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
2012-07-17 02:33:59 C 15 10 13.30 +15 58 52.6 u H21
2012-07-17 02:40:39 C 15 10 13.29 +15 58 48.5 u H21
2012-07-17 02:51:10 C 15 10 13.24 +15 58 41.8 u H21
2012-07-17 20:35:52 C 15 10 18.70 +15 47 28.1 u B38
2012-07-17 20:41:52 C 15 10 18.70 +15 47 24.5 u B38
2012-07-17 20:47:37 C 15 10 18.76 +15 47 19.4 c A24
2012-07-17 20:47:48 C 15 10 18.69 +15 47 20.4 u B38
2012-07-17 20:48:40 C 15 10 18.79 +15 47 18.7 c A24
2012-07-17 20:49:42 C 15 10 18.77 +15 47 18.0 c A24
2012-07-17 20:50:44 C 15 10 18.80 +15 47 17.6 c A24
2012-07-17 20:53:24 C 15 10 18.68 +15 47 15.9 u B38
2012-07-17 20:59:46 C 15 10 18.69 +15 47 12.6 u B38
2012-07-17 21:19:52 C 15 10 18.73 +15 46 58.6 u 160
2012-07-17 21:22:50 C 15 10 18.74 +15 46 56.6 u 160
2012-07-17 21:25:48 C 15 10 18.73 +15 46 54.9 u 160
2012-07-17 21:53:43 C 15 10 18.84 +15 46 35.2 c A24
2012-07-17 21:54:45 C 15 10 18.86 +15 46 35.0 c A24
2012-07-17 21:55:48 C 15 10 18.80 +15 46 34.6 c A24
2012-07-17 21:56:50 C 15 10 18.85 +15 46 34.0 c A24
2012-07-18 20:37:11 C 15 10 29.18 +15 31 34.0 c A24
2012-07-18 20:39:16 C 15 10 29.19 +15 31 32.9 c A24
2012-07-18 20:48:27 C 15 10 29.07 +15 31 27.1 u B38
2012-07-18 20:54:04 C 15 10 29.07 +15 31 22.8 u B38
2012-07-18 21:00:08 C 15 10 29.08 +15 31 18.7 u B38
2012-07-18 21:00:25 C 15 10 29.24 +15 31 17.7 c A24
2012-07-18 21:06:40 C 15 10 29.12 +15 31 13.7 u B38
2012-07-18 21:12:48 C 15 10 29.09 +15 31 09.9 u B38
2012-07-18 21:21:58 C 15 10 29.18 +15 31 03.2 u 160
2012-07-18 21:24:52 C 15 10 29.28 +15 31 01.1 c A24
2012-07-18 21:24:54 C 15 10 29.19 +15 31 01.3 u 160
2012-07-18 21:27:53 C 15 10 29.18 +15 30 59.0 u 160
2012-07-18 21:45:20 C 15 10 29.40 +15 30 46.6 c A24
2012-07-18 21:47:25 C 15 10 29.39 +15 30 45.4 c A24
2012-07-19 21:26:05 C 15 10 43.12 +15 14 13.8 c A24
2012-07-19 21:28:09 C 15 10 43.11 +15 14 12.1 c A24
2012-07-21 02:17:48 C 15 11 04.63 +14 52 56.9 u H21
2012-07-21 02:29:44 C 15 11 04.70 +14 52 47.6 u H21
2012-07-21 02:33:03 C 15 11 04.72 +14 52 45.1 u H21
2012-07-21 02:35:50 C 15 11 04.74 +14 52 43.0 u H21
2012-07-22 02:16:25 C 15 11 25.85 +14 34 11.7 t H21
2012-07-22 02:21:25 C 15 11 25.89 +14 34 07.6 t H21
2012-07-22 02:26:25 C 15 11 25.92 +14 34 03.6 t H21
2012-07-22 02:29:44 C 15 11 25.94 +14 34 00.7 t H21
2012-07-23 20:29:26 C 15 12 11.50 +13 58 45.1 c A24
2012-07-23 20:31:31 C 15 12 11.48 +13 58 43.5 c A24
2012-07-23 20:53:08 C 15 12 11.78 +13 58 23.8 c A24
2012-07-23 21:18:03 C 15 12 12.07 +13 58 02.4 c A24
2012-07-23 21:38:59 C 15 12 12.41 +13 57 43.5 c A24
2012-07-23 21:41:04 C 15 12 12.40 +13 57 42.4 c A24
2012-07-24 02:14:29 C 15 12 18.72 +13 53 45.6 t H21