Catalina-Skiff

Orbital elements

Semi-major axis

-649.366 AU

Eccentricity

1.0076

Inclination

51.93°

Perihelion

4.915 AU

Longitude of ascending node

32.29°

Argument of periapsis

77.52°

Epoch · J2000

JD 2452211.03464 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 1,687.6 LD

4.3363 AU

Orbit quality

Observations used

847

Data arc

4.56 years

First observed

18 September 1999

Last observed

11 April 2004

Residual RMS

0.84 ″

Solution · Otto Matic

15 April 2021

Visual & observation

Absolute magnitude (H)

10.3

Total magnitude M₁ · K₁ 4.5

10.3

Discovery & classification

Also known as 1999 U4