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
2003-04-24 04:31:03 C 11 52 13.60 +56 59 56.4 18.4 c 704
2003-04-24 04:48:28 C 11 52 10.83 +56 59 41.4 18.9 c 704
2003-04-24 05:07:20 C 11 52 07.91 +56 59 24.7 18.9 c 704
2003-04-24 05:25:55 C 11 52 04.91 +56 59 06.9 18.9 c 704
2003-04-24 05:43:12 C 11 52 02.16 +56 58 52.0 18.6 c 704
2003-04-24 06:21:55 C 11 51 56.17 +56 58 15.8 c 926
2003-04-24 06:27:40 C 11 51 55.35 +56 58 11.4 c 926
2003-04-25 03:14:40 C 11 48 47.50 +56 39 00.3 18.8 c 704
2003-04-25 03:32:03 C 11 48 44.93 +56 38 42.4 19.1 c 704
2003-04-25 03:49:25 C 11 48 42.23 +56 38 26.7 18.7 c 704
2003-04-25 04:06:47 C 11 48 39.57 +56 38 10.5 18.9 c 704
2003-04-25 04:24:14 C 11 48 36.84 +56 37 54.4 19.1 c 704
2003-04-25 21:51:31 C 11 46 02.68 +56 21 08.2 c 176
2003-04-25 21:56:39 C 11 46 01.92 +56 21 03.1 c 176
2003-04-25 22:01:30 C 11 46 01.20 +56 20 58.3 c 176
2003-04-25 22:05:51 C 11 46 00.55 +56 20 54.0 c 176
2003-04-25 22:11:30 C 11 45 59.71 +56 20 48.4 c 176
2003-04-25 22:20:13 C 11 45 58.42 +56 20 39.9 c 176
2003-04-26 03:12:45 C 11 45 16.86 +56 15 53.9 18.4 c 704
2003-04-26 03:29:58 C 11 45 14.22 +56 15 37.6 18.8 c 704
2003-04-26 03:47:29 C 11 45 11.66 +56 15 20.5 19.0 c 704
2003-04-26 04:04:49 C 11 45 09.11 +56 15 04.0 18.9 c 704
2003-04-26 04:22:14 C 11 45 06.50 +56 14 47.3 18.9 c 704
2003-04-26 04:32:11 C 11 45 04.84 +56 14 36.7 c 446
2003-04-26 05:22:31 C 11 44 57.42 +56 13 47.2 c 446
2003-04-26 22:29:05 C 11 42 32.00 +55 56 36.7 d 170
2003-04-26 22:31:42 C 11 42 31.61 +55 56 34.0 d 170
2003-04-26 22:34:20 C 11 42 31.24 +55 56 31.1 d 170
2003-04-26 22:36:58 C 11 42 30.87 +55 56 28.4 d 170
2003-04-26 22:39:36 C 11 42 30.48 +55 56 25.6 d 170
2003-04-27 06:08:19 C 11 41 27.85 +55 48 47.3 c 926
2003-04-27 06:13:57 C 11 41 27.24 +55 48 43.5 c 926
2003-04-27 06:19:28 C 11 41 26.53 +55 48 37.6 c 926
2003-04-28 07:21:31 C 11 38 02.62 +55 22 20.5 c 926
2003-04-28 07:27:27 C 11 38 01.99 +55 22 15.1 c 926
2003-04-28 07:33:42 C 11 38 01.14 +55 22 08.0 c 926
2003-04-29 00:44:49 C 11 35 46.18 +55 03 28.3 o J95
2003-04-29 00:52:19 C 11 35 45.24 +55 03 19.9 o J95
2003-04-29 01:00:00 C 11 35 44.21 +55 03 11.1 o J95
2003-05-05 04:55:01 C 11 18 58.99 +52 06 23.0 c 785
2003-05-05 05:29:21 C 11 18 55.66 +52 05 38.1 c 785
2003-05-05 06:53:21 C 11 18 47.33 +52 03 45.0 c 785
2003-05-05 20:16:09 C 11 17 30.79 +51 46 30.5 d 118
2003-05-05 20:18:16 C 11 17 30.62 +51 46 27.9 d 118
2003-05-05 20:22:12 C 11 17 30.24 +51 46 23.0 d 118
2003-05-06 04:20:41 C 11 16 45.44 +51 36 01.0 c 926
2003-05-06 04:25:47 C 11 16 44.90 +51 35 54.4 c 926
2003-05-06 04:30:55 C 11 16 44.41 +51 35 47.9 c 926
2003-05-06 04:36:01 C 11 16 43.89 +51 35 40.9 c 926
2003-05-06 04:41:07 C 11 16 43.37 +51 35 34.3 c 926