In the frame of the EDA program, a web-based user questionnaire was developed by the EDA team with regard to the proposed Tandem-L satellite mission. The aim of this questionnaire was threefold: Firstly, the EDA scientists wanted to know whether the developed Tandem-L products are of interest to the national community; secondly the specifications of the products had to be confirmed by a wider user community and thirdly the coverage of the products and their timeliness have been requested to be confirmed or reported about their needs.

We would like to thank all participants who have taken the time to complete the questionnaire. These responses helped us to improve the Tandem-L higher level product specifications. The results are now available under the following links.