Arend-Roland

Orbital elements

Semi-major axis

-1,274.056 AU

Eccentricity

1.0002

Inclination

119.94°

Perihelion

0.316 AU

Longitude of ascending node

215.86°

Argument of periapsis

308.77°

Epoch · J2000

JD 2435936.53241 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 92.9 LD

0.2387 AU

Orbit quality

Observations used

57

Data arc

497 days

First observed

30 November 1956

Last observed

11 April 1958

Residual RMS

0.6 ″

Solution · Otto Matic

15 April 2021

Discovery & classification

Also known as 1956 R1