Delta II was an expendable launch system, originally designed and built by McDonnell Douglas. Delta II was part of the Delta rocket family and entered service in 1989. Delta II vehicles included the Delta 6000, and the two later Delta 7000 variants ("Light" and "Heavy"). The rocket flew its final mission ICESat-2 on 15 September 2018, earning the launch vehicle a streak of 100 successful missions in a row, with the last failure being GPS IIR-1 in 1997.
Specifications
- Thrust
- 3,020 kN
- Height
- 39 m
- Diameter
- 2.44 m
- Launch mass
- 170 t
- Stages
- 4
- Launch cost
- —
- LEO capacity
- —
- GTO capacity
- —
- GEO capacity
- —
- SSO capacity
- —
Vehicle specifications from Launch Library; blanks are unpublished figures.
Flight record
Flights
3
Launches with a definitive outcome
Success rate
100%
3 of 3
Current success streak
3
Landings
0
0 attempts · 0 droneship / 0 RTLS
Fastest turnaround
—
Between consecutive booster flights
Counted from padside's own launch record — the same basis as the Stats page.
Launches
- Delta 7425-9.5 | Contour — Success
- Delta 7425-9.5 | Mars Polar Lander — Success
- Delta 7425-9.5 | Mars Climate Orbiter — Success