(redirected from Grain Impact Analyser and Dust Accumulator)
GIADAGrain Impact Analyser and Dust Accumulator (astronomy project)
GIADAGeorgia Independent Auto Dealers Association (Austell, GA)
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These include the A-STR Autonomous Star TRacker, which correctly orientated the Rosetta probe in space and adjusted the antenna to allow signals to be received from Earth; the NAVCAM camera, which aided in the probe s navigation; the VIRTIS (Visible InfraRed and Thermal Imaging Spectrometer) instrument which measured the temperature of various features on the comet; the GIADA (Grain Impact Analyser and Dust Accumulator) which analysed the comet s dust and particles and the photovoltaic assembly, the widest ever produced for an ESA scientific mission with a surface measuring 62 square metres.