Siding Spring

Orbital elements

Semi-major axis

-1,072.961 AU

Eccentricity

1.0021

Inclination

45.81°

Perihelion

2.266 AU

Longitude of ascending node

228.13°

Argument of periapsis

359.97°

Epoch · J2000

JD 2454007.83060 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 489.0 LD

1.2566 AU

Orbit quality

Observations used

182

Data arc

471 days

First observed

23 April 2006

Last observed

7 August 2007

Residual RMS

0.58 ″

Solution · Otto Matic

15 April 2021

Visual & observation

Absolute magnitude (H)

11.2

Total magnitude M₁ · K₁ 10

11.2

Discovery & classification

Also known as 2006 HW51