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任务档案 · MISSION
QZS-1R
三菱重工 · H-IIA 202 · 吉信发射综合体 LP-1
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任务简介
准天顶卫星系统（QZSS）是一个由三颗卫星组成的区域时间传递系统，也是日本境内可接收的GPS星基增强系统。其主要目的是增加GPS在日本众多城市峡谷中的可用性，在这些地方只能看到极高仰角的卫星。次要功能是性能增强，提高GPS导航解的精度和可靠性。 QZS-1R是2010年发射的QZS-1的替换卫星。
原文
The Quasi-Zenith Satellite System (QZSS) is a three-satellite regional time transfer system and the satellite-based augmentation system for the GPS that would be receivable within Japan. The primary purpose of QZSS is to increase the availability of GPS in Japan's numerous urban canyons, where only satellites at very high elevation can be seen. A secondary function is performance enhancement, increasing the accuracy and reliability of GPS derived navigation solutions. QZS-1R is a replacement satellite for QZS-1 which was launched in 2010.
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