154555 (2003 HA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5802800458 ± 6.63e-09
Semi-major axis (a)1.1845663341 AU ± 4.99e-10
Inclination (i)36.82274427° ± 3.96e-07
Long. of Asc. Node (Ω)53.47683415° ± 4.81e-07
Arg. of Perihelion (ω)277.13649613° ± 7.76e-07
Mean Anomaly (M)94.60501063° ± 2.58e-06
Mean Motion (n)0.7644924446°/day ± 4.83e-10
Perihelion dist (q)0.49718613 AU ± 7.86e-09
Aphelion dist (Q)1.87194654 AU ± 7.90e-09
Orbital Period1.28925575 yr ± 8.15e-10
Physical Parameters
H (abs. magnitude)16.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.018″
Uncertainty0
Orbit TypeApollo
MOID0.116226 AU
Observations Used1458
Gaia Obs Used227
Oppositions3
Arc Total2003-2017
First Observation Used2003-03-07
Last Observation Used2026-01-09
Observations (1603)
Date Type RA Dec Mag Band Observatory
2016-05-07 21:52:31 C 11 40 57.84 +55 31 32.4 q 168
2016-05-08 05:13:22 C 11 37 13.26 +55 19 28.7 q 703
2016-05-08 05:20:06 C 11 37 09.70 +55 19 16.6 q 703
2016-05-08 05:26:50 C 11 37 06.21 +55 19 04.8 q 703
2016-05-08 05:33:34 C 11 37 02.71 +55 18 53.2 q 703
2016-05-08 21:34:46 C 11 28 53.49 +54 49 29.1 q 168
2016-05-08 21:39:36 C 11 28 50.98 +54 49 19.3 q 168
2016-05-08 22:15:31 C 11 28 32.74 +54 48 09.2 q 168
2016-05-08 22:18:02 C 11 28 31.46 +54 48 03.8 q 168
2016-05-10 19:17:11 C 11 06 07.25 +53 11 18.9 q 168
2016-05-10 19:20:41 C 11 06 05.51 +53 11 10.2 q 168
2016-05-10 20:07:36 C 11 05 42.44 +53 09 15.8 q 168
2016-05-10 20:11:11 C 11 05 40.69 +53 09 07.0 q 168
2016-05-12 00:42:10 C 10 51 58.23 +51 56 35.4 q I15
2016-05-12 00:44:44 C 10 51 56.94 +51 56 28.5 q I15
2016-05-12 00:47:18 C 10 51 55.78 +51 56 21.7 q I15
2016-05-13 01:54:30 C 10 40 12.19 +50 45 28.2 q H45
2016-05-13 01:55:27 C 10 40 11.82 +50 45 25.5 q H45
2016-05-13 01:56:47 C 10 40 11.16 +50 45 21.9 q H45
2016-05-13 01:57:44 C 10 40 10.74 +50 45 19.0 q H45
2016-05-13 01:59:03 C 10 40 10.12 +50 45 15.2 q H45
2016-05-13 02:00:21 C 10 40 09.48 +50 45 10.9 q H45
2016-05-14 21:34:07 C 10 20 43.00 +48 27 45.2 q K14
2016-05-14 21:40:37 C 10 20 40.23 +48 27 23.4 q K14
2016-05-14 21:46:21 C 10 20 37.71 +48 27 03.7 q K14
2016-05-15 06:12:37 C 10 17 01.40 +47 58 43.1 L T05
2016-05-15 06:27:09 C 10 16 55.03 +47 57 53.3 L T05
2016-05-15 06:54:06 C 10 16 43.31 +47 56 19.7 L T05
2016-05-15 07:01:03 C 10 16 40.26 +47 55 56.4 L T05
2016-05-19 21:38:13 C 09 33 33.50 +40 51 29.8 q C77
2016-05-19 21:46:31 C 09 33 30.54 +40 50 55.2 q C77
2016-05-19 21:55:48 C 09 33 27.15 +40 50 15.1 q C77
2016-05-21 19:15:06 C 09 17 59.64 +37 36 31.5 q 089
2016-05-21 19:25:16 C 09 17 56.30 +37 35 46.5 q 089
2016-05-21 19:28:35 C 09 17 55.17 +37 35 31.5 q 089
2016-05-21 19:31:55 C 09 17 54.04 +37 35 17.5 q 089
2016-05-21 19:35:15 C 09 17 52.99 +37 35 02.7 q 089
2016-05-21 19:38:35 C 09 17 51.87 +37 34 47.4 q 089
2016-05-21 19:41:55 C 09 17 50.78 +37 34 32.8 q 089
2016-05-21 19:45:15 C 09 17 49.67 +37 34 18.0 q 089
2016-05-22 03:21:35 C 09 15 20.77 +37 01 07.6 q H45
2016-05-22 03:22:43 C 09 15 20.38 +37 01 02.5 q H45
2016-05-22 03:23:49 C 09 15 20.06 +37 00 57.6 q H45
2016-05-22 03:25:22 C 09 15 19.52 +37 00 50.9 q H45
2016-05-22 03:26:34 C 09 15 19.12 +37 00 45.5 q H45
2016-05-22 03:27:31 C 09 15 18.82 +37 00 41.0 q H45
2016-05-23 02:32:40 C 09 07 58.80 +35 18 40.5 q H45
2016-05-23 02:33:43 C 09 07 58.46 +35 18 36.5 q H45
2016-05-23 02:34:45 C 09 07 58.14 +35 18 31.5 q H45
2016-05-23 02:36:15 C 09 07 57.68 +35 18 24.5 q H45