Helin-Alu

Orbital elements

Semi-major axis

-709.505 AU

Eccentricity

1.0043

Inclination

39.27°

Perihelion

3.017 AU

Longitude of ascending node

288.91°

Argument of periapsis

239.84°

Epoch · J2000

JD 2448812.21708 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 866.3 LD

2.226 AU

Orbit quality

Observations used

53

Data arc

439 days

First observed

9 January 1992

Last observed

23 March 1993

Residual RMS

0.75 ″

Solution · Otto Matic

15 April 2021

Visual & observation

Absolute magnitude (H)

12.2

Total magnitude M₁ · K₁ 4.5

12.2

Discovery & classification

Also known as 1992 A1