Spectral and Radiometric Calibration of the Advanced Land Imager

Abstract

The Advanced Land Imager (ALI) is currently flying aboard the Earth Observing 1 (EO-1) mission under NASA’s New Millennium Program. Initial ground calibration and on-orbit calibration procedures for the ALI were established to ensure accurate spectral and radiometric measurements. Periodic recertification is performed with solar, lunar, and onboard lamp sources. As a result of the on-orbit data stability and drift, several mechanical steps, including temperature cycling, have been implemented