任务档案 · MISSION

NISAR (NASA-ISRO Synthetic Aperture Radar)

印度空间研究组织 (ISRO) · GSLV Mk. II · 萨蒂什·达万航天中心第二发射台

成功

任务成功

▶ 观看直播

任务简介

NASA-ISRO合成孔径雷达（NISAR）卫星将利用先进的雷达成像技术，以5至10米的分辨率，每月对地球陆地和冰盖的高程进行4至6次测绘。该卫星旨在观测和测量地球上一些最复杂的自然过程，包括生态系统扰动、冰盖崩塌以及地震、海啸、火山和滑坡等自然灾害。根据协议条款，NASA将提供任务的L波段合成孔径雷达（SAR）、用于科学数据的高速电信子系统、GPS接收器、固态记录器和有效载荷数据子系统。ISRO将提供卫星平台、S波段合成孔径雷达、运载火箭及相关发射服务。

原文

↗ ISRO’s GSLV-F16 will launch ISRO-NASA joint satellite, NISAR, on July 30, 2025

The NASA-ISRO Synthetic Aperture Radar, or NISAR satellite, will use advanced radar imaging to map the elevation of Earth's land and ice masses 4 to 6 times a month at resolutions of 5 to 10 meters. It is designed to observe and measure some of the planet's most complex natural processes, including ecosystem disturbances, ice-sheet collapse, and natural hazards such as earthquakes, tsunamis, volcanoes and landslides. Under the terms of the agreement, NASA will provide the mission's L band synthetic aperture radar (SAR), a high-rate telecommunication subsystem for scientific data, GPS receivers, a solid-state recorder, and a payload data subsystem. ISRO will provide the satellite bus, an S band synthetic aperture radar, the launch vehicle, and associated launch services.

飞行时间线 Flight Timeline11 节点

T−00:05

点火Ignition

Start of the engine ignition sequence

T+00:00

升空Liftoff

First upwards movement of the rocket

T+02:29

主发动机关机MECO

Cut-off of the main engine

T+02:30

二级发动机启动SES

Start of the second engine

T+02:31

二级分离Stage 2 Separation

Separation of the second stage from the first

T+02:51

整流罩分离Fairing Separation

Separation of the payload fairing

T+04:50

二级发动机关机SECO

Cut-off of the second engine

T+04:53

三级分离Stage 3 Separation

Separation of the third stage from the second

T+04:54

三级发动机点火Stage 3 Ignition

Third stage engine ignites.

T+18:21

三级发动机关机Stage 3 Cutoff

Third stage engine shuts down.

T+18:36

载荷分离Payload Separation

Final deployment of the payload from the rocket

任务更新21 条

23:5207/30

Cosmic_Penguin · 07/30

Satellite in operation.