Daichi
日本宇宙航空研究开发机构 (JAXA) · H-IIA 2022 · 吉信发射综合体 LP-1
任务简介
ALOS（先进陆地观测卫星）用于制图、区域观测、灾害监测和资源调查。 ALOS 搭载了三台遥感仪器： - 用于数字高程测绘的立体测绘全色遥感仪（PRISM），分辨率 2.5 米； - 用于精确土地覆盖观测的先进可见光和近红外辐射计 2 型（AVNIR-2），分辨率 10 米； - 用于昼夜和全天候陆地观测的相控阵 L 波段合成孔径雷达（PALSAR）。 ALOS 通过 DRTS（Kodama）卫星传输数据。 ALOS 由 H-2A-2022 运载火箭从种子岛航天中心发射升空。ALOS 被赋予昵称“大地”。 航天器分离五分钟后，ALOS 开始展开其 72 英尺长的太阳能电池板，该电池板将在整个任务期间为航天器提供电力。星上搭载了六台摄像机，用于目视验证太阳能电池板和各种仪器天线的正确展开。 ALOS 于 2011 年 4 月 22 日完全失去电力，任务就此结束。
原文
ALOS (Advanced Land Observation Satellite) is used for cartography, regional observation, disaster monitoring, and resource surveying. ALOS has three remote-sensing instruments: - the Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM) for digital elevation mapping with 2.5 meter resolution, - the Advanced Visible and Near Infrared Radiometer type 2 (AVNIR-2) for precise land coverage observation with 10 meter resolution, and - the Phased Array type L-band Synthetic Aperture Radar (PALSAR) for day-and-night and all-weather land observation. ALOS transmitts its data via the DRTS (Kodama) satellite. The ALOS was launched by an H-2A-2022 launch vehicle from the Tanegashima Space Center. ALOS as been given the nickname Daichi. Five minutes after spacecraft separation, ALOS began to unfurl its 72-foot solar array that will provide electrical power to the craft throughout its mission. Six cameras are on-board to visually verify the correct deployment of the solar panel and various instrument antennas. ALOS lost all power on 22. April 2011, thus ending the mission.
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