How it works
Users can choose to receive images and/or data from regions, dates, and times of interest. As soon as the satellite data are collected and processed, all subscribers receive copies of the data and/or images they requested. The files requested are placed on an ftp site for retrieval (they can also be put on your own ftp site if you have one). If desired, users will also receive an email each time an order is ready.  

Images (JPEGs) are available in three sizes: small, medium, and large. The data files are in HDF-EOS format - for more information on this type of file, see the advanced website.