任务档案 · MISSION

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

成功

任务成功

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任务简介

一批20颗卫星，用于OneWeb卫星星座，该星座旨在为个人消费者提供全球互联网宽带服务。该星座计划由约648颗微型卫星（其中60颗为备用）组成，每颗约150公斤，在低地球轨道上使用Ku波段运行。

原文

↗ SpaceX

A batch of 20 satellites for the OneWeb satellite constellation, which is intended to provide global Internet broadband service for individual consumers. The constellation is planned to have around 648 microsatellites (of which 60 are spares), around 150 kg each, operating in Ku-band from low Earth orbit.

飞行时间线 Flight Timeline34 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

自动倒数启动Startup

The onboard computer takes control over the countdown and runs last checks

T−01:00

燃料箱增压Tank Press

Fuel tanks are pressurized to flight levels

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+02:15

主发动机关机MECO

Cut-off of the main engine

T+02:19

二级分离Stage 2 Separation

Separation of the second stage from the first

T+02:27

二级发动机第一次启动SES-1

First start of the second engine

T+02:32

助推器返回点火Booster Boostback Burn Startup

Start of the booster boostback burn

T+03:02

整流罩分离Fairing Separation

Separation of the payload fairing

T+03:28

助推器返回关机Booster Boostback Burn Shutdown

End of the booster boostback burn

T+06:18

再入减速点火Entry Burn Startup

Start of the atmospheric entry burn

T+06:33

再入减速关机Entry Burn Shutdown

End of the atmospheric entry burn

T+07:18

一级着陆减速点火Stage 1 Landing Burn

Start of the first stage landing burn

T+07:56

一级着陆Stage 1 Landing

Landing of the first stage

T+08:29

二级发动机第一次关机SECO-1

First cut-off of the second engine

T+55:03

二级发动机第二次启动SES-2

Second start of the second engine

T+55:06

二级发动机第二次关机SECO-2

Second cut-off of the second engine

T+59:03

载荷分离Payload Separation