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10:1305/12 CST▶ 直播
任务档案 · MISSION
NROL-172
SpaceX · 猎鹰 9 Block 5 · 4E 号发射工位 (SLC-4E)
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任务简介
为美国国家侦察局（NRO）建造的侦察卫星星座的第十三批卫星，由SpaceX和诺斯罗普·格鲁曼公司联合研制，提供成像及其他侦察能力。
原文
Thirteenth batch of satellites for a reconnaissance satellite constellation built by SpaceX and Northrop Grumman for the National Reconnaissance Office to provide imaging and other reconnaissance capabilities.
飞行时间线 Flight Timeline19 节点
T−38:00
加注决议通过GO for Prop Load
Launch director verifies go for propellant load
T−35:00
一级 LOX (液氧) 加注Stage 1 LOX Load
Start of liquid oxygen loading in the first stage
T−35:00
推进剂加注开始Prop Load
Start of propelland loading
T−16:00
二级 LOX (液氧) 加注Stage 2 LOX Load
Start of liquid oxygen loading in the second stage
T−07:00
发动机预冷Engine Chill
Start of engine chilling
T−01:00
燃料箱增压Tank Press
Fuel tanks are pressurized to flight levels
T−01:00
自动倒数启动Startup
The onboard computer takes control over the countdown and runs last checks
T−00:45
发射决议通过GO for Launch
Launch director verifies go for launch
T−00:03
点火Ignition
Start of the engine ignition sequence
T+00:00
升空Liftoff
First upwards movement of the rocket
T+01:06
最大动压点Max-Q
Maximum dynamic pressure
T+02:25
主发动机关机MECO
Cut-off of the main engine
T+02:29
二级分离Stage 2 Separation
Separation of the second stage from the first
T+02:36
二级发动机第一次启动SES-1
First start of the second engine
T+02:53
整流罩分离Fairing Separation
Separation of the payload fairing
T+06:15
再入减速点火Entry Burn Startup
Start of the atmospheric entry burn
T+06:38
再入减速关机Entry Burn Shutdown
End of the atmospheric entry burn
T+08:06
一级着陆减速点火Stage 1 Landing Burn
Start of the first stage landing burn
T+08:30
一级着陆Stage 1 Landing
Landing of the first stage
任务更新11 条
12:0405/12
Launch success.
↗ 链接10:1405/12
Unofficial Re-stream by SPACE AFFAIRS has started
↗ 链接10:1405/12
Liftoff.
↗ 链接09:5905/12
Unofficial Re-stream by SPACE AFFAIRS has started
↗ 链接16:4805/11
Now targeting May 12 at 02:13 UTC
↗ 链接04:1205/08
Now targeting May 11 at 22:28 UTC
↗ 链接01:1405/08
Reverted back to May 13.
↗ 链接00:2105/08
Now targeting May 11 at 22:28 UTC
↗ 链接02:3905/07
GO for launch.
↗ 链接22:0605/06
Delayed to May 13.
↗ 链接00:4805/02
Added launch.
↗ 链接