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
2012-07-05 20:20:27 C 15 12 16.33 +17 56 40.7 u 160
2012-07-05 20:24:19 C 15 12 16.18 +17 56 39.5 u 160
2012-07-05 20:28:20 C 15 12 16.21 +17 56 38.7 u 160
2012-07-05 20:38:26 C 15 12 15.88 +17 56 36.0 u B38
2012-07-05 20:48:02 C 15 12 15.63 +17 56 33.4 u B38
2012-07-05 20:55:19 C 15 12 15.49 +17 56 31.3 u B38
2012-07-05 21:03:44 C 15 12 15.27 +17 56 29.5 u B38
2012-07-05 21:54:07 C 15 12 14.06 +17 56 15.2 u 160
2012-07-05 21:56:56 C 15 12 13.99 +17 56 14.3 u 160
2012-07-05 21:59:49 C 15 12 13.92 +17 56 13.3 u 160
2012-07-07 21:20:43 C 15 11 26.05 +17 42 14.9 u B38
2012-07-07 21:27:15 C 15 11 25.95 +17 42 13.5 u B38
2012-07-07 21:34:15 C 15 11 25.74 +17 42 10.7 u B38
2012-07-07 21:41:20 C 15 11 25.63 +17 42 07.8 u B38
2012-07-07 21:48:18 C 15 11 25.47 +17 42 05.9 u B38
2012-07-09 21:21:26 C 15 10 48.60 +17 25 12.8 u B38
2012-07-09 21:27:42 C 15 10 48.47 +17 25 10.5 u B38
2012-07-09 22:12:43 C 15 10 47.77 +17 24 52.9 u B38
2012-07-09 22:17:19 C 15 10 47.67 +17 24 50.4 u B38
2012-07-09 22:22:50 C 15 10 47.60 +17 24 48.7 u B38
2012-07-11 21:52:17 C 15 10 22.44 +17 05 01.9 u B38
2012-07-11 21:58:23 C 15 10 22.33 +17 04 58.3 u B38
2012-07-11 22:05:22 C 15 10 22.27 +17 04 55.3 u B38
2012-07-11 22:12:19 C 15 10 22.17 +17 04 52.2 u B38
2012-07-11 22:19:53 C 15 10 22.07 +17 04 49.2 u B38
2012-07-12 21:27:29 C 15 10 14.44 +16 54 07.4 c A24
2012-07-12 21:28:31 C 15 10 14.41 +16 54 06.9 c A24
2012-07-12 21:51:09 C 15 10 14.15 +16 53 55.5 c A24
2012-07-12 22:14:39 C 15 10 13.92 +16 53 43.5 c A24
2012-07-12 22:35:54 C 15 10 13.71 +16 53 33.1 c A24
2012-07-12 22:36:57 C 15 10 13.70 +16 53 32.2 c A24
2012-07-13 05:15:33 C 15 10 11.87 +16 50 27.6 17.9 c 704
2012-07-13 05:30:52 C 15 10 11.67 +16 50 19.9 18.4 c 704
2012-07-13 05:46:03 C 15 10 11.82 +16 50 10.7 18.4 c 704
2012-07-13 06:01:12 C 15 10 11.68 +16 50 03.4 18.8 c 704
2012-07-13 06:16:40 C 15 10 11.27 +16 49 56.4 18.3 c 704
2012-07-16 04:07:05 C 15 10 08.55 +16 12 26.0 18.0 c 704
2012-07-16 04:22:34 C 15 10 08.58 +16 12 16.8 18.1 c 704
2012-07-16 04:38:23 C 15 10 08.48 +16 12 07.4 18.1 c 704
2012-07-16 04:53:54 C 15 10 08.39 +16 11 57.9 18.0 c 704
2012-07-16 05:09:23 C 15 10 08.35 +16 11 48.8 18.0 c 704
2012-07-16 20:54:49 C 15 10 11.66 +16 02 17.2 c A24
2012-07-16 20:56:54 C 15 10 11.64 +16 02 15.9 c A24
2012-07-16 20:59:02 C 15 10 11.55 +16 02 15.1 u 160
2012-07-16 21:01:26 C 15 10 11.54 +16 02 14.0 u 160
2012-07-16 21:03:50 C 15 10 11.53 +16 02 12.2 u 160
2012-07-16 21:18:01 C 15 10 11.61 +16 02 02.6 c A24
2012-07-16 21:42:26 C 15 10 11.56 +16 01 47.3 c A24
2012-07-16 22:02:52 C 15 10 11.53 +16 01 34.6 c A24
2012-07-16 22:04:56 C 15 10 11.53 +16 01 33.3 c A24