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
2014-09-22 05:14:23 C 04 17 58.66 -18 56 16.5 o 844
2014-09-22 05:24:19 C 04 17 58.97 -18 56 12.3 o 844
2014-09-22 05:39:55 C 04 17 59.40 -18 56 04.5 o 844
2014-10-07 12:52:05 C 04 22 21.358 -15 14 17.85 L F51
2014-10-07 13:09:46 C 04 22 21.021 -15 14 04.80 L F51
2014-10-07 13:27:29 C 04 22 20.705 -15 13 52.22 L F51
2014-10-07 13:45:12 C 04 22 20.375 -15 13 39.32 L F51
2014-10-09 22:03:04 C 04 21 30.26 -14 31 27.7 o C41
2014-10-09 22:06:22 C 04 21 30.04 -14 31 24.4 o C41
2014-10-09 23:11:07 C 04 21 28.67 -14 30 35.9 o C41
2014-10-09 23:12:46 C 04 21 28.59 -14 30 35.0 o C41
2014-10-09 23:14:26 C 04 21 28.54 -14 30 33.4 o C41
2014-10-13 08:36:04 C 04 19 31.71 -13 24 35.3 t G52
2014-10-13 08:38:21 C 04 19 31.65 -13 24 33.5 t G52
2014-10-13 08:40:37 C 04 19 31.56 -13 24 31.9 t G52
2014-10-13 08:42:51 C 04 19 31.48 -13 24 29.6 t G52
2014-10-21 11:41:19 C 04 11 27.38 -10 21 19.4 q 703
2014-10-21 11:48:33 C 04 11 26.96 -10 21 12.0 q 703
2014-10-21 11:55:49 C 04 11 26.56 -10 21 04.5 q 703
2014-10-21 12:03:04 C 04 11 26.13 -10 20 57.0 q 703
2014-10-23 01:29:16 C 04 09 24.07 -09 41 32.8 q 160
2014-10-23 01:31:05 C 04 09 23.91 -09 41 31.0 q 160
2014-10-23 01:34:25 C 04 09 23.77 -09 41 26.8 q 160
2014-10-23 07:34:01 C 04 09 03.02 -09 34 30.2 u 807
2014-10-23 07:37:22 C 04 09 02.80 -09 34 26.5 u 807
2014-10-23 07:40:20 C 04 09 02.64 -09 34 24.4 u 807
2014-10-23 07:43:40 C 04 09 02.41 -09 34 19.7 u 807
2014-10-23 07:47:36 C 04 09 03.07 -09 34 42.5 R G45
2014-10-23 07:47:48 C 04 09 02.14 -09 34 15.4 u 807
2014-10-23 07:51:11 C 04 09 01.92 -09 34 11.6 u 807
2014-10-23 07:54:33 C 04 09 01.70 -09 34 07.9 u 807
2014-10-23 07:57:54 C 04 09 01.49 -09 34 04.3 u 807
2014-10-23 08:05:21 C 04 09 01.93 -09 34 23.1 R G45
2014-10-23 08:22:37 C 04 09 00.84 -09 34 04.9 R G45
2014-10-23 08:39:10 C 04 08 59.80 -09 33 46.6 R G45
2014-10-23 08:55:20 C 04 08 58.78 -09 33 29.4 R G45
2014-10-24 01:08:50 C 04 08 02.02 -09 15 53.2 t 130
2014-10-24 01:10:29 C 04 08 01.90 -09 15 51.6 t 130
2014-10-24 01:12:08 C 04 08 01.83 -09 15 50.0 t 130
2014-10-24 01:13:47 C 04 08 01.70 -09 15 48.0 t 130
2014-10-24 07:55:50 C 04 07 38.22 -09 08 21.9 R G45
2014-10-24 08:13:32 C 04 07 37.04 -09 08 02.6 R G45
2014-10-24 08:30:40 C 04 07 35.91 -09 07 43.7 R G45
2014-10-24 08:48:11 C 04 07 34.76 -09 07 24.2 R G45
2014-10-25 00:10:02 C 04 06 39.53 -08 50 20.9 q I89
2014-10-25 00:25:41 C 04 06 38.47 -08 50 03.5 q I89
2014-10-25 00:34:57 C 04 06 37.85 -08 49 53.4 q I89
2014-10-25 00:50:56 C 04 06 36.80 -08 49 35.5 q I89
2014-10-25 01:01:24 C 04 06 36.09 -08 49 23.6 q I89
2014-10-25 01:41:30 C 04 06 33.07 -08 48 40.6 q 160