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
2018-04-15 09:45:12 C 15 12 02.80 -01 27 26.5 U G96
2018-04-15 09:52:37 C 15 12 02.44 -01 27 25.5 U G96
2018-04-15 10:00:02 C 15 12 02.07 -01 27 24.5 U G96
2018-04-18 09:46:54 C 15 08 31.35 -01 18 19.0 U 703
2018-04-18 09:54:31 C 15 08 31.00 -01 18 17.5 U 703
2018-04-18 10:02:09 C 15 08 30.61 -01 18 17.0 U 703
2018-04-18 10:09:46 C 15 08 30.20 -01 18 15.1 U 703
2018-04-21 10:24:42 C 15 04 36.55 -01 10 08.1 U 703
2018-04-21 10:47:33 C 15 04 35.21 -01 10 05.2 U 703
2018-04-23 07:52:33 C 15 01 59.80 -01 05 38.5 U G96
2018-04-23 07:59:58 C 15 01 59.33 -01 05 37.8 U G96
2018-04-23 08:07:23 C 15 01 58.86 -01 05 37.0 U G96
2018-04-23 08:14:49 C 15 01 58.43 -01 05 36.5 U G96
2018-05-05 07:55:31 C 14 43 08.03 -00 53 16.6 U 703
2018-05-05 08:03:02 C 14 43 07.45 -00 53 16.4 U 703
2018-05-05 08:10:33 C 14 43 06.83 -00 53 15.9 U 703
2018-05-05 08:18:03 C 14 43 06.27 -00 53 15.4 U 703
2018-05-12 15:20:55 C 14 30 44.43 -01 03 07.3 q D29
2018-05-12 15:43:50 C 14 30 42.74 -01 03 09.7 q D29
2018-05-12 16:06:44 C 14 30 41.07 -01 03 12.0 q D29
2018-05-15 07:34:16 C 14 26 15.65 -01 10 37.2 U 703
2018-05-15 07:41:49 C 14 26 15.02 -01 10 36.8 U 703
2018-05-15 07:49:21 C 14 26 14.44 -01 10 38.3 U 703
2018-05-15 07:56:53 C 14 26 13.89 -01 10 39.5 U 703
2018-05-16 06:40:10 C 14 24 40.49 -01 13 49.5 U G96
2018-05-16 06:47:38 C 14 24 39.96 -01 13 50.4 U G96
2018-05-16 07:00:07 C 14 24 39.07 -01 13 52.4 U G96
2018-05-16 07:07:33 C 14 24 38.55 -01 13 53.3 U G96
2018-05-16 07:39:34 C 14 24 36.26 -01 13 58.0 U 703
2018-05-16 07:47:23 C 14 24 35.76 -01 13 59.6 U 703
2018-05-16 07:55:11 C 14 24 35.18 -01 14 00.8 U 703
2018-05-16 08:03:01 C 14 24 34.63 -01 14 01.9 U 703
2018-05-20 07:02:49 C 14 18 15.00 -01 30 16.6 U 703
2018-05-20 07:10:25 C 14 18 14.48 -01 30 19.8 U 703
2018-05-20 07:18:02 C 14 18 13.98 -01 30 21.0 U 703
2018-05-20 07:25:38 C 14 18 13.44 -01 30 22.9 U 703
2018-06-04 06:56:02 C 13 58 49.922 -03 13 21.45 U F51
2018-06-04 07:13:08 C 13 58 49.168 -03 13 27.83 U F51
2018-06-04 07:30:12 C 13 58 48.415 -03 13 34.07 U F51
2018-06-04 07:42:07 C 13 58 47.52 -03 13 41.1 U 703
2018-06-04 07:47:19 C 13 58 47.665 -03 13 40.43 U F51
2018-06-04 08:07:26 C 13 58 46.46 -03 13 49.7 U 703
2018-06-06 07:03:47 C 13 56 55.63 -03 31 39.9 U 703
2018-06-06 07:11:31 C 13 56 55.37 -03 31 42.4 U 703
2018-06-06 07:19:15 C 13 56 55.03 -03 31 45.1 U 703
2018-06-06 07:26:58 C 13 56 54.79 -03 31 49.7 U 703
2018-06-06 13:36:17 C 13 56 41.30 -03 34 13.4 q D29
2018-06-06 13:56:39 C 13 56 40.53 -03 34 21.6 q D29
2018-06-06 14:17:00 C 13 56 39.71 -03 34 29.3 q D29
2018-06-15 13:29:07 C 13 50 37.77 -05 07 43.5 q D29