Atlas V 521 | Rainbow 1
Operated by Lockheed Martin, the Communications mission Atlas V 521 | Rainbow 1 delivered its payload into GSO.
- Launch time
- Status
- SUCCESS
- Operator
- Lockheed Martin
- Mission type
- Communications
- Rocket
- Atlas V 521
- Launch site
- Cape Canaveral SFS, FL, USA
- Launch pad
- Space Launch Complex 41
- Payload
- —
- Target orbit
- GSO

Mission timeline
- 2003-07-17T23:45:01.000ZAtlas V 521 lifts off from Cape Canaveral SFS, FL, USA.
- Atlas V 521 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 GSO.
- Mission success — all objectives completed.