L F51
2012-05-17 12:56:00 C 16 03 20.357 +10 05 40.46 L F51
2012-05-20 06:03:27 C 16 00 52.18 +11 01 01.8 o 691
2012-05-20 06:29:01 C 16 00 51.06 +11 01 23.6 o 691
2012-05-20 06:54:34 C 16 00 49.91 +11 01 45.4 o 691
2012-05-23 07:48:29 C 15 57 45.88 +12 02 09.2 u H45
2012-05-23 07:51:11 C 15 57 45.76 +12 02 11.0 u H45
2012-05-23 07:53:30 C 15 57 45.69 +12 02 13.6 u H45
2012-05-23 07:55:32 C 15 57 45.52 +12 02 15.1 u H45
2012-05-23 07:57:44 C 15 57 45.44 +12 02 16.9 u H45
2012-05-23 07:59:30 C 15 57 45.36 +12 02 18.0 u H45
2012-05-23 08:01:29 C 15 57 45.29 +12 02 20.3 u H45
2012-05-23 23:14:45 C 15 57 05.43 +12 14 37.2 t 130
2012-05-23 23:16:55 C 15 57 05.37 +12 14 39.7 t 130
2012-05-23 23:19:06 C 15 57 05.25 +12 14 40.7 t 130
2012-05-23 23:21:16 C 15 57 05.10 +12 14 43.1 t 130
2012-05-24 03:26:58 C 15 56 54.86 +12 18 03.9 u H45
2012-05-24 03:31:37 C 15 56 54.63 +12 18 07.2 u H45
2012-05-24 03:44:29 C 15 56 53.96 +12 18 18.0 u H45
2012-05-24 03:45:46 C 15 56 53.95 +12 18 19.6 u H45
2012-05-24 03:47:39 C 15 56 53.83 +12 18 20.1 u H45
2012-05-24 03:49:07 C 15 56 53.76 +12 18 21.2 u H45
2012-05-25 22:00:14 C 15 54 58.10 +12 51 49.5 u 151
2012-05-25 22:04:25 C 15 54 57.92 +12 51 51.7 u 151
2012-05-25 22:06:30 C 15 54 57.80 +12 51 53.9 u 151
2012-05-25 22:08:36 C 15 54 57.69 +12 51 55.3 u 151
2012-05-25 22:12:48 C 15 54 57.49 +12 51 58.8 u 151
2012-05-26 07:04:08 C 15 54 32.22 +12 58 57.5 u H45
2012-05-26 07:07:13 C 15 54 32.06 +12 58 59.5 u H45
2012-05-26 07:08:51 C 15 54 31.94 +12 59 00.8 u H45
2012-05-26 07:10:45 C 15 54 31.84 +12 59 02.2 u H45
2012-05-26 07:12:46 C 15 54 31.79 +12 59 03.9 u H45
2012-05-26 07:14:56 C 15 54 31.65 +12 59 05.5 u H45
2012-05-28 22:20:10 C 15 51 30.68 +13 46 55.8 u 203
2012-05-28 23:09:52 C 15 51 28.05 +13 47 32.7 c A24