2018 HA1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4187368437 ± 1.42e-07
Semi-major axis (a)1.3276878972 AU ± 1.73e-08
Inclination (i)37.69621292° ± 3.57e-05
Long. of Asc. Node (Ω)210.94237373° ± 6.76e-06
Arg. of Perihelion (ω)108.79765777° ± 1.57e-05
Mean Anomaly (M)282.24560231° ± 2.05e-05
Mean Motion (n)0.6442705524°/day ± 1.26e-08
Perihelion dist (q)0.77173606 AU ± 1.88e-07
Aphelion dist (Q)1.88363974 AU ± 1.90e-07
Orbital Period1.52983289 yr ± 3.00e-08
Physical Parameters
H (abs. magnitude)22.10
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.362″
Uncertainty0
Orbit TypeApollo
MOID0.027010 AU
Observations Used75
Oppositions2
Arc Total2018-2024
First Observation Used2018-04-19
Last Observation Used2024-11-08
Observations (77)
Date Type RA Dec Mag Band Observatory
2018-05-08 03:36:53 C 12 11 43.48 +20 24 15.7 o 691
2018-05-08 03:58:00 C 12 11 41.34 +20 26 05.1 o 691
2018-05-08 04:19:11 C 12 11 39.09 +20 27 55.0 o 691
2018-05-08 05:54:35 C 12 11 29.19 +20 36 06.9 U I52
2018-05-08 05:58:11 C 12 11 28.88 +20 36 25.8 U I52
2018-05-08 06:01:45 C 12 11 28.51 +20 36 44.5 U I52
2018-05-08 06:05:20 C 12 11 28.19 +20 37 02.5 U I52
2018-05-10 05:27:37 C 12 07 04.12 +24 35 05.9 o 291
2018-05-10 05:31:51 C 12 07 03.73 +24 35 26.6 o 291
2018-05-10 05:36:05 C 12 07 03.28 +24 35 47.2 o 291
2018-05-16 08:05:17 C 11 54 38.73 +35 17 37.1 o 291
2018-05-16 08:12:03 C 11 54 38.20 +35 18 02.7 o 291
2018-05-16 08:18:50 C 11 54 37.64 +35 18 28.9 o 291
2018-05-19 04:59:32 C 11 49 28.92 +39 30 28.2 o 291
2018-05-19 05:13:38 C 11 49 27.81 +39 31 16.4 o 291
2018-05-19 05:27:46 C 11 49 26.62 +39 32 05.1 o 291
2021-04-06 09:54:55 C 11 12 16.078 -35 08 17.84 V T14
2021-04-06 09:56:40 C 11 12 15.930 -35 08 14.24 V T14
2021-04-06 09:58:25 C 11 12 15.775 -35 08 10.66 V T14
2021-04-07 07:46:29 C 11 10 29.776 -34 22 35.78 V T12
2021-04-07 07:52:15 C 11 10 29.282 -34 22 23.71 V T12
2021-04-07 07:58:07 C 11 10 28.788 -34 22 11.26 V T12
2021-04-07 08:03:43 C 11 10 28.303 -34 21 59.31 V T12
2021-04-07 08:09:04 C 11 10 27.841 -34 21 48.00 V T12
2024-11-08 02:54:54 C 00 50 55.370 -54 40 24.40 V 807
2024-11-08 03:01:21 C 00 50 58.040 -54 40 14.10 V 807
2024-11-08 03:07:35 C 00 51 00.600 -54 40 04.10 V 807