Most of the scientific instruments were developed by the Italian National Research Council (CNR) while the Wide Field Cameras were developed by the Netherlands Institute for Space Research (SRON) and the LECS was developed by the astrophysics division of the European Space Agency's ESTEC facility.
Sebagian besar instrumen ilmiah dikembangkan oleh Italia National Research Council (CNR) sedangkan Kamera Wide Field dikembangkan oleh Belanda Institute for Space Research (SRON) dan LECS dikembangkan oleh divisi astrofisika fasilitas ESTEC Badan Antariksa Eropa.