任务档案 · MISSION

Polaris Dawn

SpaceX · 猎鹰 9 Block 5 · 39A 号发射工位 (LC-39A)

成功

任务成功

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任务简介

私人资助的北极星计划首次任务。该任务将在轨持续长达五天，目标是飞得比以往任何龙飞船任务更高，穿着SpaceX设计的宇航服进行首次商业太空行走，穿越范艾伦辐射带的部分区域，开展医学研究，并测试基于激光的星链太空通信。

原文

↗ SpaceX ↗ Polaris Dawn

First mission of the privately funded Polaris program. The goal of this mission, lasting up to five days in orbit, is to fly higher than previous Dragon missions, perform the first-ever commercial EVA with SpaceX-designed spacesuits, orbit through portions of the Van Allen radiation belt, conduct medical research, and test laser-based Starlink communications in space.

飞行时间线 Flight Timeline24 节点

T−45:00

加注决议通过GO for Prop Load

Launch director verifies go for propellant load

T−42:00

机组登舱臂收回Crew Access Arm Retract

Retraction of the crew access arm from the rocket

T−39:00

发射逃逸系统 (LES) 武装Dragon

Dragon's launch escape system is armed

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−05:00

切换内部电源Dragon

Dragon transitions to internal power

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+00:58

最大动压点Max-Q

Maximum dynamic pressure

T+02:38

主发动机关机MECO

Cut-off of the main engine

T+02:42

二级分离Stage 2 Separation

Separation of the second stage from the first

T+02:51

二级发动机第一次启动SES-1

First start of the second engine

T+07:39

再入减速点火Entry Burn Startup

Start of the atmospheric entry burn

T+08:01

再入减速关机Entry Burn Shutdown

End of the atmospheric entry burn

T+08:59

二级发动机第一次关机SECO-1

First cut-off of the second engine

T+09:11

一级着陆减速点火Stage 1 Landing Burn

Start of the first stage landing burn

T+09:35

一级着陆Stage 1 Landing

Landing of the first stage

T+12:16

飞船与二级分离Dragon

Dragon separates from the second stage

T+12:58

头锥开启Dragon

Start of the opening sequence of Dragon's nosecone

任务更新42 条

17:4109/10

Cosmic_Penguin · 09/10

Launch success.