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ObsUnitSets

Depending on resolution and/or dynamic range goals, and perhaps toensure good ($u,v$ ) coverage, a science target might require more thanone SB. An example would be an extended object that requires both ALMAand the ALMA Compact Array (ACA) - each would have at least oneSB. Please note that even if a single SB is adequate, this may berepeated many times in order to produce the required sensitivity.

The SBs are grouped within ObsUnitSets (OUS). One of the mainfunctions of an OUS is to trigger the pipeline when all the SBs withinhave been observed. It therefore contains information about the dataprocessing parameters, although these are not yet used. It will alsoeventually be possible to define relationships between the SBs (forinstance execute SB A before SB B).



The ALMA OT Team, 2011 May 20