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
2012-08-09 09:56:42 C 15 29 36.10 +04 55 13.7 o E10
2012-08-09 19:41:55 C 15 30 19.54 +04 33 24.4 u B38
2012-08-09 19:48:06 C 15 30 19.98 +04 33 11.6 u B38
2012-08-09 19:54:14 C 15 30 20.33 +04 32 57.5 u B38
2012-08-09 20:00:27 C 15 30 20.76 +04 32 44.2 u B38
2012-08-09 20:07:53 C 15 30 21.31 +04 32 29.3 u B38
2012-08-09 20:09:29 C 15 30 21.43 +04 32 24.6 u 160
2012-08-09 20:12:40 C 15 30 21.64 +04 32 17.6 u 160
2012-08-09 20:15:50 C 15 30 21.86 +04 32 11.0 u 160
2012-08-11 02:55:40 C 15 32 47.38 +03 23 31.5 u H21
2012-08-11 03:00:04 C 15 32 47.70 +03 23 21.2 u H21
2012-08-11 03:04:26 C 15 32 48.03 +03 23 11.0 u H21
2012-08-11 03:08:49 C 15 32 48.34 +03 23 00.8 u H21
2012-08-11 03:13:11 C 15 32 48.66 +03 22 50.5 u H21
2012-08-11 20:11:51 C 15 34 15.52 +02 42 13.0 u 160
2012-08-11 20:14:59 C 15 34 15.75 +02 42 05.4 u 160
2012-08-11 20:18:07 C 15 34 15.99 +02 41 57.8 u 160
2012-08-13 00:42:38 C 15 36 51.40 +01 29 43.1 u I15
2012-08-13 00:45:50 C 15 36 51.69 +01 29 34.4 u I15
2012-08-13 00:49:04 C 15 36 51.95 +01 29 26.2 u I15
2012-08-13 04:00:35 C 15 37 09.44 +01 21 04.6 r 703
2012-08-13 04:07:57 C 15 37 10.09 +01 20 45.3 r 703
2012-08-13 04:15:13 C 15 37 10.74 +01 20 26.1 r 703
2012-08-13 04:23:07 C 15 37 11.38 +01 20 04.9 r 703
2012-08-15 19:27:46 C 15 43 52.75 -01 45 00.8 u A81
2012-08-15 19:33:44 C 15 43 53.36 -01 45 20.0 u A81
2012-08-15 19:39:41 C 15 43 54.00 -01 45 39.2 u A81
2012-08-20 19:14:37 C 16 01 14.84 -09 30 39.3 u B38
2012-08-20 19:20:02 C 16 01 15.71 -09 31 04.2 u B38
2012-08-20 19:24:51 C 16 01 16.51 -09 31 26.6 u B38
2012-08-20 19:30:13 C 16 01 17.39 -09 31 51.7 u B38
2012-08-20 19:35:21 C 16 01 18.26 -09 32 15.4 u B38
2012-08-21 19:01:40 C 16 05 43.43 -11 26 04.9 u B38
2012-08-21 19:05:13 C 16 05 44.10 -11 26 22.7 u B38
2012-08-21 19:09:15 C 16 05 44.82 -11 26 43.5 u B38
2012-08-21 19:17:51 C 16 05 46.37 -11 27 26.7 u B38
2012-08-21 19:21:57 C 16 05 47.13 -11 27 47.0 u B38
2012-08-30 00:45:45 C 17 09 20.09 -33 52 24.5 u 807
2012-08-30 00:52:32 C 17 09 23.33 -33 53 21.3 u 807
2012-08-30 00:58:56 C 17 09 26.42 -33 54 14.7 u 807
2012-09-15 23:57:57 C 23 38 02.46 -54 42 58.9 u 807
2012-09-16 00:12:39 C 23 38 10.78 -54 42 20.6 u 807
2012-09-16 00:18:37 C 23 38 14.16 -54 42 05.0 u 807
2012-09-16 00:27:00 C 23 38 18.90 -54 41 42.9 u 807
2012-10-13 14:24:24 C 01 28 10.99 -32 25 29.4 r E12
2012-10-13 14:41:49 C 01 28 11.38 -32 25 05.7 r E12
2012-10-13 14:59:17 C 01 28 11.80 -32 24 42.2 r E12
2012-10-13 15:17:06 C 01 28 12.20 -32 24 18.0 r E12
2012-10-16 08:41:51 C 01 30 07.06 -30 58 43.9 u 807
2012-10-16 08:47:54 C 01 30 07.21 -30 58 35.7 u 807