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
2016-05-23 02:37:32 C 09 07 57.28 +35 18 19.0 q H45
2016-05-23 02:38:51 C 09 07 56.81 +35 18 13.3 q H45
2016-05-24 06:37:45 C 08 59 24.71 +33 13 06.3 L T05
2016-05-24 06:55:26 C 08 59 19.35 +33 11 46.3 L T05
2016-05-24 07:11:38 C 08 59 14.45 +33 10 31.8 L T05
2016-05-24 07:34:31 C 08 59 07.53 +33 08 48.6 L T05
2017-03-08 14:41:59 C 12 11 17.23 +72 28 15.8 q D29
2017-03-08 15:32:54 C 12 11 04.87 +72 28 25.3 q D29
2017-04-07 06:08:42 C 10 06 59.446 +66 41 27.34 L F51
2017-04-07 06:27:34 C 10 06 57.869 +66 41 10.16 L F51
2017-04-07 07:05:22 C 10 06 54.739 +66 40 35.76 L F51
2017-04-07 07:17:11 C 10 06 53.764 +66 40 24.88 L F51
2017-04-07 07:35:55 C 10 06 52.207 +66 40 07.80 L F51
2017-04-07 07:54:38 C 10 06 50.675 +66 39 50.47 L F51
2017-04-07 08:13:21 C 10 06 49.143 +66 39 33.28 L F51
2017-04-14 13:01:28 C 09 56 40.36 +63 53 28.9 q D29
2017-04-14 13:27:33 C 09 56 39.19 +63 53 03.8 q D29
2017-12-12 05:57:01 C 20 11 04.55 +29 25 26.0 U T05
2017-12-12 06:07:02 C 20 11 07.92 +29 26 33.0 U T05
2017-12-12 06:14:58 C 20 11 10.66 +29 27 25.9 U T05
2017-12-15 04:57:18 C 20 35 04.22 +36 34 51.9 U T08
2017-12-15 04:57:57 C 20 35 04.43 +36 34 55.7 U T08
2017-12-15 05:09:34 C 20 35 08.19 +36 35 56.9 U T08
2017-12-15 05:22:26 C 20 35 12.43 +36 37 05.2 U T08
2017-12-25 05:56:26 C 21 49 55.37 +51 04 41.7 U T05
2017-12-25 06:07:51 C 21 49 58.59 +51 05 07.0 U T05
2017-12-25 06:18:33 C 21 50 01.61 +51 05 30.8 U T05
2018-01-10 06:33:51 C 23 27 32.22 +59 25 58.8 U T05
2018-01-10 06:46:03 C 23 27 34.98 +59 26 06.7 U T05
2018-01-10 06:58:52 C 23 27 37.84 +59 26 14.8 U T05
2018-01-10 07:10:24 C 23 27 40.38 +59 26 22.2 U T05
2018-01-13 23:54:34 C 23 47 22.15 +60 20 32.7 U W34
2018-01-14 00:07:32 C 23 47 24.89 +60 20 39.3 U W34
2018-01-14 00:40:15 C 23 47 31.95 +60 20 54.8 U W34
2018-01-14 06:34:02 C 23 48 48.22 +60 24 05.5 U T05
2018-01-14 06:48:51 C 23 48 51.35 +60 24 12.6 U T05
2018-01-14 07:03:53 C 23 48 54.54 +60 24 20.0 U T05
2018-01-14 07:18:40 C 23 48 57.73 +60 24 27.4 U T05
2020-01-30 05:03:00 C 16 01 46.42 +08 17 23.3 V C95
2020-01-30 05:17:29 C 16 01 47.79 +08 17 19.1 V C95
2020-01-30 05:31:53 C 16 01 49.13 +08 17 14.0 V C95
2020-02-25 15:06:58 C 17 09 38.10 +04 28 05.3 V T08
2020-02-25 15:12:50 C 17 09 38.84 +04 28 02.7 V T08
2020-02-25 15:24:00 C 17 09 40.19 +04 27 57.6 V T08
2020-02-25 15:37:50 C 17 09 41.92 +04 27 52.0 V T08
2020-03-19 04:08:13 C 18 36 55.04 -01 19 24.8 V 160
2020-03-19 04:11:15 C 18 36 55.73 -01 19 28.0 V 160
2020-03-19 04:14:16 C 18 36 56.37 -01 19 28.4 V 160
2020-03-20 03:15:13 C 18 41 58.59 -01 41 01.0 V 160
2020-03-20 03:18:42 C 18 41 59.33 -01 41 03.8 V 160