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Figure 7.2:
The FOV and Image Servers panel that is located below the Visual Spatial Editor.
|
The FOV Parameter panel allows the user to manipulate the field ofview of each pointing centre i.e. the size of the circles drawn onthe Visual Spatial Editor.
-
Frequency used
: Rest frequency used to determine the Field of View. This is usually set by the frequencies set in the Spectral Setup node of a Science Goal, but can be changed by the user.
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Refresh
: Update the frequency field.
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(taken from)
: This states where the displayed frequency was taken from. It is blank if a user enters their own value.
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Antenna Diameter
: Antenna diameter that shall be used for calculation of the primary beam size (
). Choices are usually 12m (Main array) and 7m (ACA), but this option is disabled for Cycle 0.
-
Main beam size
: Diameter of the primary beam based on the antenna diameter and observing frequency. This field is for information only and cannot be edited.
-
Show FOV (circle)
: Select this if you would like the Field of View of each telescope pointing to be displayed. This is enabled by default.
Next:
Image Query
Up:
The Visual Spatial Editor
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Tool Bar and Zooming
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The ALMA OT Team, 2011 May 20