Rectangle

This panel is only visible when “1 Rectangular Field” is selected in the Source panel. It is possible to define multiple sources, each of which uses a rectangular field pattern. To do this, one must start with only a single source in the Science Goal. This can be set up as a rectangular mosaic and any further sources that are defined will be forced to use rectangular field patterns.

For each rectangle, the OT will calculate a mosaic pattern for the 12- and 7-m Arrays based on the spacing parameter. A larger version of the user-drawn rectangle will be used for raster scanning with the TP Array. A total of 150 12-m Array pointings is allowed, summed over all rectangles.

A button is provided to export the pointings (12-m and 7-m Array) to an ASCII file on disk. If desired, this can be used as the basis of a set of individual pointings that can be read into the Field Source.

The ALMA OT Team, 2024 May 21