Long March 4B | Ziyuan-3-04
The Earth Science flight Long March 4B | Ziyuan-3-04 departed Taiyuan Satellite Launch Center, People's Republic of China atop a Long March 4B, bound for SSO.
- Launch time
- Status
- SUCCESS
- Operator
- China Aerospace Science and Technology Corporation
- Mission type
- Earth Science
- Rocket
- Long March 4B
- Launch pad
- Launch Complex 9
- Payload
- —
- Target orbit
- SSO

Mission timeline
- 2025-12-16T03:17:00.000ZLong March 4B roars off the pad at Taiyuan Satellite Launch Center, People's Republic of China.
- 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 SSO.
- All mission objectives achieved.