2005 HC4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.9611995000
Semi-major axis (a)1.8206047000 AU
Inclination (i)8.55648000°
Long. of Asc. Node (Ω)62.30625000°
Arg. of Perihelion (ω)310.52105000°
Mean Anomaly (M)111.85168000°
Mean Motion (n)0.4012181500°/day
Perihelion dist (q)0.07064040 AU
Aphelion dist (Q)3.57056900 AU
Orbital Period2.45653800 yr
Physical Parameters
H (abs. magnitude)20.70
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.560″
Uncertainty9
Orbit TypeApollo
MOID0.059131 AU
Observations Used50
Oppositions1
Arc Total
First Observation Used
Last Observation Used2005-05-11
Observations (53)
Date Type RA Dec Mag Band Observatory
2005-05-06 22:09:18 C 11 58 06.09 +19 49 31.6 r 176
2005-05-11 21:42:31 C 10 31 09.23 +26 02 29.1 r J95
2005-05-11 22:16:20 C 10 30 44.38 +26 03 41.0 r J95