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The Owl’s Night Continues (StriX-β)
火箭实验室 (Rocket Lab) · 电子号 (Electron) · 火箭实验室 1B 号发射工位
任务简介
StriX β 是一颗日本合成孔径雷达卫星，由 Synspective 公司建造，作为其计划中 25 颗卫星星座的演示卫星。它将配备 X 波段合成孔径雷达。 StriX β 是 StriX α 原型卫星的升级版。该卫星有两个可展开的面板，一侧搭载太阳能电池，另一侧搭载 X 波段雷达天线。 StriX 卫星星座能够以 1-3 米的地面分辨率、单极化（VV）和超过 10-30 公里的幅宽获取数据。StriX 的观测模式包括条带模式和滑动聚束模式，每颗卫星的 SAR 天线长度为 5 米，在发射时收拢。卫星的简单设计使得星座的开发成本可控。 StriX β 原计划于 2021 年通过联盟-2-1a 弗雷盖特或联盟-2-1b 弗雷盖特拼车任务发射，但由于该任务推迟，它被重新安排到专用的 Electron KS 发射任务上。 Synspective 公司计划建设一个由 25 颗卫星组成的星座，名为 StriX，每颗卫星重 100 公斤，能够以 1 到 3 米的分辨率成像。到 2022 年，该公司计划在轨运行 6 颗卫星。该公司尚未确定实现 25 颗卫星的目标日期。
原文
StriX β is a Japanese synthetic aperture radar satellite built by Synspective as a demonstrator for their planned 25 satellite constellation. It will feature an X-band synthetic aperture radar. StriX β is an upgraded version of the StriX α prototype. The satellite features two deployable panes, one side carrying solar cells, the other carrying the X-band radar antenna. The StriX satellite constellation can target data with a ground resolution of 1-3 m, single polarized (VV), and a swath width of more than 10-30 km. The StriX observation modes are Stripmap and Sliding Spotlight mode and each satellite has an SAR antenna that is 5 meters in length and stowed during launch. The simple design of the satellites allows for affordable development of the constellation. StriX β was planned to be launched in 2021 on a Soyuz-2-1a Fregat or Soyuz-2-1b Fregat rideshare mission, but as this mission was delayed, it was re-booked on a dedicated Electron KS launch. Synspective is planning a constellation of 25 satellites called StriX, comprised of 100-kilogram satellites capable of imaging at a resolution of one to three meters. By 2022 the company plans to have six satellites in orbit. The company has not set a date by which it hopes to achieve 25 satellites.
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