McNaught

Orbital elements

Semi-major axis

-980.359 AU

Eccentricity

1.0004

Inclination

77.03°

Perihelion

0.405 AU

Longitude of ascending node

322.62°

Argument of periapsis

130.69°

Epoch · J2000

JD 2455380.17815 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 173.6 LD

0.4462 AU

Orbit quality

Observations used

751

Data arc

315 days

First observed

18 August 2009

Last observed

29 June 2010

Residual RMS

0.71 ″

Solution · Otto Matic

15 April 2021

Visual & observation

Absolute magnitude (H)

9.9

Total magnitude M₁ · K₁ 6.8

9.9

Discovery & classification

Also known as 2009 R1