Sandage

Orbital elements

Semi-major axis

-21,320.458 AU

Eccentricity

1.0002

Inclination

137.4°

Perihelion

4.812 AU

Longitude of ascending node

279.24°

Argument of periapsis

72.55°

Epoch · J2000

JD 2441994.65659 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 1,589.3 LD

4.0837 AU

Orbit quality

Observations used

27

Data arc

609 days

First observed

4 July 1973

Last observed

5 March 1975

Residual RMS

0.96 ″

Solution · Otto Matic

15 April 2021

Visual & observation

Absolute magnitude (H)

6.2

Total magnitude M₁ · K₁ 10

6.2

Discovery & classification

Also known as 1973 N1