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
2012-07-24 02:20:08 C 15 12 18.79 +13 53 40.5 t H21
2012-07-24 02:25:30 C 15 12 18.86 +13 53 35.6 t H21
2012-07-24 02:30:23 C 15 12 18.93 +13 53 31.4 t H21
2012-07-26 20:36:08 C 15 13 55.17 +12 50 50.6 c A24
2012-07-26 20:38:11 C 15 13 55.21 +12 50 48.5 c A24
2012-07-26 20:38:33 C 15 13 55.05 +12 50 48.9 u B38
2012-07-26 20:43:34 C 15 13 55.19 +12 50 43.0 u B38
2012-07-26 20:48:41 C 15 13 55.27 +12 50 38.3 u B38
2012-07-26 20:55:57 C 15 13 55.41 +12 50 30.5 u B38
2012-07-26 21:02:10 C 15 13 55.57 +12 50 24.4 u B38
2012-07-27 19:54:04 C 15 14 35.99 +12 26 43.1 u 160
2012-07-27 19:58:08 C 15 14 36.09 +12 26 38.8 u 160
2012-07-27 20:01:48 C 15 14 36.18 +12 26 34.8 u 160
2012-07-28 02:27:52 C 15 14 48.03 +12 19 45.2 u H21
2012-07-28 02:34:26 C 15 14 48.19 +12 19 38.0 u H21
2012-07-28 02:40:56 C 15 14 48.33 +12 19 31.1 u H21
2012-07-28 02:47:26 C 15 14 48.49 +12 19 23.9 u H21
2012-07-28 20:25:57 C 15 15 22.42 +12 00 01.0 u 160
2012-07-28 20:29:56 C 15 15 22.49 +11 59 56.7 u 160
2012-07-28 20:33:59 C 15 15 22.59 +11 59 52.3 u 160
2012-07-29 20:19:04 C 15 16 11.78 +11 32 42.7 u 160
2012-07-29 20:23:02 C 15 16 11.88 +11 32 38.2 u 160
2012-07-29 20:26:59 C 15 16 11.99 +11 32 33.7 u 160
2012-07-30 20:12:04 C 15 17 05.10 +11 04 01.8 u 160
2012-07-30 20:16:01 C 15 17 05.21 +11 03 56.8 u 160
2012-07-30 20:19:58 C 15 17 05.32 +11 03 52.0 u 160
2012-07-31 20:15:53 C 15 18 02.82 +10 33 38.0 u 160
2012-07-31 20:20:36 C 15 18 02.99 +10 33 31.9 u 160
2012-07-31 20:23:34 C 15 18 03.08 +10 33 27.8 u 160
2012-07-31 21:58:20 C 15 18 06.55 +10 31 21.7 t 204
2012-07-31 22:04:04 C 15 18 06.76 +10 31 14.6 t 204
2012-07-31 22:09:49 C 15 18 06.98 +10 31 06.9 t 204
2012-08-01 20:21:17 C 15 19 04.89 +10 01 35.7 u 160
2012-08-01 20:25:14 C 15 19 05.04 +10 01 30.3 u 160
2012-08-01 20:29:10 C 15 19 05.18 +10 01 24.9 u 160
2012-08-02 20:33:12 C 15 20 11.72 +09 27 40.9 u 160
2012-08-02 20:36:11 C 15 20 11.83 +09 27 36.6 u 160
2012-08-02 20:38:46 C 15 20 11.92 +09 27 33.0 u 160
2012-08-03 19:34:40 C 15 21 20.13 +08 53 41.6 u B38
2012-08-03 19:43:32 C 15 21 20.49 +08 53 28.7 u B38
2012-08-03 19:54:23 C 15 21 20.99 +08 53 11.3 u B38
2012-08-03 20:00:36 C 15 21 21.23 +08 53 01.7 u B38
2012-08-03 20:06:30 C 15 21 21.46 +08 52 53.1 u B38
2012-08-03 20:15:06 C 15 21 21.90 +08 52 39.7 u 160
2012-08-03 20:18:27 C 15 21 22.05 +08 52 34.6 u 160
2012-08-03 20:21:27 C 15 21 22.17 +08 52 30.5 u A78
2012-08-03 20:22:11 C 15 21 22.20 +08 52 28.9 u 160
2012-08-03 20:30:40 C 15 21 22.57 +08 52 15.9 u A78
2012-08-03 20:39:36 C 15 21 22.97 +08 52 02.3 u A78
2012-08-03 20:48:40 C 15 21 23.29 +08 51 49.3 u A78