Vanguard | Vanguard II
Vanguard | Vanguard II rode a Vanguard into space from Cape Canaveral SFS, FL, USA, deploying its payload to MEO.
- Launch time
- Status
- SUCCESS
- Operator
- US Navy
- Mission type
- Earth Science
- Rocket
- Vanguard
- Launch site
- Cape Canaveral SFS, FL, USA
- Launch pad
- Launch Complex 18A
- Payload
- —
- Target orbit
- MEO

Mission timeline
- 1959-02-17T15:55:00.000ZVanguard roars off the pad at Cape Canaveral SFS, FL, USA.
- The vehicle reaches Max Q, the highest aerodynamic load of the flight.
- MECO — first-stage propulsion ends after a nominal burn.
- Clean stage separation confirmed.
- The upper-stage engine lights up after separation.
- Orbit insertion confirmed — now circling in MEO.
- All mission objectives achieved.