News & Views

  • Space Imaging System Reveals Pollution Hot Spots
    DESIS aboard the International Space Station (courtesy: Deutsches Zentrum für Luft- und Raumfahrt (DLR)

Space Imaging System Reveals Pollution Hot Spots

Mar 10 2020 Read 1085 Times

German aerospace centre Deutsches Zentrum für Luft-und Raumfahrt (DLR, Berlin), developers of the DLR Earth Sensing Imaging Spectrometer (DESIS) and US company Teledyne Brown Engineering recently announced the start of routine operations for DESIS on the International Space Station.

Described as the most powerful hyperspectral Earth observation instrument in orbit the spectrometer collects high-resolution image data that could help with provision of measures for environmental protection and also support efficient, ecological use of agricultural land. The ground resolution of 30 metres and spectral resolution of 2.55 nanometres significantly increases the depth of information available for observation. Images acquired shortly after initial setup have identified plastic islands and oil slicks at sea. Its motorised UV-Vis-NIR collimator and interferometric alignment system supplied by Optical Surfaces Ltd, of DESIS made it possible to detect rare Earth elements from space for the first time.

Ilse Sebastian, a Calibration Engineer at DLR commented “By installing the motorised UV-Vis-NIR collimator and interferometric alignment system in our class 100,000 clean room we have been able to undertake diffraction limited broadband imaging for MTF measurement, focusing and geometric calibration of single optics and focal planes, fully integrated camera systems and hyperspectral imaging systems such as DESIS. To monitor and verify that the UV-Vis-NIR collimator system is consistently in alignment, Optical Surfaces also designed and supplied a software-operated Laser Unequal Pathlength Interferometer (LUPI) system to interface with the collimator system.”
For further information visit

Reader comments

Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.

Post a Comment

Digital Edition

Labmate UK & Ireland April 2020

April 2020

In This Edition Articles - Export experts talk Corona Virus - Automated cell counting shouldn’t cost the earth Laboratory Products - Spectrophotometer Linearity Validation - Analysi...

View all digital editions


Laborama 2020 - ONLINE EVENT

Jun 11 2020 Brussels, Belgium


Jun 20 2020 San Diego, CA, USA


Jun 30 2020 Nuremberg, Germany

Korea Lab 2020 - NEW DATES

Jul 27 2020 Kintex, South Korea


Aug 02 2020 Milwaukee, Wisconsin, USA

View all events