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
2021-03-21 13:51:43 C 13 32 38.70 +62 04 49.4 V T08
2021-03-21 14:07:33 C 13 32 36.01 +62 04 57.0 V T08
2021-03-23 11:06:13 C 13 25 01.666 +62 24 35.99 U F51
2021-03-23 11:22:03 C 13 24 58.853 +62 24 42.30 U F51
2021-03-23 11:37:53 C 13 24 56.076 +62 24 48.59 U F51
2021-03-23 11:53:45 C 13 24 53.239 +62 24 54.80 U F51
2021-03-30 07:35:04 C 12 54 58.68 +63 02 39.9 V 703
2021-03-30 07:43:13 C 12 54 57.01 +63 02 38.6 V 703
2021-03-30 07:51:43 C 12 54 55.44 +63 02 39.6 V 703
2021-03-30 07:59:41 C 12 54 53.80 +63 02 39.3 V 703
2021-03-31 11:08:22 C 12 49 43.893 +63 03 29.64 U F51
2021-03-31 11:22:25 C 12 49 41.142 +63 03 29.53 U F51
2021-03-31 11:50:25 C 12 49 35.686 +63 03 29.31 U F51
2021-04-02 07:33:58 C 12 41 15.23 +63 01 21.4 V 703
2021-04-02 07:50:42 C 12 41 11.97 +63 01 18.5 V 703
2021-04-02 07:59:09 C 12 41 10.47 +63 01 17.4 V 703
2021-04-02 13:25:35 C 12 40 07.422 +63 00 42.80 U F51
2021-04-02 13:44:18 C 12 40 03.792 +63 00 40.28 U F51
2021-04-02 14:02:58 C 12 40 00.185 +63 00 37.85 U F51
2021-04-02 14:21:38 C 12 39 56.577 +63 00 35.27 U F51
2021-04-05 07:16:08 C 12 27 39.86 +62 48 46.4 V 703
2021-04-05 07:24:07 C 12 27 38.41 +62 48 44.8 V 703
2021-04-05 07:31:51 C 12 27 36.78 +62 48 41.7 V 703
2021-04-05 07:39:36 C 12 27 35.25 +62 48 40.6 V 703
2021-04-06 08:43:17 C 12 22 55.32 +62 41 40.7 V T08
2021-04-06 08:45:57 C 12 22 54.84 +62 41 39.9 V T08
2021-04-06 08:51:15 C 12 22 53.80 +62 41 37.5 V T08
2021-04-06 08:58:33 C 12 22 52.38 +62 41 35.7 V T08
2021-04-11 07:05:02 C 12 01 48.13 +61 50 42.9 V 703
2021-04-11 07:12:53 C 12 01 46.68 +61 50 38.8 V 703
2021-04-11 07:28:31 C 12 01 43.91 +61 50 30.8 V 703
2021-04-16 22:00:52 C 11 40 33.97 +60 20 04.1 V 130
2021-04-16 22:06:36 C 11 40 33.09 +60 19 59.6 V 130
2021-04-16 22:12:19 C 11 40 32.29 +60 19 55.0 V 130
2021-04-17 06:17:49 C 11 39 22.95 +60 13 31.9 V 703
2021-04-17 06:26:07 C 11 39 21.64 +60 13 25.5 V 703
2021-04-17 06:42:41 C 11 39 19.18 +60 13 11.1 V 703
2021-04-18 07:22:36 C 11 35 53.270 +59 53 01.15 U F51
2021-04-18 07:38:28 C 11 35 51.034 +59 52 47.92 U F51
2021-04-18 07:41:57 C 11 35 50.51 +59 52 45.4 V T08
2021-04-18 07:44:36 C 11 35 50.13 +59 52 43.2 V T08
2021-04-18 07:50:43 C 11 35 49.26 +59 52 38.1 V T08
2021-04-18 07:54:18 C 11 35 48.799 +59 52 34.74 U F51
2021-04-18 08:00:10 C 11 35 47.89 +59 52 30.0 V T08
2021-04-18 08:10:12 C 11 35 46.561 +59 52 21.43 U F51
2021-04-18 08:38:44 C 11 35 42.56 +59 51 57.4 V T08
2021-04-18 09:17:51 C 11 35 37.00 +59 51 24.3 V T08
2021-04-18 09:22:33 C 11 35 36.33 +59 51 21.1 V T08
2021-04-18 09:32:13 C 11 35 34.92 +59 51 12.4 V T08
2021-04-19 07:17:30 C 11 32 40.552 +59 32 34.02 U F51