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Commanding requirements

The EOF will establish an interface with the SMOCC that supports both near real-time commanding, the scheduled uplink of commands for the following day, and the ``background'' uplink of long memory loads sent to the EOF from remote PI institutions. Delayed loading capability will include the ability to specify an earliest and latest time of uplink.

A prioritization scheme will be established for uplinking commands.

In cases of instrument anomalies, the SMOCC will support emergency reloads with best available turnaround.

The PI groups will develop procedures for the verification and validation of their own processor loads.

To produce daily and weekly schedules of observations and other spacecraft activities, the Science Operations Coordinator and his/her staff will resolve scheduling conflicts, with the aid of rule-based software if such proves feasible by the time of the SOHO launch.

During real-time contact with the spacecraft, Investigator teams may issue commands for near real-time initiation of command sequences and/or the reconfiguration of instrument operational modes. Issuance of critical or so-called ``spacecraft'' commands will have to be coordinated with the FOT. Any IWS used for commanding will be provided with the status of each command group being handled by the ECS and SMOCC.

The ECS will implement special provisions for accepting command requests from remote institutions, verifying and validating the requests, and then relaying the requests to the SMOCC.

SOHO Archive
Fri Apr 28 14:32:42 EDT 1995