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
2012-10-16 12:01:22 C 10 07 26.04 +27 04 25.8 r G96
2012-11-23 23:29:30 C 11 54 49.45 +47 14 52.0 o C41
2012-11-24 00:02:49 C 11 54 53.35 +47 15 33.5 o C41
2012-11-24 00:36:07 C 11 54 57.07 +47 16 13.5 o C41
2014-02-10 23:12:32 C 00 48 05.02 +24 48 56.6 q I15
2014-02-10 23:18:57 C 00 48 06.18 +24 49 10.7 q I15
2014-02-10 23:25:22 C 00 48 07.03 +24 49 23.3 q I15
2016-02-11 09:13:11 C 15 30 54.90 +27 48 15.0 R G45
2016-02-11 09:26:57 C 15 30 55.59 +27 48 21.1 R G45
2016-02-11 09:33:59 C 15 30 55.99 +27 48 24.7 R G45
2016-02-11 09:40:52 C 15 30 56.34 +27 48 27.7 R G45
2016-02-17 09:45:13 C 15 38 09.78 +28 58 37.4 R G45
2016-02-17 09:52:06 C 15 38 10.14 +28 58 41.2 R G45
2016-02-17 09:59:37 C 15 38 10.52 +28 58 44.7 R G45
2016-02-17 10:07:00 C 15 38 10.78 +28 58 49.2 R G45
2016-02-17 10:13:29 C 15 38 11.10 +28 58 53.4 R G45
2016-02-29 08:29:26 C 15 49 54.75 +31 54 35.0 R G45
2016-02-29 08:29:31 C 15 49 54.75 +31 54 35.5 R G45
2016-02-29 08:36:34 C 15 49 54.96 +31 54 40.4 R G45
2016-02-29 08:37:14 C 15 49 55.01 +31 54 41.2 R G45
2016-02-29 08:44:19 C 15 49 55.24 +31 54 46.0 R G45
2016-02-29 08:44:31 C 15 49 55.25 +31 54 46.2 R G45
2016-02-29 08:51:19 C 15 49 55.47 +31 54 51.1 R G45
2016-02-29 08:51:25 C 15 49 55.47 +31 54 51.4 R G45
2016-02-29 08:58:20 C 15 49 55.67 +31 54 56.1 R G45
2016-03-03 11:45:48 C 15 52 15.60 +32 49 35.7 q 703
2016-03-03 11:58:47 C 15 52 15.92 +32 49 45.1 q 703
2016-03-03 12:05:17 C 15 52 16.15 +32 49 51.4 q 703
2016-03-15 07:51:26 C 15 57 18.04 +36 53 17.5 R G45
2016-03-15 07:59:11 C 15 57 18.09 +36 53 25.3 R G45
2016-03-15 08:06:37 C 15 57 18.06 +36 53 32.3 R G45
2016-03-15 08:06:54 C 15 57 18.07 +36 53 32.7 R G45
2016-03-15 08:14:22 C 15 57 18.12 +36 53 40.1 R G45
2016-03-15 08:22:25 C 15 57 18.13 +36 53 48.2 R G45
2016-03-15 08:22:31 C 15 57 18.13 +36 53 47.9 R G45
2016-03-15 10:58:37 C 15 57 18.23 +36 56 20.5 q H45
2016-03-15 11:00:27 C 15 57 18.23 +36 56 22.0 q H45
2016-03-15 11:02:00 C 15 57 18.24 +36 56 23.4 q H45
2016-03-15 11:03:57 C 15 57 18.30 +36 56 25.5 q H45
2016-03-16 09:36:52 C 15 57 22.98 +37 18 22.2 q G96
2016-03-16 09:42:49 C 15 57 22.95 +37 18 28.2 q G96
2016-03-16 09:48:46 C 15 57 22.97 +37 18 33.9 q G96
2016-03-16 09:54:43 C 15 57 22.98 +37 18 39.5 q G96
2016-03-17 10:36:13 C 15 57 23.27 +37 43 09.7 q H45
2016-03-17 10:37:41 C 15 57 23.27 +37 43 11.4 q H45
2016-03-17 10:39:01 C 15 57 23.25 +37 43 12.4 q H45
2016-03-17 10:40:22 C 15 57 23.23 +37 43 13.9 q H45
2016-03-17 10:42:00 C 15 57 23.23 +37 43 15.4 q H45
2016-03-17 10:43:34 C 15 57 23.23 +37 43 17.1 q H45
2016-03-19 09:02:38 C 15 57 13.32 +38 30 29.8 q 703