FPI Control

The FPI has the following functions:

Menu Items: To be done

• File
• Commands
• Imager
• Options

Camera Control (left-hand side):

• The Image button is used to take a single image of the FPI field, with the exposure time set in the box near the top. Exposure times typically range from 0.1-1 sec (bright SNAFU star) to 3-4 sec (fiducial star of 15th mag).
• The Centroid button is used to determine the centroid and FWHM of a star in the FPI field. This is used most often to measure the seeing.
• The Continuous button allows Images and Centroids to be done continuously, until the button is clicked again.
• The Control Options button to be done

Gantry Control (right-hand side):

• The Control Options... button is used to park, unpark, and move the gantry to a given location in the focal plane.

Figure: The FPI control task window, and 8-but VNC display -- used for imaging stars in the focal plane of 2dF