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- W1514376218 abstract "ESA/ESTEC, Keplerlaan 1, Postbus 299, 2200 AG Noordwijk, The NetherlandsFormation-flying studies to date have required continuous and minute corrections of the orbital elementsand attitudes of the spacecraft. This increases the complexity, and associated risk, of controlling the forma-tion, which often makes formation-flying studies infeasible for technological and economic reasons. Passiveformation-flying is a novel space-flight concept, which offers a remedy to those problems. Spacecraft in apassive formation are allowed to drift and rotate slowly, but by using advanced metrology and statistical mod-elling methods, their relative positions, velocities, and orientations are determined with very high accuracy. Themetrology data is used directly by the payloads to compensate for spacecraft motions in software. The normallyvery stringent spacecraft control requirements are thereby relaxed, which significantly reduces mission com-plexity and cost. Space-borne low-frequency radio astronomy has been identified as a key science applicationfor a conceptual pathfinder mission using this novel approac h. The mission, called FIRST (Formation-flyingsub-Ionospheric Radio astronomy Science and Technology) Explorer, is currently under study by the EuropeanSpace Agency (ESA). Its objective is to demonstrate passive formation-flying and at the same time performunique world class science with a very high serendipity factor, by opening a new frequency window to astron-omy." @default.
- W1514376218 created "2016-06-24" @default.
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- W1514376218 date "2009-11-05" @default.
- W1514376218 modified "2023-09-27" @default.
- W1514376218 title "FIRST Explorer - An innovative low-cost passive formation-flying system" @default.
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