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Introduction

DISH is a collection of Glish scripts and clients which provide an environment within AIPS++ intended to be used for single dish radioastronomy data analysis. Its initial aim is to be a worthy replacement for traditional single dish analysis programs such as UniPOPS. Eventually it will provide access to more advanced data calibration and imaging utilities which will share the same basic design as the sythesis calibration and imaging utilities in AIPS++.

To start DISH, you must type the following at the glish command line after starting AIPS++:

	include "dish.g"

In DISH, wherever practical, what you see is what you are operating on. So, for example, when you press the ``Apply'' button in the ``Baselines'' graphical user interface (GUI) frame of DISH, a baseline will be fit to whatever is currently plotted in the DISH plotter. Results appear in the results manager and, when appropriate, are immediately displayed on the plotter. Results can be moved between the results manager, the calculator, and the browser through the use of a menu which appears when the user presses the right mouse button in one of these frames.

The current state of DISH (the contents of the results manager, the settings of all of the operations, the contents of the calculator, and any active browsers) can be saved at any time either to the default state file or to a location of the user's choosing. DISH can be restored to a previously saved state. By default, DISH saves its state upon exit from glish and restores itself to that same state when DISH is started in a new Glish session.

In this release DISH only uses data in AIPS++ tables which have been filled from FITS binary tables which follow the single dish FITS convention (SDFITS) described in Appendix C. Future versions will interact directly with AIPS++ MeasurementSets containing single dish data.