PRETTY (Passive REflecTometry and dosimeTrY) is a European Space Agency (ESA) In-Orbit Demonstration (IOD) CubeSat funded by Austria under the Fly element of ESA General Support Technology Programme (GSTP), demonstrating for the first time Global Navigation Satellite Systems (GNSS) reflectometry (GNSS-R) at low grazing angles using the E5/L5 frequency, transmitted by the European Galileo and American GPS constellations. It was launched in October 2023 on board VEGA VV23 into a sun-synchronous orbit at 560 km. The GNSS-R payload provides ice and sea ice height measurements to an accuracy of 50 cm, with a special focus on polar regions. PRETTY's second payload, SATDOS-1, is a compact reference dosimeter tailored for CubeSat applications. In this paper, the overall platform architecture and mission design will be presented, followed by the results of the commissioning phase and early scientific data from the two payloads. The platform key telemetry points will be compared against the predictions from analysis work. The overall performances of the VHF link in the Short Duration Mission band will then be provided.
Preliminary in-orbit results of the PRETTY ESA technology CubeSat
Small Satellites Systems and Services Symposium (4S 2024) ; 2024 ; Palma de Mallorca, Spain
Proc. SPIE ; 13546
20.03.2025
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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