EIT data are generally stored in FITS files and users are expected to install and use the SolarSoftware (SSW) tree to manipulate EIT data. This guide assumes that the user has access to the SSW tree.

The SSW tree is a collection of programs to be run using IDL. Manipulating EIT data is extremely difficult without IDL and the SolarSoft tree, because in addition to a large number of data routines, a lot of information is stored on-line as well, such as flat-fields and calibration information.

Once you have a current version of IDL running, you should install the SolarSoftware, including the EIT software set. The EIT software installation page has been designed so that it is easy and quick to use: you should have a functional software tree if you complete each of the steps.

Installing the EIT SolarSoft (SSW) tree: Installing the SSW tree at your site

If you are experiencing difficulty running the software tree, you should check to ensure your environment variables are set properly, and that the IDL startup procedure is properly including the SSW tree:

SolarSoft (SSW) setup: system environment and IDL setup

If you already have the SSW tree installed on your computer, you should make sure that it remains up-to-date:

How to keep your SSW installation current and SSW upgrade information

Chapter 4 contains information on how to manipulate EIT data using the SSW tree, with several examples. However, here are two reference links:

EIT Analysis Software - a brief summary (available on the SolarSoft (SSW) tree)

EIT software examples

EIT User's Guide Index | Chapter 1 | Chapter 2 | Chapter 3 | Chapter 4 | Chapter 5 | Chapter 6 |

Return to the EIT home page

The SDAC home page

The SOHO home page