SWAN

Orbital elements

Semi-major axis

-1,230.354 AU

Eccentricity

1.0006

Inclination

107.66°

Perihelion

0.776 AU

Longitude of ascending node

317.25°

Argument of periapsis

269.05°

Epoch · J2000

JD 2453138.18776 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 139.3 LD

0.358 AU

Orbit quality

Observations used

285

Data arc

102 days

First observed

21 May 2004

Last observed

31 August 2004

Residual RMS

0.78 ″

Solution · Otto Matic

15 April 2021

Visual & observation

Absolute magnitude (H)

10.3

Total magnitude M₁ · K₁ 25.5

10.3

Discovery & classification

Also known as 2004 H6