Comet · 9P
9P/Tempel 1
An impact experiment and a return visit
Deep Impact struck Tempel 1 with an impactor in 2005. Stardust later revisited the nucleus, providing another view of the terrain.
Measurements
- Effective diameter
- 6 km
- Semimajor axis
- 3.146 AU
- Orbital period
- 2,038.282 Earth days
Orbit, physical values and uncertainties
- eccentricity
- .5097028326964878 ± 4.623E-8
- semi-major axis
- 3.146133758958915 au ± 8.9632E-8
- perihelion distance
- 1.542540469975507 au ± 1.722E-7
- inclination; angle with respect to x-y ecliptic plane
- 10.4734281543904 deg ± 4.1756E-6
- longitude of the ascending node
- 68.75357468050096 deg ± 3.6987E-5
- argument of perihelion
- 179.1972753698572 deg ± 3.8173E-5
- mean anomaly
- 336.5854438553629 deg ± 5.8245E-6
- time of perihelion passage
- 2457603.070724568248 TDB ± 3.3292E-5
- sidereal orbital period
- 2038.281680411032 d ± 8.7105E-5
- mean motion
- .1766193571083874 deg/d ± 7.5477E-9
- aphelion distance
- 4.749727047942323 au ± 1.3532E-7
- comet total magnitude
- 12.9 ± 0.7
- comet total magnitude slope
- 9.
- diameter
- 6.0 km ± 0.2
- extent
- 7.6x4.9 km
- rotation period
- 40.7 h
- geometric albedo
- 0.05 ± 0.02
Published JPL orbital elements describe their stated epoch; they are not current positions. Small-body diameters can be effective/model-dependent sizes, not spherical shapes. Missing measurements remain unavailable. Pluto’s diameter uses the New Horizons reference rather than an empty SBDB field. Orbital epoch: JD 2457470.5 TDB.
Object reference ↗Missions & milestones
2 launches · 0 connected events
These are target-related flights and every connected programme record in the production catalogue. A connected event may concern another stage or target of the same journey. Launch outcome does not establish arrival or current operation.
Deep Impact (DIF)
January 12, 2005 · UTC
Stardust
February 7, 1999 · UTC
Complete source cohort: 9,386 records.