Envisat / Polar Platform Hydra test

The Polar Platform structural model shown during preparation for the sinusoidal vibration qualification test on ESTEC's new Hydra hydraulic shaker. Work is underway by the prime contractor, Matra Marconi Space-Bristol, on the solar array dummy panel placed on the spacecraft's zenith face using the 'genie boom'. At PLM's top right side is the star tracker. [Image Date: 01-01-97] [97.01.011-034]