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
2021-11-15 11:44:39 C 11 31 31.66 +42 49 51.9 V 703
2021-11-15 11:52:53 C 11 31 32.65 +42 50 05.1 V 703
2021-11-15 12:01:05 C 11 31 33.60 +42 50 17.9 V 703
2021-11-15 12:09:18 C 11 31 34.52 +42 50 31.2 V 703
2021-11-18 10:47:59 C 11 39 50.73 +44 39 46.3 U I41
2021-11-18 10:49:22 C 11 39 50.87 +44 39 48.4 U I41
2021-11-18 11:22:50 C 11 39 54.75 +44 40 40.7 U I41
2021-11-18 11:27:38 C 11 39 55.30 +44 40 48.3 U I41
2021-11-18 13:53:58 C 11 40 12.54 +44 44 33.5 V T05
2021-11-18 14:01:55 C 11 40 13.39 +44 44 45.6 V T05
2021-11-18 14:04:33 C 11 40 13.73 +44 44 50.6 V T05
2021-11-18 14:19:47 C 11 40 15.57 +44 45 13.9 V T05
2021-11-18 14:30:21 C 11 40 16.68 +44 45 30.9 V T05
2021-11-23 14:28:44 C 11 54 18.244 +47 47 26.57 U F52
2021-11-23 14:42:29 C 11 54 19.816 +47 47 47.60 U F52
2021-11-23 14:56:24 C 11 54 21.392 +47 48 08.87 U F52
2021-11-23 15:10:10 C 11 54 22.960 +47 48 29.92 U F52
2021-11-24 14:10:32 C 11 57 03.95 +48 22 58.2 V T08
2021-11-24 14:15:55 C 11 57 04.48 +48 23 05.7 V T08
2021-11-24 14:24:33 C 11 57 05.54 +48 23 19.1 V T08
2021-11-24 14:41:08 C 11 57 07.47 +48 23 43.9 V T08
2021-11-25 16:18:02 S 12 00 05.15 +49 01 59.4 L C51
2021-11-25 19:26:10 S 12 00 27.20 +49 06 40.7 L C51
2021-11-25 22:34:18 S 12 00 48.88 +49 11 24.0 L C51
2021-11-26 01:42:26 S 12 01 10.63 +49 16 01.4 L C51
2021-11-26 01:42:37 S 12 01 10.67 +49 16 01.4 L C51
2021-11-26 03:16:41 S 12 01 21.59 +49 18 21.7 L C51
2021-11-26 04:50:45 S 12 01 32.49 +49 20 42.4 L C51
2021-11-26 06:24:49 S 12 01 43.42 +49 23 00.2 L C51
2021-11-26 07:58:54 S 12 01 54.33 +49 25 21.5 L C51
2021-11-26 09:32:57 S 12 02 05.191 +49 27 42.80 L C51
2021-11-26 11:07:01 S 12 02 16.18 +49 30 02.0 L C51
2021-11-26 13:37:38 C 12 02 34.79 +49 33 45.5 V T05
2021-11-26 13:45:36 C 12 02 35.68 +49 33 57.6 V T05
2021-11-26 13:54:52 C 12 02 36.72 +49 34 11.8 V T05
2021-11-26 14:09:35 C 12 02 38.46 +49 34 34.3 V T05
2021-11-26 14:15:09 S 12 02 37.96 +49 34 41.8 L C51
2021-11-26 18:57:21 S 12 03 10.462 +49 41 41.82 L C51
2021-11-27 01:13:48 S 12 03 54.27 +49 51 02.0 L C51
2021-11-28 19:34:33 S 12 08 47.73 +50 53 51.4 L C51
2021-11-29 00:16:44 S 12 09 20.23 +51 00 49.9 L C51
2021-11-29 00:16:56 S 12 09 20.24 +51 00 50.0 L C51
2021-11-29 01:50:48 S 12 09 30.96 +51 03 08.8 L C51
2021-11-29 03:24:20 S 12 09 41.80 +51 05 26.4 L C51
2021-11-29 06:33:11 S 12 10 03.49 +51 10 06.3 L C51
2021-11-29 08:07:16 S 12 10 14.31 +51 12 24.8 L C51
2021-11-29 09:31:24 C 12 10 25.06 +51 14 25.4 V 703
2021-11-29 09:41:02 C 12 10 26.24 +51 14 40.2 V 703
2021-11-29 09:41:19 S 12 10 25.02 +51 14 44.4 L C51
2021-11-29 10:00:17 C 12 10 28.91 +51 15 08.9 V 703