Ferris

Orbital elements

Semi-major axis

-1,215.077 AU

Eccentricity

1.0034

Inclination

105.75°

Perihelion

4.139 AU

Longitude of ascending node

58.26°

Argument of periapsis

291.12°

Epoch · J2000

JD 2451059.79597 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 1,424.3 LD

3.6599 AU

Orbit quality

Observations used

208

Data arc

402 days

First observed

22 December 1998

Last observed

28 January 2000

Residual RMS

0.6 ″

Solution · Otto Matic

15 April 2021

Visual & observation

Absolute magnitude (H)

10.8

Total magnitude M₁ · K₁ 4.5

10.8

Discovery & classification

Also known as 1999 U1