In-flight absolute calibration of the CBERS-2 CCD sensor data

Flávio J. Ponzoni, Jurandir Zullo Junior, Rubens A.C. Lamparelli
2008 Anais da Academia Brasileira de Ciências  
Since the first images of the sensors on board of CBERS-2 (China-Brazil Earth Resources Satellite) satellite were made available by the National Institute for Space Research (INPE), users have asked information about the conversion of image digital numbers to physical data (radiance or reflectance). This paper describes the main steps that were carried out to calculate the in-flight absolute calibration coefficients for CBERS-2 CCD level 2 (radiometric and geometric correction) images
more » ... n) images considering the reflectance-based method. Remarks about the preliminary evaluation of these coefficients application are also presented.
doi:10.1590/s0001-37652008000200015 pmid:18506263 fatcat:2de63q7mivcrjjajebs5c5ttby