Thor Delta E1 | Pioneer 8
A Thor Delta E1 rocket launched Thor Delta E1 | Pioneer 8 from Cape Canaveral SFS, FL, USA, targeting Helio-N/A.
- Launch time
- Status
- SUCCESS
- Operator
- United States Air Force
- Mission type
- Astrophysics
- Rocket
- Thor Delta E1
- Launch site
- Cape Canaveral SFS, FL, USA
- Launch pad
- Space Launch Complex 17B
- Payload
- —
- Target orbit
- Helio-N/A

Mission timeline
- 1967-12-13T14:08:00.000ZThor Delta E1 lifts off from Cape Canaveral SFS, FL, USA.
- Thor Delta E1 passes through max aerodynamic pressure (Max Q).
- Main engine cutoff — the first stage shuts down as planned.
- Stage separation — the first stage separates cleanly.
- Second-stage engine ignites for the next phase of flight.
- Orbit insertion confirmed — the vehicle is now in Helio-N/A.
- Mission success — all objectives completed.