ALOS Data Users Handbook

Section 7 Overview of Processing AlgorithmsTable 7.2-4 Coordinate System to be Used in the PRISM Geometric ModelNo Name Abbr. Definition Remarks1 STT Reference Φ STTCoordinateX: roll-axis on the orbitY: pitch-axis on the orbitZ: yaw-axis on the orbitOrigin: STT reference mirror2 Satellite Coordinate Φ B X, Y, Z: parallel to each axis of the STTreference coordinate systemOrigin: satellite center of mass3 Satellite FixedCoordinate4 PRISM ForwardView RadiometerFixed Coordinate5 PRISM Nadir ViewRadiometer FixedCoordinate6 PRISM BackwardView RadiometerFixed Coordinate7 PRISM ForwardView RadiometerCoordinate8 PRISM Nadir ViewRadiometerCoordinate9 PRISM BackwardView RadiometerCoordinateΦ SΦ PRI_FSΦ PRI_NSΦ PRI_BSΦ PRI_FΦ PRI_NΦ PRI_BX: mechanical roll-axisY: mechanical pitch-axisZ: mechanical yaw-axisOrigin: intersection point of thecenterline of the separation part andseparation plane.X: vertical to the mounted surfaceY: Same as Y in the forward viewingradiometer coordinate systemZ: X x YOrigin: alignment mirrorX: vertical to the mounted surfaceY: Same as Y in the nadir viewingradiometer coordinate systemZ: X x YOrigin: alignment mirrorX: vertical to the mounted surfaceY: Same as Y in the backward viewingradiometer coordinate systemOrigin: alignment mirrorX: Y x ZY: CCD layout reference directionZ: FOV central direction of forwardoptical system (optical axis direction)Origin: forward reference mirrorX: Y x ZY: CCD layout reference directionZ: FOV central direction of the nadiroptical systemOrigin: nadir reference mirrorX: Y x ZY: CCD layout reference directionZ: FOV central direction of the nadiroptical system (optical axis direction)Origin: backward reference mirrorAlignment mirrorreferenceAlignment mirrorreferenceAlignment mirrorreferenceNominallyconsistent with theradiometer fixedcoordinate system7-20