Ziyuan-3-04
中国航天科技集团 (CASC) · 长征四号乙 (CZ-4B) · 9 号发射工位 (LC-9)
任务简介
ZY-3（资源三号）系列是中国首个用于民用领域的高分辨率立体测绘卫星。 第二颗卫星由卫星测绘应用中心（SASMAC）管理。 成像有效载荷包括一个三线阵相机和一个多光谱成像仪。 用于获取立体影像的三线阵全色相机由三台望远镜相机组成，其中一台指向天底方向，另外两台分别沿飞行方向前后倾斜22°。ZY-3的立体测绘相机天底方向分辨率为2.1米，倾斜相机分辨率为2.6米，幅宽为51公里。 用于环境和植被监测的多光谱成像仪由三镜望远镜和冷却探测器系统组成，对四个波段敏感，可获取全色影像及近红外数据。该系统的地面分辨率为5.8米。
原文
The ZY-3 (Ziyuan-3, 'Resource-3') series represents China's first high-resolution, stereoscopic mapping satellites for civilian use. The second satellite is managed by the Satellite Surveying and Mapping Application Center (SASMAC). The imaging payload consists of a three-line camera array and a multispectral imager. The three-line panchromatic camera array to acquire stereoscopic imagery consists of three telescopic cameras with one oriented to the nadir and the other two each offset by 22° forward and backward in flight direction. The stereo mapping camera of ZY-3 has a resolution of 2.1 m for the nadir camera, and 2.6 m for the offset cameras. The swath width is 51 km. The multispectral imager for environmental and vegetation monitoring consists of a three-mirror telescope and a cooled detector system sensitive to four wavelength bands to capture full-color imagery as well as near-infrared data. The ground resolution of this system is 5.8 m.
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