The control unit of the near infrared spectrograph of the EUCLID space mission: preliminary design

Abstract

The Near Infrared Spectrograph and Photometer (NISP) is one of the instruments on board the ESA EUCLID mission. The Universidad Politécnica de Cartagena and Instituto de Astrofísica de Canarias are responsible of the Instrument Control Unit of the NISP (NI-ICU) in the Euclid Consortium. The NI-ICU main functions are: communication with the S/C and the Data Processing Unit, control of the Filter and Grism Wheels, control of the Calibration Unit and thermal control of the instrument. This paper presents the NI-ICU status of definition and design at the end of the preliminary design phase.

Design of the on-board application software for the instrument control unit of Euclid-NISP

“…4 In Figure 1 it is shown a schematic view of the different components of the Unit. The link between the ICU and the Command and Data Management Unit (CDMU) is obtained with the use of MIL-STD-1553 connection; 5 the same kind of bus is used for the communication between the ICU and the DPU/DCU, which is basically the only other intelligent unit on NISP.…”