159533 (2001 HH31)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2888585292 ± 2.93e-09
Semi-major axis (a)1.6546236597 AU ± 2.13e-09
Inclination (i)12.85133130° ± 3.90e-07
Long. of Asc. Node (Ω)71.60731232° ± 3.59e-07
Arg. of Perihelion (ω)275.98680386° ± 1.04e-06
Mean Anomaly (M)100.70770514° ± 3.68e-06
Mean Motion (n)0.4630878974°/day ± 8.93e-10
Perihelion dist (q)1.17667150 AU ± 5.08e-09
Aphelion dist (Q)2.13257582 AU ± 5.57e-09
Orbital Period2.12837841 yr ± 4.11e-09
Physical Parameters
H (abs. magnitude)17.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.008″
Uncertainty0
Orbit TypeAmor
MOID0.290382 AU
Observations Used706
Gaia Obs Used90
Oppositions10
Arc Total1997-2016
First Observation Used1997-11-06
Last Observation Used2026-01-08
Observations (748)
Date Type RA Dec Mag Band Observatory
2012-11-26 10:07:58 C 07 42 23.83 +27 45 19.0 v H21
2012-11-26 10:14:32 C 07 42 23.94 +27 45 25.2 q 448
2012-11-28 11:51:19 C 07 41 18.691 +28 21 53.64 L F51
2012-11-28 11:56:05 C 07 41 18.558 +28 21 57.25 L F51
2012-12-01 09:42:17 C 07 39 16.92 +29 14 19.2 q H21
2012-12-01 09:47:45 C 07 39 16.79 +29 14 22.9 q H21
2012-12-01 09:53:08 C 07 39 16.58 +29 14 27.1 q H21
2012-12-01 09:58:31 C 07 39 16.38 +29 14 31.2 q H21
2012-12-04 10:44:32 C 07 36 33.89 +30 10 17.0 o 691
2012-12-04 11:10:01 C 07 36 32.76 +30 10 36.4 o 691
2012-12-04 11:35:28 C 07 36 31.61 +30 10 56.2 o 691
2012-12-06 03:21:24 C 07 34 47.22 +30 41 36.5 c A24
2012-12-06 03:22:26 C 07 34 47.11 +30 41 36.7 c A24
2012-12-06 03:23:29 C 07 34 47.08 +30 41 37.8 c A24
2012-12-06 03:24:31 C 07 34 47.01 +30 41 38.6 c A24
2012-12-06 03:44:54 C 07 34 46.03 +30 41 54.0 c A24
2012-12-06 04:09:06 C 07 34 44.85 +30 42 12.6 c A24
2012-12-06 04:28:48 C 07 34 43.93 +30 42 27.3 c A24
2012-12-06 04:29:50 C 07 34 43.87 +30 42 28.4 c A24
2012-12-06 04:30:52 C 07 34 43.76 +30 42 29.0 c A24
2012-12-06 04:31:54 C 07 34 43.76 +30 42 30.0 c A24
2012-12-10 03:33:44 C 07 29 50.16 +31 55 53.4 c A24
2012-12-10 03:35:47 C 07 29 49.97 +31 55 55.1 c A24
2012-12-10 03:55:54 C 07 29 48.87 +31 56 10.1 c A24
2012-12-10 04:19:18 C 07 29 47.39 +31 56 27.9 c A24
2012-12-10 04:38:43 C 07 29 46.34 +31 56 42.9 c A24
2012-12-10 04:40:48 C 07 29 46.19 +31 56 44.2 c A24
2012-12-11 04:13:24 C 07 28 24.32 +32 14 47.3 c A24
2012-12-11 04:14:27 C 07 28 24.19 +32 14 47.2 c A24
2012-12-11 04:15:29 C 07 28 24.12 +32 14 47.4 c A24
2012-12-11 04:16:32 C 07 28 24.10 +32 14 48.7 c A24
2012-12-12 02:44:54 C 07 27 02.85 +32 31 56.7 c A24
2012-12-12 02:45:56 C 07 27 02.78 +32 31 56.9 c A24
2012-12-12 02:46:58 C 07 27 02.78 +32 31 57.7 c A24
2012-12-12 02:48:01 C 07 27 02.67 +32 31 58.4 c A24
2012-12-12 03:49:51 C 07 26 58.69 +32 32 44.7 c A24
2012-12-12 03:50:53 C 07 26 58.64 +32 32 45.8 c A24
2012-12-12 03:51:55 C 07 26 58.54 +32 32 46.2 c A24
2012-12-12 03:52:57 C 07 26 58.49 +32 32 47.7 c A24
2012-12-12 07:45:27 C 07 26 44.79 +32 35 47.3 18.7 c 704
2012-12-12 08:04:56 C 07 26 43.53 +32 36 00.6 18.8 c 704
2012-12-12 08:24:58 C 07 26 42.19 +32 36 16.1 19.1 c 704
2012-12-12 08:44:08 C 07 26 40.95 +32 36 31.1 18.9 c 704
2012-12-12 09:03:23 C 07 26 39.65 +32 36 46.3 18.9 c 704
2012-12-21 07:29:35 C 07 11 21.69 +35 09 47.9 r 703
2012-12-21 07:39:31 C 07 11 20.86 +35 09 54.5 r 703
2012-12-21 07:49:29 C 07 11 20.07 +35 10 01.0 r 703
2012-12-21 07:59:29 C 07 11 19.32 +35 10 07.6 r 703
2012-12-22 12:10:51 C 07 09 04.200 +35 28 21.22 L F51
2012-12-22 12:28:12 C 07 09 02.738 +35 28 32.07 L F51