Saturn IB | Apollo AS-203
National Aeronautics and Space Administration flew Saturn IB | Apollo AS-203 on a Saturn IB out of Cape Canaveral SFS, FL, USA, placing its payload in LEO.
- Launch time
- Status
- SUCCESS
- Operator
- National Aeronautics and Space Administration
- Mission type
- Test Flight
- Rocket
- Saturn IB
- Launch site
- Cape Canaveral SFS, FL, USA
- Launch pad
- Space Launch Complex 37B
- Payload
- —
- Target orbit
- LEO

Mission timeline
- 1966-07-05T14:53:17.000ZLiftoff confirmed — Saturn IB is airborne.
- Max Q — Saturn IB endures peak structural stress during ascent.
- First-stage main engine cutoff (MECO) confirmed.
- The spent first stage separates from the upper stage.
- Upper stage ignites, continuing the journey toward orbit.
- The mission reaches LEO, successfully entering orbit.
- The mission concludes successfully.