2020 HT9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5378658493 ± 3.46e-08
Semi-major axis (a)1.8676567120 AU ± 1.37e-08
Inclination (i)8.60223722° ± 8.51e-06
Long. of Asc. Node (Ω)157.76638464° ± 1.07e-04
Arg. of Perihelion (ω)158.83576591° ± 1.00e-04
Mean Anomaly (M)27.50194380° ± 7.18e-06
Mean Motion (n)0.3861594762°/day ± 4.25e-09
Perihelion dist (q)0.86310795 AU ± 6.49e-08
Aphelion dist (Q)2.87220548 AU ± 6.79e-08
Orbital Period2.55238145 yr ± 2.81e-08
Physical Parameters
H (abs. magnitude)21.91
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.286″
Uncertainty0
Orbit TypeApollo
MOID0.072403 AU
Observations Used63
Oppositions3
Arc Total2020-2025
First Observation Used2020-04-23
Last Observation Used2025-11-11
Observations (64)
Date Type RA Dec Mag Band Observatory
2020-11-07 07:53:59 C 05 07 42.50 -00 49 18.0 V 807
2020-11-07 08:06:36 C 05 07 41.32 -00 49 19.8 V 807
2020-11-09 07:35:50 C 05 03 23.83 -00 55 37.5 V 807
2020-11-09 07:49:02 C 05 03 22.57 -00 55 39.1 V 807
2020-11-09 08:01:39 C 05 03 21.39 -00 55 40.7 V 807
2020-11-18 06:56:06 C 04 43 47.56 -01 02 11.9 u H21
2020-11-18 07:10:42 C 04 43 46.21 -01 02 10.8 u H21
2020-11-18 07:20:20 C 04 43 45.33 -01 02 10.1 u H21
2025-11-08 03:22:47 C 22 52 00.720 -30 32 38.30 V I52
2025-11-08 03:32:38 C 22 52 03.475 -30 32 21.26 V I52
2025-11-08 03:57:51 C 22 52 10.967 -30 31 37.99 V I52
2025-11-11 04:17:48 C 23 12 41.425 -28 23 58.96 V I52
2025-11-11 04:44:37 C 23 12 48.366 -28 23 12.44 V I52
2025-11-11 05:06:54 C 23 12 54.148 -28 22 32.30 V I52