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
2003-03-07 09:13:46 C 14 44 52.966 +52 06 04.12 e 645
2003-03-07 09:18:46 C 14 44 52.674 +52 06 09.10 20.28 e 645
2003-03-10 10:43:54 C 14 40 19.046 +53 18 07.36 e 645
2003-03-10 10:48:54 C 14 40 18.684 +53 18 12.23 20.03 e 645
2003-04-21 05:44:01 C 12 03 36.16 +57 58 57.4 18.5 c 704
2003-04-21 05:59:43 C 12 03 33.46 +57 58 44.2 18.5 c 704
2003-04-21 06:48:22 C 12 03 25.01 +57 58 07.2 18.7 c 704
2003-04-21 19:40:41 C 12 01 17.42 +57 48 03.0 d 557
2003-04-21 19:42:42 C 12 01 17.04 +57 48 01.6 d 557
2003-04-21 19:44:43 C 12 01 16.76 +57 48 00.0 d 557
2003-04-21 21:25:42 C 12 00 59.94 +57 46 39.5 c 046
2003-04-21 21:28:59 C 12 00 59.38 +57 46 36.7 c 046
2003-04-21 21:29:51 C 12 00 59.33 +57 46 38.1 d 620
2003-04-21 21:30:23 C 12 00 59.11 +57 46 37.0 c 046
2003-04-21 21:34:37 C 12 00 58.28 +57 46 34.4 c 046
2003-04-21 21:34:58 C 12 00 58.40 +57 46 34.5 d 620
2003-04-21 21:36:00 C 12 00 58.08 +57 46 32.1 c 046
2003-04-21 21:40:06 C 12 00 57.63 +57 46 31.0 d 620
2003-04-21 22:41:12 C 12 00 47.27 +57 45 39.9 o J95
2003-04-21 22:48:58 C 12 00 46.00 +57 45 33.4 o J95
2003-04-21 22:56:32 C 12 00 44.68 +57 45 27.5 o J95
2003-04-21 23:05:15 C 12 00 42.98 +57 45 20.4 d 118
2003-04-21 23:12:40 C 12 00 41.83 +57 45 14.6 d 118
2003-04-21 23:14:30 C 12 00 41.48 +57 45 12.3 d 118
2003-04-21 23:16:49 C 12 00 41.13 +57 45 11.0 d 118
2003-04-22 02:30:46 C 12 00 10.19 +57 42 37.3 c 649
2003-04-22 02:35:52 C 12 00 09.35 +57 42 32.9 c 649
2003-04-22 02:41:00 C 12 00 08.50 +57 42 29.2 c 649
2003-04-22 04:30:55 C 11 59 50.43 +57 41 01.9 18.8 c 704
2003-04-22 04:36:14 C 11 59 48.79 +57 40 55.3 d 734
2003-04-22 04:38:32 C 11 59 49.05 +57 40 55.5 c 926
2003-04-22 04:42:34 C 11 59 48.39 +57 40 52.0 c 926
2003-04-22 04:46:31 C 11 59 47.70 +57 40 49.0 c 926
2003-04-22 04:50:19 C 11 59 46.81 +57 40 45.2 d 734
2003-04-22 05:04:56 C 11 59 44.85 +57 40 33.9 18.9 c 704
2003-04-22 05:30:29 C 11 59 40.37 +57 40 13.0 18.9 c 704
2003-04-22 05:47:16 C 11 59 37.57 +57 39 59.7 18.8 c 704
2003-04-22 06:38:11 C 11 59 28.89 +57 39 15.0 c 750
2003-04-22 06:46:47 C 11 59 27.45 +57 39 08.5 c 750
2003-04-22 06:52:56 C 11 59 26.48 +57 39 03.1 c 750
2003-04-22 07:02:59 C 11 59 24.79 +57 38 54.4 c 750
2003-04-23 00:36:14 C 11 56 35.05 +57 24 17.4 c 621
2003-04-23 00:38:51 C 11 56 34.69 +57 24 15.3 c 621
2003-04-23 00:44:02 C 11 56 33.81 +57 24 10.7 c 621
2003-04-23 00:46:38 C 11 56 33.49 +57 24 08.8 c 621
2003-04-23 00:49:14 C 11 56 33.04 +57 24 06.5 c 621
2003-04-23 03:07:32 C 11 56 12.22 +57 22 12.7 18.9 c 704
2003-04-23 03:22:18 C 11 56 09.76 +57 22 01.0 19.2 c 704
2003-04-23 03:37:06 C 11 56 07.30 +57 21 48.5 19.4 c 704
2003-04-23 03:51:52 C 11 56 04.93 +57 21 35.3 19.4 c 704