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
2021-04-19 07:51:10 C 11 32 35.975 +59 32 04.80 U F51
2021-04-19 08:08:02 C 11 32 33.670 +59 31 50.01 U F51
2021-04-20 11:19:18 C 11 29 03.22 +59 07 31.9 V T05
2021-04-20 11:24:35 C 11 29 02.43 +59 07 26.2 V T05
2021-04-20 11:32:30 C 11 29 01.52 +59 07 19.0 V T05
2021-04-20 12:20:01 C 11 28 55.46 +59 06 35.0 V T05
2021-04-30 04:31:59 C 11 05 29.60 +55 03 55.0 V G96
2021-04-30 04:39:34 C 11 05 28.96 +55 03 46.2 V G96
2021-04-30 04:54:40 C 11 05 27.74 +55 03 28.8 V G96
2021-05-07 04:15:27 C 10 54 57.17 +51 40 12.2 U I41
2021-05-07 04:16:47 C 10 54 57.10 +51 40 10.3 U I41
2021-05-07 04:22:16 C 10 54 56.84 +51 40 03.7 U I41
2021-05-07 04:49:34 C 10 54 55.41 +51 39 29.0 U I41
2021-05-07 04:52:15 C 10 54 55.27 +51 39 25.6 U I41
2021-05-07 04:52:57 C 10 54 55.23 +51 39 24.7 U I41
2021-05-08 07:19:13 C 10 53 40.94 +51 05 49.0 V T08
2021-05-08 07:24:33 C 10 53 40.71 +51 05 41.9 V T08
2021-05-08 07:32:31 C 10 53 40.19 +51 05 32.0 V T08
2021-05-08 07:47:49 C 10 53 39.49 +51 05 12.7 V T08
2021-05-10 05:05:55 C 10 51 46.80 +50 06 47.1 U I41
2021-05-10 05:08:38 C 10 51 46.70 +50 06 43.6 U I41
2021-05-10 06:46:30 C 10 51 42.75 +50 04 35.0 U I41
2021-05-10 06:48:46 C 10 51 42.63 +50 04 31.9 U I41
2021-05-10 07:06:22 C 10 51 42.24 +50 04 12.5 V T05
2021-05-10 07:11:00 C 10 51 42.07 +50 04 06.2 V T05
2021-05-10 07:18:55 C 10 51 41.73 +50 03 56.4 V T05
2021-05-10 07:38:43 C 10 51 40.98 +50 03 30.3 V T05
2021-05-12 07:15:58 C 10 50 02.02 +49 01 09.5 V T08
2021-05-12 07:29:58 C 10 50 01.49 +49 00 51.2 V T08
2021-05-12 07:35:56 C 10 50 01.30 +49 00 43.0 V T08
2021-05-12 07:47:13 C 10 50 00.91 +49 00 26.9 V T08
2021-05-15 03:18:47 C 10 48 11.05 +47 30 37.3 V G96
2021-05-15 03:28:28 C 10 48 10.80 +47 30 24.3 V G96
2021-05-15 03:36:05 C 10 48 10.61 +47 30 14.1 V G96
2021-05-15 03:43:42 C 10 48 10.41 +47 30 03.9 V G96
2021-05-24 06:50:29 C 10 45 38.322 +42 30 22.98 U F51
2021-05-24 07:10:03 C 10 45 38.251 +42 29 55.59 U F51
2021-05-24 07:29:35 C 10 45 38.171 +42 29 28.26 U F51
2021-05-30 04:39:10 C 10 46 12.49 +39 11 45.0 V 703
2021-05-30 04:46:46 C 10 46 12.42 +39 11 33.9 V 703
2021-05-30 04:54:21 C 10 46 12.45 +39 11 24.0 V 703
2021-05-30 05:01:56 C 10 46 12.57 +39 11 13.2 V 703
2021-06-04 04:12:43 C 10 47 43.59 +36 22 13.2 V 703
2021-06-04 04:20:53 C 10 47 43.74 +36 22 01.3 V 703
2021-06-04 04:29:02 C 10 47 43.81 +36 21 49.6 V 703
2021-06-04 04:37:12 C 10 47 44.00 +36 21 38.2 V 703
2021-06-09 04:15:55 C 10 50 02.16 +33 30 13.2 V 703
2021-06-09 04:24:04 C 10 50 02.31 +33 30 01.9 V 703
2021-06-09 04:32:13 C 10 50 02.40 +33 29 49.9 V 703
2021-06-13 04:14:24 C 10 52 21.31 +31 11 24.9 V 703