Long March 4B | Shi Jian 6A & 6B
China Aerospace Science and Technology Corporation flew Long March 4B | Shi Jian 6A & 6B on a Long March 4B out of Taiyuan Satellite Launch Center, People's Republic of China, placing its payload in LEO.
- Launch time
- Status
- SUCCESS
- Operator
- China Aerospace Science and Technology Corporation
- Mission type
- Navigation
- Rocket
- Long March 4B
- Launch pad
- Launch Complex 7
- Payload
- —
- Target orbit
- LEO

Mission timeline
- 2004-09-08T23:14:00.000ZLong March 4B lifts off from Taiyuan Satellite Launch Center, People's Republic of China.
- Long March 4B 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 LEO.
- Mission success — all objectives completed.