DESIS, the DLR Earth Sensing Imaging Spectrometer, was developed by the German Aerospace Center and Teledyne Brown Engineering. DESIS is a hyperspectral imaging spectrometer covering the Visible and Near Infrared optical spectral region (400-1000nm). Bands are natively spaced at ~2.55nm. The Ground Sample Distance or pixel size is ~30m and the image tile size is 30km by 30km. DESIS resides on the MUSES (Multi-User System for Earth Sensing) platform on board the International Space Station. MUSES is inertially stabilized and can be precision tasked to your AOI. DESIS represents a large leap forward in having a reliable, well calibrated, high SNR, hyperspectral sensor in space.
Operating on the ISS presents opportunities and challenges. The ISS provides the advantages of a fast, low cost route to space, instrument return, and opportunity to repair the instrument since it is a manned platform. Imaging is dependent on the ISS orbit and space-based activities, but covers 90% of the populated earth and has frequent cover of the tropics—areas where quality hyperspectral data is limited because of persistent cloud cover.
Teledyne Brown Engineering is the Commercial and Government distributor of DESIS data and the developer of the MUSES platform. NASA and Teledyne Brown Engineering have a cooperative agreement to provide NASA unlimited data. More information can be found on the Access page. Data can be browsed at Teledyne.tcloudhost.com.