BEGIN:VCALENDAR VERSION:2.0 PRODID:-//chikkutakku.com//RDFCal 1.0//EN X-WR-CALDESC:GoogleカレンダーやiCalendar形式情報を共有シェ アしましょう。近所のイベントから全国のイベントま で今日のイベント検索やスケジュールを決めるならち っくたっく X-WR-CALNAME:ちっくたっく X-WR-TIMEZONE:UTC BEGIN:VEVENT SUMMARY:Long March CZ-2D • Hongtu 13–16 DTSTART;VALUE=DATE:20250824 DTEND;VALUE=DATE:20250825 UID:299528380484 DESCRIPTION:A Chinese Long March (Chang Zheng) CZ-2D rocket will launch fo ur PIESAT formation-flying SAR satellites for the Hangtian Hongtu constell ation into orbit. This fourth group of satellites consists of one 320kg ma in sat (named Zhongyuan 2?) and three 270kg accompanying sats (named ?)\, that operate in the X-Band using very long baseline interferometry. They a re also designated as PIESAT/Hongtu 2-05 to 2-08. These satellites make up the first wheel-pattern satellite formation\, with the master satellite i n the center of an imaginary hub and the three assistant satellites distri buted evenly on the spokes. The formation uses phase synchronization and i nter-satellite communication links to enable accurate orbit control\, ensu ring its stability and spatial safety. According to GalaxySpace the wheel- pattern formation\, in comparison to conventional interferometric satellit e systems\, has the advantages of a relatively stable formation configurat ion\, multiple interference baselines\, and high mapping efficiency. These satellites' millimeter-level deformation monitoring capability\, which ca n provide data support for the investigation and prevention of land subsid ence\, collapse\, landslides\, and other disasters\, makes them a powerful tool for early identification of major geological hazards in complex area s. The CZ-2D launcher will fly with a 3.8m composite fairing.\n-\nDelayed from Mar. 15 and May 16. LOCATION:Launch Complex 9 - Taiyuan Satellite Launch Center https://goo.gl /maps/AMZU5LFG8p2YtuQj7 END:VEVENT END:VCALENDAR