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
2012-05-28 23:11:57 C 15 51 27.95 +13 47 33.5 c A24
2012-05-28 23:29:19 C 15 51 27.02 +13 47 46.5 u 203
2012-05-28 23:32:27 C 15 51 26.82 +13 47 49.2 c A24
2012-05-28 23:56:15 C 15 51 25.61 +13 48 06.6 c A24
2012-05-29 00:05:02 C 15 51 25.34 +13 48 17.6 19.1 u J43
2012-05-29 00:16:03 C 15 51 24.51 +13 48 21.3 c A24
2012-05-29 00:18:07 C 15 51 24.45 +13 48 22.8 c A24
2012-05-29 00:22:57 C 15 51 24.43 +13 48 30.5 19.2 u J43
2012-05-29 00:40:52 C 15 51 23.47 +13 48 43.6 19.0 u J43
2012-05-29 06:12:38 C 15 51 07.51 +13 52 47.6 o 691
2012-05-29 06:38:13 C 15 51 06.12 +13 53 06.6 o 691
2012-05-29 07:03:50 C 15 51 04.74 +13 53 25.3 o 691
2012-05-29 23:21:50 C 15 50 16.26 +14 05 12.4 c A24
2012-05-29 23:23:54 C 15 50 16.18 +14 05 13.6 c A24
2012-05-29 23:44:28 C 15 50 15.09 +14 05 28.2 c A24
2012-05-30 00:08:18 C 15 50 13.76 +14 05 45.5 c A24
2012-05-30 00:28:09 C 15 50 12.76 +14 05 59.3 c A24
2012-05-30 00:30:14 C 15 50 12.59 +14 06 01.2 c A24
2012-06-06 04:48:29 C 15 41 21.83 +15 58 17.0 u H21
2012-06-06 04:54:04 C 15 41 21.49 +15 58 20.2 u H21
2012-06-06 04:59:26 C 15 41 21.18 +15 58 23.2 u H21
2012-06-06 05:04:44 C 15 41 20.87 +15 58 26.3 u H21
2012-06-06 05:15:10 C 15 41 20.28 +15 58 32.2 u H21
2012-06-07 04:41:07 C 15 40 06.74 +16 11 44.4 t H21
2012-06-07 04:50:01 C 15 40 06.22 +16 11 49.4 t H21
2012-06-07 04:58:56 C 15 40 05.72 +16 11 54.4 t H21
2012-06-08 04:35:43 C 15 38 51.55 +16 24 38.8 u H21
2012-06-08 04:40:09 C 15 38 51.28 +16 24 41.3 u H21
2012-06-08 04:44:36 C 15 38 51.04 +16 24 43.5 u H21
2012-06-08 04:50:42 C 15 38 50.68 +16 24 46.7 u H21
2012-06-09 04:31:44 C 15 37 36.38 +16 36 59.3 u H21
2012-06-09 04:37:18 C 15 37 36.09 +16 37 02.0 u H21
2012-06-09 04:42:51 C 15 37 35.76 +16 37 04.5 u H21
2012-06-09 04:48:25 C 15 37 35.45 +16 37 07.2 u H21
2012-06-09 05:41:20 C 15 37 32.52 +16 37 35.4 u H45
2012-06-09 05:43:39 C 15 37 32.32 +16 37 36.7 u H45
2012-06-09 05:45:07 C 15 37 32.30 +16 37 37.6 u H45
2012-06-09 05:47:52 C 15 37 32.07 +16 37 38.7 u H45
2012-06-09 05:50:50 C 15 37 31.98 +16 37 40.4 u H45
2012-06-09 05:52:18 C 15 37 31.89 +16 37 40.7 u H45
2012-06-10 06:59:44 C 15 36 13.24 +16 49 57.9 r 703
2012-06-10 07:07:47 C 15 36 12.81 +16 50 01.3 r 703
2012-06-10 07:15:59 C 15 36 12.34 +16 50 05.2 r 703
2012-06-11 01:35:39 C 15 35 16.16 +16 58 32.3 u I15
2012-06-11 01:41:52 C 15 35 15.84 +16 58 35.4 u I15
2012-06-11 01:48:06 C 15 35 15.49 +16 58 38.1 u I15
2012-06-12 21:35:50 C 15 33 00.33 +17 17 27.3 u I76
2012-06-12 23:24:14 C 15 32 54.23 +17 18 10.6 u I76
2012-06-13 05:35:26 C 15 32 35.25 +17 20 40.7 u H45
2012-06-13 05:38:24 C 15 32 35.09 +17 20 41.9 u H45