任务档案 · MISSION

GPS III SV07 (RRT-1)

SpaceX · 猎鹰 9 Block 5 · 40 号发射工位 (SLC-40)

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任务简介

GPS-III（全球定位系统）是第三代GPS卫星的第一个演进阶段，由前10颗（称为“批次”）GPS III卫星组成。该航天器最初签约由联合发射联盟的火神火箭发射，后因火神火箭发射准备情况的不确定性而改由猎鹰9号发射。因此，它在发射前6个月内以“快速响应开拓者-1”（RRT-1）的名义重新编排。原计划由猎鹰9号发射的GPS III SV10，现在将改由火神火箭发射。

原文

↗ SpaceX

GPS-III (Global Positioning System) is the first evolution stage of the third generation of the GPS satellites. It consists of the first ten (known as "tranche") of GPS III satellites. This spacecraft was original contracted to launch on United Launch Alliance's Vulcan rocket, and was reassigned to Falcon 9 following uncertainties in Vulcan's readiness to launch. As a result it was re-manifested within 6 months of launch under the name Rapid Response Trailblazer-1 (RRT-1). GPS III SV10, originally planned to launch on Falcon 9, will now launch on Vulcan instead.

飞行时间线 Flight Timeline22 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+01:16

最大动压点Max-Q

Maximum dynamic pressure

T+02:33

主发动机关机MECO

Cut-off of the main engine

T+02:36

二级分离Stage 2 Separation

Separation of the second stage from the first

T+02:44

二级发动机第一次启动SES-1

First start of the second engine

T+06:12

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+08:10

二级发动机第一次关机SECO-1

First cut-off of the second engine

T+08:29

一级着陆Stage 1 Landing

Landing of the first stage

T+01:03:33

二级发动机第二次启动SES-2

Second start of the second engine

T+01:04:20

二级发动机第二次关机SECO-2

Second cut-off of the second engine

T+01:29:21

载荷分离Payload Separation

Final deployment of the payload from the rocket

任务更新20 条

11:2112/17

Cosmic_Penguin · 12/17

Launch success.