Furuyama

Orbital elements

Semi-major axis

-7,299.905 AU

Eccentricity

1.0002

Inclination

117.78°

Perihelion

1.68 AU

Longitude of ascending node

250.75°

Argument of periapsis

233.63°

Epoch · J2000

JD 2447223.56862 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 366.1 LD

0.9406 AU

Orbit quality

Observations used

152

Data arc

264 days

First observed

22 November 1987

Last observed

12 August 1988

Residual RMS

0.55 ″

Solution · Otto Matic

15 April 2021

Visual & observation

Absolute magnitude (H)

9.4

Total magnitude M₁ · K₁ 4.5

9.4

Discovery & classification

Also known as 1987 W2