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
2022-02-03 09:55:08 C 13 06 53.04 +13 42 49.9 V G96
2022-02-27 08:40:33 C 12 58 47.73 +17 38 30.1 V G96
2022-02-27 08:48:03 C 12 58 47.43 +17 38 33.8 V G96
2022-02-27 08:55:31 C 12 58 47.17 +17 38 37.2 V G96
2022-02-27 09:02:57 C 12 58 46.91 +17 38 40.7 V G96
2022-02-27 11:14:23 C 12 58 42.523 +17 39 42.92 U F52
2022-02-27 11:32:49 C 12 58 41.853 +17 39 51.49 U F52
2022-02-27 12:09:57 C 12 58 40.514 +17 40 08.81 U F52
2022-03-02 09:52:08 C 12 56 07.524 +18 12 27.11 U F52
2022-03-02 09:53:03 C 12 56 07.493 +18 12 27.52 U F52
2022-03-02 10:12:31 C 12 56 06.703 +18 12 36.65 U F52
2022-03-02 10:13:25 C 12 56 06.668 +18 12 36.96 U F52
2022-03-02 10:32:50 C 12 56 05.873 +18 12 46.18 U F52
2022-03-02 10:33:45 C 12 56 05.840 +18 12 46.55 U F52
2022-03-02 10:53:58 C 12 56 05.011 +18 12 56.09 U F52
2022-03-04 08:37:14 C 12 54 13.74 +18 33 59.7 V 703
2022-03-04 08:52:13 C 12 54 13.11 +18 34 06.5 V 703
2022-03-04 08:59:42 C 12 54 12.81 +18 34 09.9 V 703
2022-03-24 01:19:15 C 12 28 50.74 +21 38 43.4 X C95
2022-03-24 01:51:08 C 12 28 48.79 +21 38 52.5 X C95
2022-04-05 07:36:44 C 12 10 52.001 +22 32 50.39 U I41
2022-04-05 08:29:19 C 12 10 48.809 +22 32 54.31 U I41
2022-04-05 08:59:51 C 12 10 46.949 +22 32 56.69 U I41
2022-04-07 08:27:48 C 12 08 02.129 +22 35 50.78 U I41
2022-04-07 08:36:16 C 12 08 01.589 +22 35 51.68 U I41
2022-04-08 07:07:16 C 12 06 45.499 +22 36 41.10 U F52
2022-04-08 07:26:38 C 12 06 44.375 +22 36 41.69 U F52
2022-04-08 07:45:58 C 12 06 43.248 +22 36 42.26 U F52
2022-04-27 05:49:18 C 11 46 30.338 +21 40 23.56 V G96
2022-04-27 05:57:30 C 11 46 30.068 +21 40 21.68 V G96
2022-04-27 06:05:42 C 11 46 29.788 +21 40 19.20 V G96
2022-04-27 06:13:55 C 11 46 29.514 +21 40 17.33 V G96
2022-05-25 04:37:00 C 11 40 30.979 +17 18 47.41 V G96
2022-05-25 04:45:13 C 11 40 31.004 +17 18 43.34 V G96
2022-05-25 04:53:26 C 11 40 31.091 +17 18 38.92 V G96
2022-05-25 05:01:40 C 11 40 31.195 +17 18 35.17 V G96
2023-10-16 14:47:50 C 10 07 48.435 +20 15 44.24 X F51
2023-10-16 14:55:16 C 10 07 49.027 +20 15 42.37 X F51
2023-10-16 15:02:40 C 10 07 49.616 +20 15 40.62 X F51
2023-12-17 13:50:58 C 11 44 45.023 +17 25 42.95 X F51
2023-12-17 14:09:19 C 11 44 45.805 +17 25 44.50 X F51
2023-12-17 14:27:41 C 11 44 46.581 +17 25 45.96 X F51
2023-12-17 14:46:05 C 11 44 47.372 +17 25 47.47 X F51
2024-02-18 06:54:23 C 11 48 20.372 +26 34 57.32 V G96
2024-02-18 07:01:46 C 11 48 20.020 +26 35 01.10 V G96
2024-02-18 07:09:11 C 11 48 19.660 +26 35 04.85 V G96
2024-02-18 07:16:35 C 11 48 19.292 +26 35 08.92 V G96
2024-03-02 13:03:52 C 11 30 30.850 +29 00 53.94 X F52
2024-03-02 13:20:49 C 11 30 29.775 +29 01 00.21 X F52
2024-03-02 13:37:51 C 11 30 28.681 +29 01 06.48 X F52