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
2012-06-25 05:26:17 C 15 19 33.67 +18 24 42.3 18.9 c 704
2012-06-25 05:41:01 C 15 19 33.02 +18 24 43.1 18.6 c 704
2012-06-25 05:55:35 C 15 19 32.35 +18 24 41.6 18.7 c 704
2012-06-25 06:01:08 C 15 19 31.79 +18 24 41.0 u H45
2012-06-25 06:04:06 C 15 19 31.70 +18 24 41.0 u H45
2012-06-25 06:06:31 C 15 19 31.58 +18 24 41.1 u H45
2012-06-25 06:08:13 C 15 19 31.51 +18 24 41.2 u H45
2012-06-25 06:10:01 C 15 19 31.45 +18 24 41.2 u H45
2012-06-25 06:12:31 C 15 19 31.33 +18 24 41.4 u H45
2012-06-26 05:16:38 C 15 18 40.48 +18 25 22.2 u H21
2012-06-26 05:20:56 C 15 18 40.30 +18 25 22.0 u H21
2012-06-26 05:25:23 C 15 18 40.12 +18 25 22.1 u H21
2012-06-26 21:43:05 C 15 18 05.75 +18 25 27.0 u B38
2012-06-26 21:50:36 C 15 18 05.45 +18 25 26.8 u B38
2012-06-26 21:57:16 C 15 18 05.13 +18 25 27.1 u B38
2012-06-27 02:33:06 C 15 17 56.22 +18 25 27.2 u H21
2012-06-27 02:39:27 C 15 17 55.99 +18 25 27.2 u H21
2012-06-27 02:45:12 C 15 17 55.75 +18 25 27.1 u H21
2012-06-27 05:59:04 C 15 17 47.99 +18 25 24.8 u H45
2012-06-27 06:00:59 C 15 17 47.89 +18 25 24.8 u H45
2012-06-27 06:02:07 C 15 17 47.87 +18 25 24.8 u H45
2012-06-27 06:04:04 C 15 17 47.80 +18 25 24.7 u H45
2012-06-27 06:07:08 C 15 17 47.71 +18 25 24.7 u H45
2012-06-27 06:08:27 C 15 17 47.65 +18 25 24.6 u H45
2012-06-29 05:08:33 C 15 16 15.47 +18 23 24.8 u H45
2012-06-29 05:11:02 C 15 16 15.42 +18 23 24.8 u H45
2012-06-29 05:12:25 C 15 16 15.38 +18 23 24.7 u H45
2012-06-29 05:15:31 C 15 16 15.29 +18 23 24.7 u H45
2012-06-29 05:18:11 C 15 16 15.19 +18 23 24.0 u H45
2012-06-29 05:20:55 C 15 16 15.04 +18 23 23.8 u H45
2012-06-29 21:18:39 C 15 15 46.29 +18 22 02.4 u 160
2012-06-29 21:22:16 C 15 15 46.19 +18 22 02.3 u 160
2012-06-29 21:26:19 C 15 15 46.02 +18 22 01.5 u 160
2012-06-30 05:38:48 C 15 15 30.85 +18 21 14.9 u H21
2012-06-30 05:50:11 C 15 15 30.46 +18 21 13.8 u H21
2012-06-30 06:00:53 C 15 15 30.10 +18 21 12.4 u H21
2012-07-02 04:46:46 C 15 14 13.29 +18 15 09.3 u H21
2012-07-02 05:00:58 C 15 14 12.84 +18 15 06.8 u H21
2012-07-02 05:08:59 C 15 14 12.57 +18 15 05.2 u H21
2012-07-02 20:37:42 C 15 13 49.98 +18 12 28.8 u B88
2012-07-02 21:24:35 C 15 13 48.57 +18 12 20.3 u B88
2012-07-02 22:11:27 C 15 13 47.16 +18 12 11.2 u B88
2012-07-03 22:21:59 C 15 13 13.06 +18 07 29.9 t 204
2012-07-03 22:37:08 C 15 13 12.62 +18 07 26.7 t 204
2012-07-04 05:07:31 C 15 13 03.75 +18 06 06.3 u H21
2012-07-04 05:21:58 C 15 13 03.38 +18 06 03.1 u H21
2012-07-04 05:34:57 C 15 13 03.05 +18 06 00.1 u H21
2012-07-04 20:52:14 C 15 12 44.16 +18 02 32.7 u 160
2012-07-04 20:55:35 C 15 12 44.08 +18 02 31.6 u 160
2012-07-04 20:58:56 C 15 12 43.97 +18 02 30.6 u 160