EVERYTHING SPACE · MISSION CONTROL · FIRING ROOM

Long March 4B | Yaogan 53-07 to 09/56-19 to 21

Launch Successful · China Aerospace Science and Technology Corporation · Jiuquan Satellite Launch Center

THE BIG BOARDLONG MARCH 4B | YAOGAN 53-07 TO 09/56-19 TO 21SUCCESS

Flight dynamics

VehicleLong March 4B

PadLaunch Area 94 (SLS-2 / 603)

Window19:17 UTC → 19:39 UTC

Provider record620 flights

Fri, 23 Oct 2026 19:25:00 GMT

NO BROADCAST ANNOUNCED — MANY FLIGHTS ARE NEVER STREAMED

Sequence of events

No public timeline — the countdown is the schedule.

Launch Successful · China Aerospace Science and Technology Corporation · Jiuquan Satellite Launch Center, People's Republic of China· every number on this board is Launch Library’s

The room is drawn · the board is real · desk screens glow, and deliberately say nothing

The watch party

● 1 in the room

Nobody has said anything yet. Launch days fill this up.

Ascent profile

Shown when a Flight Club simulation exists for this mission — never another flight’s.

The room next door

Full mission page →

The launch-day thread →

Every window →

Schedule, vehicle, pad and sequence: Launch Library 2 · trajectory and ascent: Flight Club · the clocks run on yours · data refreshes each minute