||Attendance to the workshop is open to all parties interested in the CHRIS/PROBA achievements. However it is imperative that all principal investigators having received CHRIS data present the results from their analysis of 2002, 2003, 2004 and 2005 acquisitions and their plans for 2006. This facilitates a proper assessment of the achievements of the CHRIS/PROBA Earth observation programme. As there will be numerous data requests for 2006 acquisition, priorities for future investigation have to be reviewed at the workshop. Principal investigators unable to attend should arrange to have their presentations on results obtained and data requests made by a representative.