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:(NET) Electron • Celeste 1–2 DTSTART;VALUE=DATE:20251215 DTEND;VALUE=DATE:20251216 UID:709845770934 DESCRIPTION:A Rocket Lab Electron rocket will launch a pair of Celeste LEO -PNT (Low Earth Orbit Positioning\, Navigation and Timing) Pathfinder A sa tellites for ESA into a 510km low Earth orbit. Provided by European satell ite prime contractors Thales Alenia Space and GMV they will test a new app roach of providing location\, direction\, and timing services from satelli tes in low orbit and its contribution to a multi-layer navigation system. ESA's LEO-PNT demonstration mission is part of the FutureNAV program and w ill assess how a low Earth orbit fleet of satellites can work in combinati on with the Galileo and EGNOS constellations in higher orbits that provide Europe's own global navigation system. Rocket Lab's mission will be named "?".\n-\nThe two Pathfinder A satellites are large CubeSats (12U and 16U) the size of a suitcase weighing around 20kg and 30kg with payloads to bro adcast in L- and S- bands. They will validate the system definition and ea rly signal broadcast\, de-risk and demonstrate technology for the core ele ments for succeeding LEO-PNT satellites. They will operate after in-orbit commissioning for at least six months. Pathfinder B satellites are larger and more complex and will build on the knowledge acquired during the desig n\, development and integration of Pathfinder A satellites. They will carr y additional payloads to test innovative signals across frequency bands an d demonstrate the provision of additional services.\nThe Celeste 10-satell ite constellation (plus two spares) will fly in low Earth orbit to test in novative signals across various frequency bands. It is being developed und er two parallel contracts with GMV (Spain) and Thales Alenia Space (France ) as prime contractors. LOCATION:Rocket Lab Launch Complex 1\, Māhia 4198\, Neuseeland END:VEVENT END:VCALENDAR