SOHO

Orbital elements

Semi-major axis

-2.936 AU

Eccentricity

1.0167

Inclination

26.81°

Perihelion

0.049 AU

Longitude of ascending node

82.14°

Argument of periapsis

21.78°

Epoch · J2000

JD 2451476.72509 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 17.4 LD

0.0448 AU

Orbit quality

Observations used

41

Data arc

24 hours

First observed

24 October 1999

Last observed

25 October 1999

Residual RMS

0.09 ″

Solution · Otto Matic

15 April 2021

Discovery & classification

Also known as 1999 U2