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The NCCS should be at least as performant as the existing HP 1000 control system. No official figures exist for the HP 1000 but from discussions with staff this implies guaranteeing a minimum of a 10 Hz control cycle with 50 Hz being desirable. The new system must also be capable of generating logfiles and network access at that speed as well.

Number crunching requirements will be determined by calculations required for the different observing programs e.g. doppler (VLSR), pulsar ephemerides, planet positions.

Mike Gaylard