SMM is a comet in the Parabolic comet orbit class. Its closest approach to the Sun is 0.01 AU.
Orbital elements
- Eccentricity
- 1
- Inclination
- 144.47°
- Perihelion
- 0.006 AU
- Longitude of ascending node
- 3.66°
- Argument of periapsis
- 82.63°
- Epoch · J2000
- JD 2447086.52700 (perihelion)
- Orbit class · PAR
- Parabolic comet
Orbit quality
- Data arc
- 0 hours
- First observed
- 17 October 1987
- Last observed
- 17 October 1987
Discovery & classification
Also known as 1987 U4
Named
Sources
- orbital elements: JPL SBDB