West

Orbital elements

Semi-major axis

-2,080.153 AU

Eccentricity

1.0027

Inclination

116.92°

Perihelion

5.606 AU

Longitude of ascending node

211.62°

Argument of periapsis

343.27°

Epoch · J2000

JD 2443345.94886 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 1,801.9 LD

4.6302 AU

Orbit quality

Observations used

60

Data arc

3.24 years

First observed

30 March 1976

Last observed

26 June 1979

Residual RMS

0.53 ″

Solution · Otto Matic

15 April 2021

Visual & observation

Absolute magnitude (H)

6

Total magnitude M₁ · K₁ 8.5

6

Discovery & classification

Also known as 1978 A1