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# Intermagnet CD Data Viewer Help

# Data Catalogue

By clicking on 'View / Data Catalogue' (in the main window) you can display a catalogue which shows all the data that the programme has found. The catalogue is displayed as a table, with years as columns, observatories as rows. For each observatory-year, twelve codes are displayed, one for each month of the year. If the data is present for a month, the code displayed is a small green block. Missing data is displayed as a small red block. If you move the mouse over a cell a detailed description of the data availability will be shown.

Clicking on any of the data codes brings up a popup menu that allows you to access the data for the observatory you have clicked on.

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