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
2012-12-29 09:28:41 C 06 55 21.58 +37 02 34.4 q 448
2012-12-29 09:35:59 C 06 55 20.96 +37 02 38.4 q 448
2012-12-29 09:43:14 C 06 55 20.31 +37 02 42.4 q 448
2012-12-29 09:50:30 C 06 55 19.72 +37 02 46.3 q 448
2013-01-09 06:22:28 C 06 34 14.03 +38 42 07.1 18.7 c 704
2013-01-09 06:41:06 C 06 34 12.62 +38 42 12.7 18.7 c 704
2013-01-09 06:59:38 C 06 34 11.14 +38 42 17.9 18.9 c 704
2013-01-09 07:18:28 C 06 34 09.70 +38 42 22.4 19.0 c 704
2013-01-09 07:37:43 C 06 34 08.19 +38 42 28.0 18.8 c 704
2013-01-10 10:32:50 C 06 32 09.131 +38 49 14.08 L F51
2013-01-10 10:49:42 C 06 32 07.829 +38 49 17.99 L F51
2013-01-13 02:49:02 C 06 27 39.41 +39 02 48.8 o 926
2013-01-13 03:08:56 C 06 27 37.98 +39 02 53.2 o 926
2013-01-13 03:29:07 C 06 27 36.54 +39 02 56.5 o 926
2013-01-16 10:04:16 C 06 22 34.849 +39 15 15.28 L F51
2013-01-16 10:21:04 C 06 22 33.781 +39 15 17.35 L F51
2013-01-20 02:13:47 C 06 17 41.27 +39 23 48.4 q H21
2013-01-20 02:19:17 C 06 17 41.01 +39 23 49.2 q H21
2013-01-20 02:24:57 C 06 17 40.70 +39 23 49.4 q H21
2013-01-20 02:30:37 C 06 17 40.40 +39 23 49.6 q H21
2014-04-10 14:22:26 C 19 24 46.635 -21 32 43.13 L F51
2014-04-10 14:29:29 C 19 24 47.410 -21 32 43.90 L F51
2014-04-10 14:36:33 C 19 24 48.182 -21 32 45.04 L F51
2014-04-10 14:43:36 C 19 24 48.954 -21 32 45.95 L F51
2014-07-20 06:07:37 C 01 25 04.92 -26 42 21.2 q 844
2014-07-20 06:08:09 C 01 25 04.96 -26 42 22.3 q 844
2014-07-20 06:08:42 C 01 25 05.14 -26 42 21.9 q 844
2014-07-20 06:09:16 C 01 25 05.23 -26 42 21.7 q 844
2014-07-20 06:09:50 C 01 25 05.31 -26 42 22.0 q 844
2014-08-08 07:59:26 C 02 38 32.86 -25 27 57.5 q W88
2014-08-08 08:14:19 C 02 38 34.95 -25 27 54.4 q W88
2014-08-08 08:29:23 C 02 38 37.03 -25 27 50.5 q W88
2014-08-08 08:45:08 C 02 38 39.23 -25 27 47.2 q W88
2014-08-08 08:59:57 C 02 38 41.27 -25 27 43.6 q W88
2014-08-09 08:50:40 C 02 42 05.68 -25 21 51.9 q W88
2014-08-09 09:05:36 C 02 42 07.72 -25 21 48.4 q W88
2014-08-09 09:20:39 C 02 42 09.76 -25 21 45.0 q W88
2014-09-07 00:29:52 C 03 57 38.39 -21 38 51.2 o C41
2014-09-07 00:33:33 C 03 57 38.65 -21 38 50.5 o C41
2014-09-07 00:37:05 C 03 57 38.90 -21 38 49.3 o C41
2014-09-08 06:05:10 C 03 59 50.04 -21 26 42.8 r Y00
2014-09-08 06:20:51 C 03 59 51.12 -21 26 36.4 r Y00
2014-09-08 06:36:28 C 03 59 52.11 -21 26 30.8 r Y00
2014-09-19 01:19:40 C 04 14 58.82 -19 33 55.8 q 089
2014-09-19 01:22:18 C 04 14 58.95 -19 33 54.1 q 089
2014-09-19 01:24:55 C 04 14 58.98 -19 33 53.2 q 089
2014-09-19 01:27:32 C 04 14 59.10 -19 33 52.4 q 089
2014-09-19 01:30:10 C 04 14 59.21 -19 33 50.9 q 089
2014-09-19 01:35:24 C 04 14 59.40 -19 33 49.0 q 089
2014-09-19 01:38:01 C 04 14 59.53 -19 33 47.9 q 089