Simdata New Users Guide 3.1

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Explanation of the guide

This guide is intended to be used as an initial walk-through of how to use simdata. We will start with an image similar to something that might be observed with ALMA, and then we will show how to rescale the image and predict how it will look when observed with different antenna configurations.

We will assume only a general knowledge of interferometry and no specific knowledge of CASA.

Getting Started

The two things you need to get started are:

  • The image to work with
  • The current version of CASA

To get the image, download the Spitzer IRAC 8 micron image of 30 Doradus from the Simulation Inputs CASA Guide page.

To install CASA, follow the instructions given here. This guide was written for CASA version 3.1

Using CASA

Because simdata is a task within CASA, we start here with a brief introduction to some CASA basics.

Using Simdata

Getting Your Input Image Into Simdata

Defining the Mock Observations


Antenna Positions and Observation Time

Choosing the Simdata Output Images