homeabout actremote sensing productsservicesinteractive resourcese-mail
Data Hosting and Image ProcessingSatellite Mission Support


Clementine was a joint DOD/NASA effort that was undertaken to test light-weight sensors and electronics for military and civil applications. The BMDO/NRL/LLNL team designed, developed and launched the Clementine spacecraft in two years. The Clementine spacecraft imaged the whole Moon at high resolution in 11 spectral bands while also providing partial coverage in other 6 spectral bands. During a period of two months over 5,000 Moon images were received on each orbit with images arriving almost every 5 hours. Most of the data was compressed in the satellite using JPEG type of compression. During the mission ACT processed over 240 Gbytes of multispectral image data.

ACT was responsible for all front end image processing effort related to the Mission Operations of the Clementine Satellite Program. ACT's support to Clementine included management, planning and execution of the following:

Design and evaluation of data compression parameter sets to be used by the Clementine program.
  Development of custom Image Processing Software.
  Image processing system integration using low cost high performance hardware. ACT's PC based MSHELL workstations were used to perform all the Mission operations image processing.
 

24/7 image processing support for:

Quick-look sensor data analysis (image decompression and basic image statistics were used to establish that sensors were operating within the right performance bounds).
  Pointing assessment (pointing computation and validation through map projections).
  Archival and formatting of all the image data into the Planetary Data System Format (PDS).
  Production of quick-look results (radiometric, images, mosaics).

ACT established the equivalent of a Remote Access Center for Clementine Data. This center allowed members of the Mission Operations group to have access to all image data over the local area networks including Internet.

In recognition of its efforts and contribution to Clementine ACT’s was presented with a NASA Exceptional Scientific Achievement Award:

“For the processing of all the Clementine images and necessary ancillary information in a form compatible with NASA's planetary data system and the preparation of an archival data set for broad distribution to the scientific community.”

ACT continues to work with NASA on the inflight calibration of the Clementine cameras.

Please click here to browse Clementine Interactive.

 

| Home |about act | remote sensing products | services | interactive resources | e-mail |

For more information, please contact us at info@actgate.com
112 Elden St., Suite K, Herndon, VA 20170, USA, +1 (703) 742-0294
Copyright © 2001, Applied Coherent Technology Corporation