Siding Spring (2006 HR30)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2006-11-26 (JD 2454065.5)
Eccentricity (e)0.8431235765 ± 3.45e-08
Semi-major axis (a)7.8178045384 AU ± 1.59e-06
Inclination (i)31.88445008° ± 5.19e-06
Long. of Asc. Node (Ω)309.95188109° ± 7.00e-06
Arg. of Perihelion (ω)117.41380104° ± 1.02e-05
Mean Anomaly (M)358.31897793° ± 7.61e-07
Mean Motion (n)0.0450896498°/day ± 1.38e-08
Perihelion dist (q)1.22642922 AU ± 3.67e-07
Aphelion dist (Q)14.40917986 AU ± 2.95e-06
Orbital Period21.85925791 yr ± 6.68e-06
Physical Parameters
Rotation Period70.700 h
Orbit Solution
SourceJPL
Solution Date2026-08-07 12:42:15
RMS Residual0.429″
Uncertainty0
Orbit TypeHalley-type Comet*
MOID0.452720 AU
Observations Used3073
Oppositions—
Arc Total2005-2026
First Observation Used—
Last Observation Used2026-07-14
Observations (2)
Date Type RA Dec Mag Band Observatory
2026-07-04 15:29:33 C 19 21 16.24 -38 41 20.2 – V Q62
2026-07-04 15:41:55 C 19 21 15.90 -38 41 20.4 – V Q62