ISOCAM data, as any other ISO data, can be retrieved from the ISO Data Archive (IDA) by establishing an internet connection with the Java-based user interface found at:
https://www.cosmos.esa.int/web/iso 
Access the Archive
which allows the user to pursue enquiries in a very flexible and intuitive way. Note, however, that to be able to retrieve ISO data, the user has to register first as an IDA user by sending an e-mail to the ISO Helpdesk ( helpdesk@iso.vilspa.esa.es), or by filling in the form available in IDA, which can be found by clicking first on the button `Login/Register' and then on `Register As New User'.
All users (even those not registered) can perform queries during an IDA session by filling in the `Query Specification' panel, and can submit them by clicking the `Execute Query' button. The list of individual observations (TDTs) matching a query will then be displayed together with their associated `Browse Products' (see Section 7.4) in the `Latest Results' screen.
At this stage, only authorised registered users will be able to proceed further with data retrieval. Once logged-in, the authorised user can move all, or a sub-sample, of the selected observations to the `Shopping Basket'. Then, by clicking on the `Shopping Basket' button the list of observations selected for data retrieval will be displayed.
Different categories of data products are offered for retrieval, ranging from `Raw Data' to `Fully Processed Data', and including some `Quick Look' data products derived from the fully processed data.
Users can also customize their requests by selecting the option `CUSTOM' under the `Products Desired' menu in the `Shopping Basket' screen and then clicking on the `Define Custom' button. The whole variety of data products available will then be displayed in the `Custom Dataset Definition' screen, including the option to retrieve the calibration files used in the Off-line Processing Pipeline (OLP).
For a detailed description of the available ISOCAM data products and calibration files the user is referred to Chapters 5, 6 and 7. The selection of the specific files to retrieve will essentially depend on whether the user wants the data in the form of final products, fully processed with the standard pipeline and ready for scientific use (CMAP, CMOS, CPSL, CSSP, CUFF, CCIM, CGLL and CJAM), or as lower level data products (CSTA, CIER, CDER, CISP and the calibration files), which are suitable as the starting point for interactive analysis with CIA.
Once the desired data products are selected and the request submitted, an e-mail is received by the user explaining how to download the products via anonymous ftp.