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
2007-05-07 13:25:01 C 11 48 04.49 +67 01 47.4 m 379
2007-05-07 13:30:48 C 11 47 56.67 +67 01 42.9 m 379
2007-05-07 13:34:00 C 11 47 52.27 +67 01 40.8 m 379
2007-05-07 13:37:12 C 11 47 48.06 +67 01 38.3 m 379
2007-05-07 13:40:24 C 11 47 43.66 +67 01 35.9 m 379
2007-05-13 03:25:19 C 09 04 39.46 +58 36 08.8 c 762
2007-05-13 03:27:39 C 09 04 37.30 +58 35 53.2 c 762
2007-05-13 03:29:07 C 09 04 35.86 +58 35 43.7 c 762
2007-05-13 03:31:33 C 09 04 33.50 +58 35 27.2 c 762
2007-05-13 03:35:53 C 09 04 29.39 +58 34 58.3 c 762
2007-05-13 03:37:49 C 09 04 27.55 +58 34 45.2 c 762
2007-05-13 03:39:17 C 09 04 26.10 +58 34 35.3 c 762
2007-05-13 03:41:37 C 09 04 23.85 +58 34 19.4 c 762
2007-05-18 03:31:33 C 07 40 47.71 +42 53 17.9 c 762
2007-05-18 03:39:05 C 07 40 44.10 +42 52 13.0 c 762
2007-05-18 03:40:50 C 07 40 43.12 +42 51 57.4 c 762
2007-05-18 03:42:45 C 07 40 42.22 +42 51 41.0 c 762
2007-05-18 03:45:57 C 07 40 40.58 +42 51 13.4 c 762
2007-05-18 03:47:30 C 07 40 39.86 +42 51 00.9 c 762
2007-05-18 03:48:57 C 07 40 39.16 +42 50 48.6 c 762
2007-10-10 11:44:33 C 10 23 26.91 +36 12 05.1 r 703
2007-10-10 11:49:05 C 10 23 27.52 +36 12 05.6 r 703
2007-10-10 11:53:33 C 10 23 28.24 +36 12 06.4 r 703
2007-10-10 11:58:01 C 10 23 28.68 +36 12 06.1 r 703
2008-12-13 17:32:53 C 19 23 52.07 +60 15 54.9 16.5 o C20
2008-12-13 17:36:59 C 19 23 53.93 +60 16 07.2 16.4 o C20
2008-12-14 18:03:10 C 19 34 20.38 +61 24 30.6 16.5 o C20
2008-12-14 18:07:17 C 19 34 22.09 +61 24 41.0 16.5 o C20
2008-12-17 17:55:16 C 20 04 55.85 +64 06 00.4 17.1 o C20
2008-12-18 17:49:23 C 20 14 59.53 +64 48 40.0 17.0 o C20
2008-12-19 18:19:57 C 20 25 12.89 +65 27 34.5 17.1 o C20
2008-12-19 18:24:04 C 20 25 14.82 +65 27 40.7 17.0 o C20
2008-12-20 18:10:17 C 20 35 03.13 +66 01 17.0 17.3 o C20
2008-12-20 18:14:24 C 20 35 04.88 +66 01 22.1 17.4 o C20
2008-12-23 21:40:52 C 21 05 20.86 +67 25 11.1 o J53
2008-12-23 21:42:02 C 21 05 21.36 +67 25 12.0 o J53
2008-12-23 21:45:35 C 21 05 22.87 +67 25 14.4 o J53
2009-01-09 17:17:47 C 23 20 03.02 +69 44 59.9 18.2 o C20
2009-01-09 17:21:54 C 23 20 03.99 +69 44 59.9 18.5 o C20
2009-01-16 19:31:51 C 00 05 03.45 +69 39 14.2 18.6 o C20
2009-01-17 21:02:45 C 00 11 22.82 +69 36 59.1 18.7 o C20
2009-01-17 21:06:52 C 00 11 23.84 +69 36 58.5 18.9 o C20
2009-01-28 19:46:30 C 01 11 46.36 +69 02 24.1 18.8 o C20
2009-01-28 19:50:37 C 01 11 47.23 +69 02 23.3 18.9 o C20
2009-01-30 22:23:00 C 01 22 37.42 +68 53 51.3 19.2 o C20
2009-01-31 23:34:49 C 01 27 57.05 +68 49 27.1 18.8 o C20
2011-02-12 12:36:39 C 16 46 50.23 +02 43 57.0 r 703
2011-02-12 12:45:44 C 16 46 51.24 +02 43 52.7 r 703
2011-02-12 12:54:48 C 16 46 52.35 +02 43 48.2 r 703
2012-01-19 15:41:55 C 14 25 56.773 +38 59 31.08 L F51