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
2025-04-28 09:52:18 C 12 55 55.958 +55 44 42.11 V T08
2025-04-28 10:00:16 C 12 55 53.304 +55 44 39.23 V T08
2025-04-28 10:18:14 C 12 55 47.371 +55 44 31.20 V T08
2025-04-28 22:13:54 B 12 51 56.069 +55 39 11.38 X K87
2025-04-28 22:15:29 B 12 51 55.464 +55 39 10.48 X K87
2025-04-28 22:17:36 B 12 51 54.818 +55 39 09.47 X K87
2025-04-29 01:58:57 C 12 50 43.83 +55 37 28.0 V W46
2025-04-29 02:12:21 C 12 50 39.41 +55 37 21.7 V W46
2025-04-29 02:25:59 C 12 50 34.90 +55 37 15.0 V W46
2025-04-29 08:00:59 C 12 48 44.464 +55 34 26.29 V 703
2025-04-29 08:04:23 C 12 48 43.340 +55 34 24.38 V 703
2025-04-29 08:07:47 C 12 48 42.206 +55 34 22.87 V 703
2025-04-29 08:11:11 C 12 48 41.080 +55 34 20.93 V 703
2025-04-29 20:43:56 B 12 44 37.332 +55 27 24.23 Z K35
2025-04-29 20:45:00 B 12 44 36.982 +55 27 23.65 Z K35
2025-04-29 20:46:05 B 12 44 36.679 +55 27 22.72 Z K35
2025-04-29 20:47:07 B 12 44 36.300 +55 27 22.39 Z K35
2025-04-29 23:10:40 B 12 43 48.08 +55 25 55.3 X L76
2025-04-29 23:15:54 B 12 43 46.34 +55 25 51.8 X L76
2025-04-29 23:21:09 B 12 43 44.62 +55 25 48.4 X L76
2025-04-29 23:26:23 B 12 43 42.88 +55 25 45.1 X L76
2025-04-29 23:31:37 B 12 43 41.17 +55 25 41.7 X L76
2025-04-29 23:36:52 B 12 43 39.43 +55 25 38.6 X L76
2025-04-30 22:20:18 C 12 36 14.78 +55 10 45.5 X C40
2025-04-30 22:24:42 C 12 36 13.34 +55 10 43.1 X C40
2025-04-30 22:29:08 C 12 36 11.89 +55 10 39.9 X C40
2025-04-30 22:33:32 C 12 36 10.43 +55 10 36.2 X C40
2025-04-30 22:37:57 C 12 36 08.97 +55 10 33.0 X C40
2025-04-30 22:42:22 C 12 36 07.50 +55 10 29.8 X C40
2025-04-30 22:46:47 C 12 36 06.05 +55 10 26.6 X C40
2025-04-30 22:51:11 C 12 36 04.60 +55 10 23.2 X C40
2025-04-30 22:55:25 C 12 36 03.19 +55 10 20.0 X C40
2025-04-30 22:57:50 B 12 36 02.40 +55 10 17.4 X L76
2025-04-30 22:59:28 C 12 36 01.85 +55 10 16.8 X C40
2025-04-30 23:03:31 C 12 36 00.51 +55 10 13.9 X C40
2025-04-30 23:07:34 C 12 35 59.20 +55 10 10.9 X C40
2025-04-30 23:08:20 B 12 35 58.94 +55 10 09.5 X L76
2025-04-30 23:18:50 B 12 35 55.50 +55 10 01.5 X L76
2025-05-01 00:22:07 B 12 35 35.450 +55 09 25.24 W J51
2025-05-01 00:35:59 B 12 35 30.830 +55 09 15.12 W J51
2025-05-01 00:49:56 B 12 35 26.126 +55 09 04.72 W J51
2025-05-01 03:38:56 C 12 34 32.574 +55 06 58.93 V I52
2025-05-01 03:41:55 C 12 34 31.573 +55 06 56.77 V I52
2025-05-01 03:44:53 C 12 34 30.598 +55 06 54.58 V I52
2025-05-01 03:47:52 C 12 34 29.593 +55 06 52.52 V I52
2025-05-02 08:18:50 C 12 25 11.326 +54 43 35.33 V T08
2025-05-02 08:23:28 C 12 25 09.782 +54 43 31.19 V T08
2025-05-02 08:32:04 C 12 25 06.895 +54 43 23.45 V T08
2025-05-02 08:49:22 C 12 25 01.135 +54 43 07.68 V T08
2025-05-02 23:34:37 C 12 20 13.819 +54 29 16.22 V R17