任务档案 · MISSION

星链 9-3

SpaceX · 猎鹰 9 Block 5 · 4E 号发射工位 (SLC-4E)

失利

任务失利 · 查看事故通报

▶ 观看直播

任务简介

一批20颗卫星用于Starlink巨型星座——SpaceX的太空互联网通信系统项目。

原文

↗ SpaceX

A batch of 20 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.

事故描述

氧泄漏导致第二级发动机在第二次点火期间失效，造成所有Starlink卫星丢失。

飞行时间线 Flight Timeline23 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

推进剂加注开始Prop Load

Start of propelland loading

T−35:00

一级 LOX (液氧) 加注Stage 1 LOX Load

Start of liquid oxygen loading in the first stage

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+01:07

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+02:28

二级分离Stage 2 Separation

Separation of the second stage from the first

T+02:35

二级发动机第一次启动SES-1

First start of the second engine

T+03:02

整流罩分离Fairing Separation

Separation of the payload fairing

T+06:01

再入减速点火Entry Burn Startup

Start of the atmospheric entry burn

T+06:27

再入减速关机Entry Burn Shutdown

End of the atmospheric entry burn

T+07:49

一级着陆减速点火Stage 1 Landing Burn

Start of the first stage landing burn

T+08:12

一级着陆Stage 1 Landing

Landing of the first stage

T+08:39

二级发动机第一次关机SECO-1

First cut-off of the second engine

T+52:20

二级发动机第二次启动SES-2

Second start of the second engine

T+52:21

二级发动机第二次关机SECO-2

Second cut-off of the second engine

T+59:14

卫星组释放Starlink

Deployment of the Starlink stack from the rocket

任务更新14 条

19:2407/14

juststephen · 07/14

All satellites are believed to have reentered the atmosphere. Downgrading the outcome to full failure.

↗ 链接

22:4107/12

Nosu · 07/12

A RUD of the second stage engine during its second burn led to deployment of the Starlink satellites into a lower than intended orbit. Some may be salvageable using their onboard propulsion to compensate.

↗ 链接

12:5007/12

Cosmic_Penguin · 07/12

Payload deployment confirmed, orbit data pending.

↗ 链接

10:3507/12

Cosmic_Penguin · 07/12

Liftoff.

↗ 链接

01:5207/12

Nosu · 07/11

T-0 is accurate to the second

↗ 链接

01:5107/12

Nosu · 07/11

Updating window

↗ 链接

23:4107/10

Nosu · 07/10

Delayed by a day

↗ 链接

05:4407/10

Nosu · 07/09

Setting GO

↗ 链接

23:4107/08

Cosmic_Penguin · 07/08

Delayed to NET July 11 UTC per NOTAMs R0161/24.

↗ 链接

01:1607/07

Nosu · 07/06

T-0 is accurate to the second

↗ 链接

01:5807/06

Nosu · 07/05

Delayed to July 9

↗ 链接

01:0707/04

Cosmic_Penguin · 07/03

One day slip per new NOTAMs.

↗ 链接

08:3907/02

Cosmic_Penguin · 07/02

NET July 7 UTC per NOTAMs.

↗ 链接

09:2103/11

Cosmic_Penguin · 03/11

Adding launch.