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
2012-08-03 20:58:12 C 15 21 23.76 +08 51 33.2 u A78
2012-08-04 19:28:06 C 15 22 35.59 +08 16 30.0 u B38
2012-08-04 19:34:50 C 15 22 35.84 +08 16 19.0 u B38
2012-08-04 19:42:41 C 15 22 36.25 +08 16 06.1 u B38
2012-08-04 19:50:36 C 15 22 36.60 +08 15 53.4 u B38
2012-08-04 19:57:40 C 15 22 36.90 +08 15 41.6 u B38
2012-08-04 20:40:34 C 15 22 38.93 +08 14 32.3 u 160
2012-08-04 20:44:29 C 15 22 39.11 +08 14 26.0 u 160
2012-08-04 20:48:27 C 15 22 39.30 +08 14 19.8 u 160
2012-08-05 20:21:17 C 15 23 59.05 +07 35 28.9 u 160
2012-08-05 20:24:26 C 15 23 59.20 +07 35 23.5 u 160
2012-08-05 20:27:33 C 15 23 59.35 +07 35 18.2 u 160
2012-08-06 02:07:54 C 15 24 19.71 +07 25 40.6 u H21
2012-08-06 02:12:37 C 15 24 19.93 +07 25 32.5 u H21
2012-08-06 02:17:42 C 15 24 20.18 +07 25 23.6 u H21
2012-08-06 02:23:15 C 15 24 20.44 +07 25 14.0 u H21
2012-08-06 19:33:47 C 15 25 22.91 +06 55 01.6 u B38
2012-08-06 19:40:28 C 15 25 23.31 +06 54 49.3 u B38
2012-08-06 19:48:41 C 15 25 23.74 +06 54 34.2 u B38
2012-08-06 19:56:44 C 15 25 24.18 +06 54 19.6 u B38
2012-08-06 20:03:59 C 15 25 24.54 +06 54 07.1 u B38
2012-08-07 12:27:57 C 15 26 26.54 +06 24 11.8 o 300
2012-08-07 12:32:26 C 15 26 26.79 +06 24 03.0 o 300
2012-08-07 12:33:56 C 15 26 26.86 +06 23 59.8 o 300
2012-08-07 20:24:26 C 15 26 58.27 +06 09 05.6 o C77
2012-08-07 20:27:28 C 15 26 58.43 +06 08 59.4 o C77
2012-08-07 20:32:46 C 15 26 58.71 +06 08 50.0 o C77
2012-08-07 20:37:09 C 15 26 58.99 +06 08 41.2 o C77
2012-08-07 20:41:49 C 15 26 59.26 +06 08 32.0 o C77
2012-08-08 19:18:58 C 15 28 32.79 +05 24 10.6 u B38
2012-08-08 19:26:03 C 15 28 33.25 +05 23 56.2 u B38
2012-08-08 19:32:26 C 15 28 33.61 +05 23 43.6 u B38
2012-08-08 19:37:56 C 15 28 33.94 +05 23 32.0 u B38
2012-08-08 19:51:00 C 15 28 34.77 +05 23 05.9 u B38
2012-08-09 09:02:43 C 15 29 32.82 +04 57 07.0 o E10
2012-08-09 09:04:28 C 15 29 32.92 +04 57 03.2 o E10
2012-08-09 09:06:04 C 15 29 33.02 +04 56 59.9 o E10
2012-08-09 09:07:32 C 15 29 33.11 +04 56 56.8 o E10
2012-08-09 09:09:09 C 15 29 33.21 +04 56 53.3 o E10
2012-08-09 09:10:40 C 15 29 33.30 +04 56 50.3 o E10
2012-08-09 09:12:11 C 15 29 33.40 +04 56 47.1 o E10
2012-08-09 09:13:40 C 15 29 33.50 +04 56 44.0 o E10
2012-08-09 09:44:52 C 15 29 35.40 +04 55 38.6 o E10
2012-08-09 09:46:22 C 15 29 35.50 +04 55 35.4 o E10
2012-08-09 09:47:49 C 15 29 35.54 +04 55 32.5 o E10
2012-08-09 09:49:14 C 15 29 35.62 +04 55 29.5 o E10
2012-08-09 09:50:45 C 15 29 35.71 +04 55 26.3 o E10
2012-08-09 09:52:22 C 15 29 35.81 +04 55 22.9 o E10
2012-08-09 09:53:57 C 15 29 35.91 +04 55 19.7 o E10
2012-08-09 09:55:20 C 15 29 36.01 +04 55 16.7 o E10