[Gb-ccb] suggested changes to ccb library

Martin Shepherd mcs at astro.caltech.edu
Tue Aug 12 13:28:21 EDT 2003


On Tue, 12 Aug 2003, John Ford wrote:
>...
> Is there a scheme for time-tagging the data?

Yes, all telemetry is to be time tagged, with the time derived from a
combination of 1PPS and NTP.

>...
> hardware to start the integration.  If extreme (20 millisecond-level
> or better) timing is needed, then hardware augmentation of NTP timed,
> RPC delivered go commands is needed.

Normal scans will be started on the leading edge of the 1PPS
signal. Intra-scans will be started ASAP.

Martin




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