任务档案 · MISSION

Michibiki 5 (QZS-5)

三菱重工 · H3-22 · 吉信发射综合体 LP-2

任务失利 · 查看事故通报

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任务简介

QZSS（准天顶卫星系统）是日本的一个卫星导航系统，运行于倾斜椭圆地球同步轨道，以在城市峡谷和山区实现最佳的高仰角可见性。该导航系统的目标是通过三颗卫星组成的星座，广播与GPS兼容的信号、增强信号以及日本原创的QZSS信号。该导航系统的目标是通过位于倾斜椭圆地球同步轨道的三颗卫星星座，广播与GPS兼容的信号、增强信号以及日本原创的QZSS信号。

原文

QZSS (Quasi Zenith Satellite System) is a Japanese satellite navigation system operating from inclined, elliptical geosynchronous orbits to achieve optimal high-elevation visibility in urban canyons and mountainous areas. The navigation system objective is to broadcast GPS-interoperable and augmentation signals as well as original Japanese (QZSS) signals from a three-spacecraft constellation. The navigation system objective is to broadcast GPS-interoperable and augmentation signals as well as original Japanese (QZSS) signals from a three-spacecraft constellation in inclined, elliptical geosynchronous orbits.

事故描述

整流罩分离后，第二级液氢罐压力异常开始下降，导致第二级第一次点火比计划长27秒，发动机在第二次点火开始后1秒关机。有效载荷被困在低地球轨道，不久后重返大气层。

飞行时间线 Flight Timeline10 节点

T+00:00

升空Liftoff

First upwards movement of the rocket

T+01:56

助推器分离Booster Separation

The side boosters are separated from the launcher.

T+03:45

整流罩分离Fairing Separation

Separation of the payload fairing

T+04:59

主发动机关机MECO

Cut-off of the main engine

T+05:07

二级分离Stage 2 Separation

Separation of the second stage from the first

T+05:20

二级发动机第一次启动SES-1

First start of the second engine

T+12:48

二级发动机第一次关机SECO-1

First cut-off of the second engine

T+24:46

二级发动机第二次启动SES-2

Second start of the second engine

T+29:05

二级发动机第二次关机SECO-2

Second cut-off of the second engine

T+29:26

载荷分离Payload Separation

Final deployment of the payload from the rocket

任务更新14 条

14:5412/22

Cosmic_Penguin · 12/22

Launch failure.

10:0712/22

LL2 · 12/22

Official Webcast by JAXA | 宇宙航空研究開発機構 has started

09:5112/22

Cosmic_Penguin · 12/22

Liftoff.

08:5312/22

LL2 · 12/22

Official Webcast by JAXA | 宇宙航空研究開発機構 has started

15:0912/20

Cosmic_Penguin · 12/20

Refined launch window.

00:1512/20

Cosmic_Penguin · 12/19

Rescheduled for December 22.

10:1612/17

Cosmic_Penguin · 12/17

Scrubbed for the day.

10:1212/17

Cosmic_Penguin · 12/17

Hold at T-13 seconds.

09:1512/17

Cosmic_Penguin · 12/17

Tweaked T-0.

13:0412/15

Cosmic_Penguin · 12/15

Tweaked launch window.

00:0012/14

Cosmic_Penguin · 12/13

Rescheduled for December 17.

21:2712/03

Cosmic_Penguin · 12/03

Launch delayed due to problems with the Inertial Measurement Unit (IMU) on the H3 2nd stage, new launch date TBD.

13:1910/08

Cosmic_Penguin · 10/08

GO for launch.

22:3001/09

Cosmic_Penguin · 01/09

Tweaked approximate launch date per launch manifest (P.129 of source).