2012 HJ31

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5889347428 ± 2.00e+00
Semi-major axis (a)2.4061306296 AU ± 3.00e+00
Inclination (i)5.67713635° ± 4.00e+00
Long. of Asc. Node (Ω)223.07620722° ± 5.00e+00
Arg. of Perihelion (ω)312.50507289° ± 6.00e+00
Mean Anomaly (M)233.93338874° ± 9.54e-01
Mean Motion (n)0.2640540300°/day ± 4.94e-01
Perihelion dist (q)0.98905730 AU ± 4.97e+00
Aphelion dist (Q)3.82344390 AU ± 6.77e+00
Orbital Period3.73259850 yr ± 6.98e+00
Physical Parameters
H (abs. magnitude)24.53
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.285″
Uncertainty3
Orbit TypeApollo
MOID0.044440 AU
Observations Used25
Oppositions1
Arc Total2012-2012
First Observation Used
Last Observation Used2012-05-12
Observations (25)
Date Type RA Dec Mag Band Observatory
2012-04-28 06:49:45 C 14 17 58.20 -19 42 59.4 r G96
2012-04-28 07:09:28 C 14 18 03.42 -19 42 19.8 r G96
2012-04-28 07:19:30 C 14 18 06.08 -19 41 59.6 r G96
2012-04-28 08:28:42 C 14 18 24.36 -19 39 38.6 o 291
2012-04-28 08:30:54 C 14 18 24.93 -19 39 34.2 o 291
2012-04-28 08:33:05 C 14 18 25.50 -19 39 29.9 o 291
2012-04-29 06:58:25 C 14 24 31.62 -18 56 00.6 o 291
2012-04-29 06:59:41 C 14 24 31.96 -18 55 58.6 o 291
2012-04-29 07:00:55 C 14 24 32.21 -18 55 56.2 o 291
2012-05-01 05:37:18 C 14 35 28.93 -17 34 28.5 o 291
2012-05-01 05:38:33 C 14 35 29.16 -17 34 26.8 o 291
2012-05-01 05:39:48 C 14 35 29.44 -17 34 24.5 o 291
2012-05-02 06:19:21 C 14 40 28.17 -16 55 53.4 o 291
2012-05-02 06:22:33 C 14 40 28.76 -16 55 49.4 o 291
2012-05-02 06:25:46 C 14 40 29.28 -16 55 44.3 o 291
2012-05-03 04:28:33 C 14 44 32.71 -16 22 40.2 o 807
2012-05-03 04:36:14 C 14 44 33.96 -16 22 29.6 o 807
2012-05-03 04:39:47 C 14 44 35.55 -16 23 35.4 o H21
2012-05-03 04:53:29 C 14 44 37.75 -16 23 16.3 o H21
2012-05-03 04:58:14 C 14 44 37.45 -16 21 58.2 o 807
2012-05-03 05:07:20 C 14 44 38.87 -16 21 45.5 o 807
2012-05-03 05:08:14 C 14 44 40.14 -16 22 56.2 o H21
2012-05-03 05:16:20 C 14 44 40.29 -16 21 33.2 o 807
2012-05-12 06:04:50 C 15 11 19.94 -12 44 00.5 V G96
2012-05-12 06:14:46 C 15 11 20.67 -12 43 53.7 V G96