NRC Warns Landsat-Type Data Not Sustainable Under Current Practices, Space Policy Online
"The National Research Council (NRC) today issued its much-anticipated report on how to ensure continuity of Landsat-type land imaging data. The bottom line is that a sustained program is not viable under current mission development and management practices. Instead, the NRC calls for a "systematic and deliberate program" instead of the "historical pattern of chaotic programmatic support and ad hoc design and implementation of spacecraft and sensors" that has characterized the Landsat program to date.
... In short, the report calls for a "systematic and deliberate program with the goal of continuing to collect vital data within lower, well-defined, manageable budgets" to "replace the historical pattern of chaotic programmatic support and ad hoc design and implementation of spacecraft and sensors in the Landsat series.""