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
2012-06-13 05:40:18 C 15 32 34.93 +17 20 42.6 u H45
2012-06-13 05:41:58 C 15 32 34.81 +17 20 43.5 u H45
2012-06-13 05:44:30 C 15 32 34.70 +17 20 44.3 u H45
2012-06-13 05:47:04 C 15 32 34.54 +17 20 45.4 u H45
2012-06-14 04:00:55 C 15 31 27.65 +17 29 14.2 u H21
2012-06-14 04:06:19 C 15 31 27.34 +17 29 16.2 u H21
2012-06-14 04:11:38 C 15 31 27.05 +17 29 18.2 u H21
2012-06-14 04:16:56 C 15 31 26.76 +17 29 20.2 u H21
2012-06-14 04:22:15 C 15 31 26.46 +17 29 22.1 u H21
2012-06-14 04:27:43 C 15 31 26.16 +17 29 24.0 u H21
2012-06-14 07:24:48 C 15 31 16.79 +17 30 31.5 o 695
2012-06-14 07:28:32 C 15 31 16.60 +17 30 32.7 o 695
2012-06-14 07:32:12 C 15 31 16.39 +17 30 34.0 o 695
2012-06-14 07:35:44 C 15 31 16.20 +17 30 35.3 o 695
2012-06-15 03:57:53 C 15 30 15.94 +17 37 45.0 u H21
2012-06-15 04:02:19 C 15 30 15.68 +17 37 46.6 u H21
2012-06-15 04:06:47 C 15 30 15.45 +17 37 48.2 u H21
2012-06-15 04:11:12 C 15 30 15.19 +17 37 49.6 u H21
2012-06-15 20:56:49 C 15 29 25.88 +17 43 19.4 u 151
2012-06-15 21:01:00 C 15 29 25.65 +17 43 20.7 u 151
2012-06-15 21:05:11 C 15 29 25.42 +17 43 22.0 u 151
2012-06-15 21:31:52 C 15 29 24.00 +17 43 31.8 u 203
2012-06-15 22:30:35 C 15 29 20.85 +17 43 50.0 u 203
2012-06-16 07:35:03 C 15 28 53.83 +17 46 45.2 r 703
2012-06-16 07:47:15 C 15 28 53.14 +17 46 47.6 r 703
2012-06-16 07:59:26 C 15 28 52.53 +17 46 51.8 r 703
2012-06-16 08:11:45 C 15 28 51.85 +17 46 55.7 r 703
2012-06-17 04:51:58 C 15 27 52.71 +17 53 02.7 u H45
2012-06-17 04:54:26 C 15 27 52.59 +17 53 03.0 u H45
2012-06-17 04:56:43 C 15 27 52.45 +17 53 03.7 u H45
2012-06-17 04:58:59 C 15 27 52.33 +17 53 04.3 u H45
2012-06-17 05:01:41 C 15 27 52.18 +17 53 04.9 u H45
2012-06-17 05:03:44 C 15 27 52.08 +17 53 05.3 u H45
2012-06-17 05:06:51 C 15 27 51.93 +17 53 06.1 u H45
2012-06-19 04:39:17 C 15 25 38.38 +18 05 09.1 u H45
2012-06-19 04:41:29 C 15 25 38.28 +18 05 09.7 u H45
2012-06-19 04:43:31 C 15 25 38.22 +18 05 10.2 u H45
2012-06-19 04:45:13 C 15 25 38.10 +18 05 10.4 u H45
2012-06-19 04:48:08 C 15 25 37.93 +18 05 11.0 u H45
2012-06-19 04:51:15 C 15 25 37.81 +18 05 12.1 u H45
2012-06-19 21:41:55 C 15 24 51.94 +18 08 44.3 u 160
2012-06-19 21:45:57 C 15 24 51.76 +18 08 45.0 u 160
2012-06-19 21:49:58 C 15 24 51.57 +18 08 46.2 u 160
2012-06-21 21:44:03 C 15 22 45.81 +18 17 05.2 u 160
2012-06-21 21:47:52 C 15 22 45.57 +18 17 05.2 u 160
2012-06-22 21:51:55 C 15 21 45.14 +18 20 11.2 u 160
2012-06-22 21:55:56 C 15 21 44.96 +18 20 12.0 u 160
2012-06-22 21:59:18 C 15 21 44.80 +18 20 12.1 u 160
2012-06-25 04:57:04 C 15 19 34.97 +18 24 40.6 18.7 c 704
2012-06-25 05:11:40 C 15 19 34.31 +18 24 41.5 18.7 c 704