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
2001-04-29 08:36:15 C 15 19 31.28 -04 08 15.9 673
2001-04-29 08:36:24 C 15 19 31.18 -04 08 15.4 926
2001-04-29 22:56:52 C 15 18 38.19 -04 08 12.4 c 046
2001-04-29 23:00:44 C 15 18 37.93 -04 08 12.3 c 046
2001-04-29 23:02:48 C 15 18 37.88 -04 08 11.8 c 046
2001-04-29 23:04:47 C 15 18 37.70 -04 08 11.7 c 046
2001-04-30 08:26:55 C 15 18 02.28 -04 08 10.4 649
2001-04-30 08:28:41 C 15 18 02.34 -04 08 08.5 926
2001-04-30 08:32:26 C 15 18 02.09 -04 08 08.3 926
2001-04-30 08:36:09 C 15 18 01.83 -04 08 08.9 926
2001-04-30 08:47:50 C 15 18 00.90 -04 08 09.9 649
2001-04-30 09:06:46 C 15 17 59.64 -04 08 09.6 649
2001-05-14 23:11:36 C 14 53 36.66 -04 30 24.6 118
2001-05-14 23:13:20 C 14 53 36.57 -04 30 25.3 118
2001-05-14 23:16:29 C 14 53 36.34 -04 30 26.3 118
2001-05-20 22:59:49 C 14 43 10.94 -04 54 40.7 046
2001-05-20 23:02:23 C 14 43 10.74 -04 54 41.3 046
2001-05-20 23:04:24 C 14 43 10.57 -04 54 41.7 046
2001-05-27 08:19:31 C 14 32 42.78 -05 31 05.3 20.4 c 608
2001-05-27 08:35:18 C 14 32 41.68 -05 31 10.2 20.6 c 608
2001-05-27 08:50:59 C 14 32 40.65 -05 31 14.2 20.8 c 608
2001-05-30 07:10:40 C 14 28 15.53 -05 51 40.5 711
2001-05-30 07:52:01 C 14 28 12.95 -05 51 53.0 711
2001-06-15 04:09:59 C 14 10 35.48 -08 17 46.3 18.4 c 704
2001-06-15 04:46:48 C 14 10 34.20 -08 18 03.0 18.6 c 704
2001-06-15 05:05:05 C 14 10 33.53 -08 18 10.7 19.3 c 704
2001-06-15 05:23:20 C 14 10 32.99 -08 18 19.2 18.5 c 704
2003-03-30 09:11:44 C 14 07 19.54 +08 15 07.5 d 734
2003-03-30 09:33:07 C 14 07 18.74 +08 15 13.9 d 734
2003-04-08 10:33:56 C 13 55 38.35 +09 17 37.0 21.0 c 608
2003-04-08 10:49:21 C 13 55 37.39 +09 17 40.7 21.4 c 608
2003-04-08 11:05:47 C 13 55 36.40 +09 17 45.1 20.8 c 608
2003-04-27 03:58:24 C 13 27 13.878 +10 21 24.85 e 645
2003-04-27 04:03:24 C 13 27 13.552 +10 21 24.95 20.98 e 645
2005-04-03 22:08:15 C 12 29 33.07 +20 35 39.2 c 246
2005-04-03 22:11:23 C 12 29 32.87 +20 35 38.8 c 246
2005-04-03 22:14:06 C 12 29 32.73 +20 35 39.6 c 246
2005-04-03 22:16:03 C 12 29 32.58 +20 35 39.4 c 246
2005-04-03 22:18:16 C 12 29 32.49 +20 35 39.8 c 246
2005-04-03 22:21:12 C 12 29 32.37 +20 35 40.3 c 246
2005-04-03 22:23:51 C 12 29 32.18 +20 35 40.3 c 246
2005-05-04 10:47:28 C 11 55 44.94 +19 23 46.1 o F65
2005-05-04 10:49:23 C 11 55 44.88 +19 23 45.2 o F65
2005-05-04 10:51:18 C 11 55 44.86 +19 23 44.8 o F65
2007-02-16 09:19:39 C 12 06 03.63 +24 12 14.8 r 703
2007-02-16 09:32:08 C 12 06 03.13 +24 12 20.1 r 703
2007-02-16 09:44:33 C 12 06 02.55 +24 12 30.4 r 703
2007-02-16 09:57:00 C 12 06 02.01 +24 12 35.2 r 703
2007-04-10 03:36:05 C 10 58 15.50 +28 41 10.6 21.0 o H55
2007-04-10 03:41:29 C 10 58 15.33 +28 41 09.4 21.2 o H55