1993 HC

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5078781616 ± 1.18e-07
Semi-major axis (a)1.9898422765 AU ± 1.39e-09
Inclination (i)9.43067109° ± 1.73e-05
Long. of Asc. Node (Ω)201.00322640° ± 3.52e-05
Arg. of Perihelion (ω)306.90890340° ± 2.63e-05
Mean Anomaly (M)241.66093562° ± 1.12e-05
Mean Motion (n)0.3511432267°/day ± 3.67e-10
Perihelion dist (q)0.97924484 AU ± 2.34e-07
Aphelion dist (Q)3.00043971 AU ± 2.34e-07
Orbital Period2.80690672 yr ± 2.94e-09
Physical Parameters
H (abs. magnitude)20.77
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.304″
Uncertainty0
Orbit TypeApollo
MOID0.069069 AU
Observations Used54
Oppositions18
Arc Total1993-2021
First Observation Used1993-04-19
Last Observation Used2021-05-07
Observations (58)
Date Type RA Dec Mag Band Observatory
2021-04-30 04:32:50 C 09 38 19.47 +14 41 26.5 V I52
2021-05-04 05:40:50 C 10 06 23.76 +14 14 27.7 o 691
2021-05-04 06:06:06 C 10 06 30.69 +14 14 18.4 o 691
2021-05-04 06:31:20 C 10 06 37.62 +14 14 09.1 o 691
2021-05-07 04:46:54 C 10 25 38.26 +13 46 16.5 V G96
2021-05-07 04:55:08 C 10 25 40.40 +13 46 13.5 V G96
2021-05-07 05:03:23 C 10 25 42.52 +13 46 09.1 V G96
2021-05-07 05:11:36 C 10 25 44.65 +13 46 05.4 V G96