Swift

Orbital elements

Semi-major axis

-1,004.044 AU

Eccentricity

1.0003

Inclination

146.27°

Perihelion

0.327 AU

Longitude of ascending node

26.41°

Argument of periapsis

8.71°

Epoch · J2000

JD 2414757.97708 (perihelion)

Orbit class · HYP

Hyperbolic comet

Earth MOID · 197.0 LD

0.5062 AU

Orbit quality

Observations used

151

Data arc

126 days

First observed

6 March 1899

Last observed

10 July 1899

Residual RMS

1.13 ″

Solution · Otto Matic

15 April 2021

Discovery & classification

Also known as 1899 E1