Siding Spring

Orbital elements

Semi-major axis

-16,366.486 AU

Eccentricity

1.0001

Inclination

129.03°

Perihelion

1.4 AU

Longitude of ascending node

301°

Argument of periapsis

2.45°

Epoch · J2000

JD 2456955.67581 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 149.3 LD

0.3836 AU

Tisserand (Jupiter)

-0.919

Orbit quality

Observations used

449

Data arc

3.53 years

First observed

4 October 2012

Last observed

17 April 2016

Residual RMS

0.3 ″

Solution · Davide Farnocchia

22 April 2016

Visual & observation

Absolute magnitude (H)

8.5

Total magnitude M₁ · K₁ 9

8.5

Discovery & classification

Also known as 2013 A1