Spectrophotometric calibration design for the ultra violet from 700 to 3 500 Å

Abstract

Spectrophotometric calibration methods for the ultraviolet, from 700 A to 3 500 A, have been developed at the Laboratoire d'Astronomie Spatiale in connection with the D 2 B French Astronomical Satellite, of the Centre National d'Etudes Spatiales project, for the calibration of the EAS, ELZ and ERC instruments. After reviewing the parameters to be mesured and the precision required, we describe the adopted methods and the equipment that has been constructed. A few results of measurements are presented to illustrate the performance obtained.