The primary instrument on the first Earth Observing satellite (EO-1) under the New Millennium Program (NMP) is the Advanced Land Imager (ALI) multispectral instrument. Overall direction of the EO-1 mission and acquisition of the spacecraft is being carried out by the Goddard Space Flight Center (GSFC) of NASA. MIT Lincoln Laboratory developed the Advanced Land Imager with NMP instrument team members Raytheon Systems Santa Barbara Remote Sensing (focal plane) and SSG Inc. (optical system). This instrument includes an optical system, a focal plane system, a calibration system, and the structural, thermal, and electrical components required to form an integrated unit. Lincoln Laboratory was responsible for the design, fabrication, test and development of the instrument, the software and databases for calibration, and is responsible for on-orbit performance assessment. This document provides a detailed overview of the instrument, preflight calibration techniques and results, and pre-flight environmental testing. In-flight calibration techniques and results are also reviewed and lessons learned related to the transfer of ALI technology to the Landsat Data Continuity Mission (LDCM) are provided.


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