Shoemaker

Orbital elements

Semi-major axis

-1,699.216 AU

Eccentricity

1.0032

Inclination

132.49°

Perihelion

5.457 AU

Longitude of ascending node

268.34°

Argument of periapsis

16.99°

Epoch · J2000

JD 2446751.52620 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 1,738.4 LD

4.4668 AU

Orbit quality

Observations used

126

Data arc

4.7 years

First observed

25 April 1987

Last observed

4 January 1992

Residual RMS

0.69 ″

Solution · Otto Matic

15 April 2021

Visual & observation

Absolute magnitude (H)

5.2

Total magnitude M₁ · K₁ 9.8

5.2

Discovery & classification

Also known as 1987 H1