Long March 3B/YZ-1 | Beidou-3 M19 & M20
A Long March 3B/YZ-1 rocket launched Long March 3B/YZ-1 | Beidou-3 M19 & M20 from Xichang Satellite Launch Center, People's Republic of China, targeting the designated orbit.
- Launch time
- Status
- SUCCESS
- Operator
- China Aerospace Science and Technology Corporation
- Mission type
- Navigation
- Rocket
- Long March 3B/YZ-1
- Launch pad
- Launch Complex 3 (LC-3/LA-1)
- Payload
- —
- Target orbit
- Unknown

Mission timeline
- 2019-12-16T07:22:00.000ZLiftoff confirmed — Long March 3B/YZ-1 is airborne.
- Max Q — Long March 3B/YZ-1 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 concludes successfully.