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
2015-02-14 02:48:46 C 04 00 45.34 +29 01 36.7 R G45
2015-02-14 03:00:49 C 04 00 46.22 +29 01 39.7 R G45
2015-02-14 03:16:03 C 04 00 47.37 +29 01 44.8 R G45
2015-02-14 03:21:55 C 04 00 47.82 +29 01 46.1 R G45
2015-02-14 03:27:47 C 04 00 48.24 +29 01 48.8 R G45
2016-05-26 07:57:24 C 17 07 56.07 -21 46 10.1 o 926
2016-05-26 08:14:37 C 17 07 55.01 -21 46 21.4 o 926
2016-05-26 08:31:41 C 17 07 53.94 -21 46 32.3 o 926
2016-05-28 07:00:28 C 17 05 05.53 -22 17 25.3 u 926
2016-05-28 07:22:11 C 17 05 04.06 -22 17 39.7 u 926
2016-05-28 07:44:59 C 17 05 02.53 -22 17 55.3 u 926
2016-05-29 07:45:16 C 17 03 30.39 -22 34 15.4 R G45
2016-05-29 07:45:22 C 17 03 30.37 -22 34 15.0 R G45
2016-05-29 07:52:25 C 17 03 30.00 -22 34 21.4 R G45
2016-05-29 07:52:30 C 17 03 29.99 -22 34 21.4 R G45
2016-05-29 07:58:54 C 17 03 29.53 -22 34 25.7 R G45
2016-05-29 08:05:51 C 17 03 29.08 -22 34 30.5 R G45
2016-05-29 08:13:37 C 17 03 28.53 -22 34 36.1 R G45
2016-05-29 08:13:42 C 17 03 28.53 -22 34 36.2 R G45
2016-05-29 08:20:21 C 17 03 28.04 -22 34 40.3 R G45
2016-05-29 08:20:27 C 17 03 28.04 -22 34 40.6 R G45
2016-06-04 07:38:58 C 16 53 17.27 -24 17 03.6 R G45
2016-06-04 07:46:01 C 16 53 16.75 -24 17 08.3 R G45
2016-06-04 07:59:38 C 16 53 15.65 -24 17 18.9 R G45
2016-06-04 08:06:41 C 16 53 15.08 -24 17 23.6 R G45
2016-06-09 05:29:10 C 16 43 51.38 -25 45 36.5 q H15
2016-06-09 05:43:54 C 16 43 50.11 -25 45 46.7 q H15
2016-06-09 05:57:40 C 16 43 48.87 -25 45 57.1 q H15
2016-07-09 19:27:38 C 15 48 59.96 -34 27 36.3 o K95
2016-07-09 19:32:51 C 15 48 59.77 -34 27 39.5 o K95
2016-07-28 05:49:31 C 15 42 30.089 -38 44 35.54 L F51
2016-07-28 05:55:58 C 15 42 30.144 -38 44 39.25 L F51
2016-07-31 06:01:22 C 15 43 58.489 -39 24 19.83 L F51
2016-07-31 06:09:34 C 15 43 58.642 -39 24 24.34 L F51
2017-01-29 02:52:59 C 01 43 55.71 +10 06 42.9 q G96
2017-01-29 02:59:09 C 01 43 56.37 +10 06 48.8 q G96
2017-01-29 03:05:15 C 01 43 56.96 +10 06 55.0 q G96
2017-01-29 03:11:22 C 01 43 57.68 +10 07 00.5 q G96
2018-03-29 08:20:56 C 15 24 30.47 -02 26 41.9 U G96
2018-03-29 08:28:31 C 15 24 30.39 -02 26 40.7 U G96
2018-03-29 08:36:05 C 15 24 30.23 -02 26 39.7 U G96
2018-03-29 08:43:40 C 15 24 30.13 -02 26 38.6 U G96
2018-04-11 10:18:51 C 15 16 07.24 -01 40 39.5 U 703
2018-04-11 10:26:31 C 15 16 06.95 -01 40 38.1 U 703
2018-04-11 10:34:12 C 15 16 06.54 -01 40 37.4 U 703
2018-04-14 09:57:22 C 15 13 07.63 -01 30 38.5 U 703
2018-04-14 10:05:01 C 15 13 07.26 -01 30 37.5 U 703
2018-04-14 10:12:41 C 15 13 06.91 -01 30 36.1 U 703
2018-04-14 10:20:21 C 15 13 06.57 -01 30 35.6 U 703
2018-04-15 09:37:49 C 15 12 03.16 -01 27 27.4 U G96