1. SUBMIT TO: SD102

2. Imaging Spectrometry V, Michael R. Descour and Sylvia S. Shen

3. Multispectral Thermal Imager (MTI) Payload Overview

4. AUTHOR LISTING
R. Rex Kay, Tammy D. Henson, Jeffrey L. Rienstra, Max L. Decker, N. Glenn
Rackley, Paul J. Claassen, Ronald E. Kidner, Richard B. Taplin, David M.
Bullington, Kevin D. Marbach , Chris E. Lanes and     Brian C. Brock
Sandia National Laboratories 
Albuquerque, New Mexico 87185-0972

Paul G. Weber, Steven C. Bender, Barham W. Smith, William B. Clodius, and
Christoph C. Borel
Los Alamos National Laboratory
Los Alamos, NM 87545

5. Oral presentation

6. Abstract.  MTI is a comprehensive research and development project that
includes up-front modeling and analysis, system design, fabrication,
assembly and testing, on-orbit operations, and experimentation and data
analysis.  The satellite is designed to collect radiometrically calibrated,
medium resolution imagery in 15 spectral bands ranging from 0.45 to 10.70
micrometers.  The payload portion of the satellite includes the imaging
system components, associated electronics boxes, and payload support
structure. The imaging system is comprised of a three-mirror anastigmatic
off-axis telescope, a single cryogenically cooled focal plane assembly, a
mechanical cooler, and an onboard calibration system. Payload electronic
subsystems include image digitizers, real-time image compressors, a solid
state recorder, calibration source drivers, and cooler temperature and
vibration controllers.  The payload support structure mechanically
integrates all payload components and provides a simple four point interface
to the spacecraft bus. All payload components have been fabricated and
tested, and integrated.

7. KEY WORDS: Infrared Imaging, Focal plane array, Cryogenic cooler, Image
compression, Radiometric calibration

8. R. Rex Kay received B.S.E.E. and M.S.E.E. degrees from the University of
New Mexico in 1982 and 1983. He has since been with Sandia National
Laboratories in Albuquerque NM, working on a variety of space-based visible
and infrared remote sensing systems.