SENTINEL - 1
Among the SENER projects for 1- and 2-body mast-deployment mechanisms, projects such as panel deployment of the Sentinel 1 SAR antenna stand out. The Sentinel 1 satellite has a C-band Synthetic Aperture Radar (SAR). Thanks to this SAR instrument, Sentinel 1 will be able to provide high- and medium-resolution data for the observation of land and coastal areas in cloudy areas and at night. It also has a radar with interferometric capabilities for detecting small land movements (at millimetric or sub-millimetric levels.
SENER performs the deployment of the Sentinel 1 SAR antenna, which has five panels (A, B, C, D and E). Of these, the central panel (C) is rigidly fixed to the top of the satellite and the other four (A, B, D and E) will be deployed in relation to panel C in a controlled sequence after the launch. They will then remain locked in the deployed configuration. The four rotating axes are parallel.
At present, SENER is carrying out phase C/D of the system for deploying the four panels of the flat antenna, in accordance with the concept proposed by the customer, based on the deployment system developed by SENER in the ENVISAT satellite. SENER is in charge of motorised deployment and the system for pre-loading the contact points in deployed position by means of latches.
