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
2025-03-17 12:22:35 C 15 38 20.688 +42 00 23.36 V T05
2025-03-17 12:43:56 C 15 38 20.256 +42 00 45.04 V T05
2025-03-17 12:54:46 C 15 38 19.872 +42 00 57.89 V T05
2025-03-18 11:29:44 C 15 37 44.692 +42 24 54.11 V G96
2025-03-18 11:38:37 C 15 37 44.414 +42 25 03.50 V G96
2025-03-18 11:47:10 C 15 37 44.144 +42 25 12.68 V G96
2025-03-18 11:55:09 C 15 37 43.892 +42 25 21.29 V G96
2025-03-18 13:24:06 C 15 37 41.771 +42 26 58.12 X F51
2025-03-18 13:38:59 C 15 37 41.295 +42 27 13.97 X F51
2025-03-18 13:54:00 C 15 37 40.829 +42 27 30.14 X F51
2025-03-18 14:09:06 C 15 37 40.355 +42 27 46.31 X F51
2025-03-18 14:33:20 C 15 37 39.582 +42 28 12.19 X F52
2025-03-18 14:47:43 C 15 37 39.127 +42 28 27.50 X F52
2025-03-18 15:01:59 C 15 37 38.662 +42 28 42.69 X F52
2025-03-19 10:06:12 C 15 37 05.178 +42 49 08.80 V G96
2025-03-19 10:13:47 C 15 37 04.919 +42 49 17.11 V G96
2025-03-19 10:21:23 C 15 37 04.660 +42 49 25.28 V G96
2025-03-19 10:28:58 C 15 37 04.390 +42 49 33.60 V G96
2025-03-20 11:19:05 C 15 36 14.436 +43 16 28.63 V 703
2025-03-20 11:23:16 C 15 36 14.234 +43 16 34.25 V 703
2025-03-20 11:27:36 C 15 36 14.026 +43 16 39.61 V 703
2025-03-20 11:31:50 C 15 36 13.766 +43 16 44.36 V 703
2025-03-20 21:13:16 C 15 35 53.58 +43 27 12.6 q L04
2025-03-20 21:26:54 C 15 35 53.06 +43 27 27.7 q L04
2025-03-20 21:40:24 C 15 35 52.54 +43 27 43.0 q L04
2025-03-22 10:54:34 C 15 34 20.993 +44 08 53.52 V 703
2025-03-22 10:57:43 C 15 34 20.896 +44 08 57.26 V 703
2025-03-22 11:00:51 C 15 34 20.672 +44 09 00.72 V 703
2025-03-22 11:03:59 C 15 34 20.536 +44 09 03.53 V 703
2025-03-23 12:02:38 C 15 33 11.138 +44 36 57.89 V T08
2025-03-23 12:15:28 C 15 33 10.430 +44 37 12.50 V T08
2025-03-23 12:51:07 C 15 33 08.539 +44 37 52.93 V T08
2025-03-23 12:53:49 C 15 33 08.410 +44 37 56.28 V T08
2025-03-24 10:25:27 C 15 32 01.838 +45 02 06.97 V 703
2025-03-24 10:28:40 C 15 32 01.590 +45 02 10.36 V 703
2025-03-24 10:31:50 C 15 32 01.396 +45 02 13.16 V 703
2025-03-24 10:35:00 C 15 32 01.230 +45 02 17.23 V 703
2025-03-25 12:26:25 C 15 30 33.962 +45 31 35.54 V T05
2025-03-25 12:29:03 C 15 30 33.830 +45 31 38.78 V T05
2025-03-25 12:33:38 C 15 30 33.521 +45 31 44.18 V T05
2025-03-25 12:41:04 C 15 30 33.070 +45 31 52.86 V T05
2025-03-26 08:21:26 C 15 29 20.828 +45 54 12.89 V 703
2025-03-26 08:24:40 C 15 29 20.522 +45 54 17.14 V 703
2025-03-26 08:27:55 C 15 29 20.335 +45 54 21.17 V 703
2025-03-26 08:31:10 C 15 29 20.072 +45 54 25.45 V 703
2025-03-26 10:28:40 C 15 29 12.878 +45 56 40.09 V T05
2025-03-26 10:37:48 C 15 29 12.228 +45 56 50.53 V T05
2025-03-26 10:44:29 C 15 29 11.789 +45 56 58.31 V T05
2025-03-26 10:47:59 C 15 29 11.580 +45 57 02.16 V T05
2025-03-26 10:53:57 C 15 29 11.174 +45 57 09.11 V T05