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Proceedings Paper

On-orbit test results from the EO-1 Advanced Land Imager
Author(s): Jenifer B. Evans; Constantine J. Digenis; Margaret D. Gibbs; David R. Hearn; Donald E. Lencioni; Jeffrey A. Mendenhall; Ralph D. Welsh
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Paper Abstract

The Advanced Land Imager (ALI) is the primary instrument flown on the first Earth Observing mission (EO-1), launched on November 21, 2000. It was developed under NASA's New Millennium Program (NMP). The NMP mission objective is to flight-validate advanced technologies that will enable dramatic improvements in performance, cost, mass, and schedule for future, Landsat-like, Earth Science Enterprise instruments. ALI contains a number of innovative features designed to achieve this objective. These include the basic instrument architecture which employs a push-broom data collection mode, a wide field of view optical design, compact multi-spectral detector arrays, non-cryogenic HgCdTe for the short wave infrared bands, silicon carbide optics, and a multi-level solar calibration technique. During the first ninety days on orbit, the instrument performance was evaluated by collecting several Earth scenes and comparing them to identical scenes obtained by Landsat7. In addition, various on-orbit calibration techniques were exercised. This paper will present an overview of the EO-1 mission activities during the first ninety days on-orbit, details of the ALI instrument performance and a comparison with the ground calibration measurements.

Paper Details

Date Published: 18 January 2002
PDF: 10 pages
Proc. SPIE 4483, Earth Observing Systems VI, (18 January 2002); doi: 10.1117/12.453442
Show Author Affiliations
Jenifer B. Evans, MIT Lincoln Lab. (United States)
Constantine J. Digenis, MIT Lincoln Lab. (United States)
Margaret D. Gibbs, MIT Lincoln Lab. (United States)
David R. Hearn, MIT Lincoln Lab. (United States)
Donald E. Lencioni, MIT Lincoln Lab. (United States)
Jeffrey A. Mendenhall, MIT Lincoln Lab. (United States)
Ralph D. Welsh, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 4483:
Earth Observing Systems VI
William L. Barnes, Editor(s)

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