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Most remotely controlled spacecraft and rovers do not use text-based commands. Instead, each command has a unique identifier, a command-specific data structure that contains data specific to that command, and data (e.g. checksums) that confirm the command and data are valid. All of the data are binary rather than text-based. The Mars rovers use a sequenced ...


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For shuttle which used a MIL-STD-1553 bus system for its flight critical functions, a command consisted of some header information (mostly used for validation), the address of the bus terminal unit, card, and channel on the 1553 bus to which the command was to be sent, and a mask to set the desired bits. The commands were made up of one or more 48 bit words. ...


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I emailed Nanoracks with this question and I got an email back from the CEO Jeffrey Manber, who kindly gave me permission to quote him. Which is pretty impressive I must say. So though I am not really satisfied with the answer, there is unlikely to be a better one. It’s a chess piece for us. Got us into a bigger game of hardware outside the International ...


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