Journal
SPACE TELESCOPES AND INSTRUMENTATION 2022: OPTICAL, INFRARED, AND MILLIMETER WAVE
Volume 12180, Issue -, Pages -Publisher
SPIE-INT SOC OPTICAL ENGINEERING
DOI: 10.1117/12.2630338
Keywords
Euclid; Spectroscopy; Photometry; Infrared; Instrument; NISP
Funding
- Academy of Finland
- Agenzia Spaziale Italiana
- Belgian Science Policy
- Canadian Euclid Consortium
- Centre National d'Etudes Spatiales
- Deutsches Zentrum fur Luft und Raumfahrt
- Danish Space Research Institute
- Fundacao para a Ciencia e a Tecnologia
- Ministerio de Economia y Competitividad
- National Aeronautics and Space Administration
- National Astronomical Observatory of Japan
- Netherlandse Onderzoekschool Voor Astronomie
- Norwegian Space Agency
- Romanian Space Agency
- State Secretariat for Education
- Research and Innovation (SERI) at the Swiss Space Office (SSO)
- United Kingdom Space Agency
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This paper presents the final architecture and subsystems of the NISP instrument, along with the performance and ground calibration measurements conducted at operational cold temperature.
The NISP (Near Infrared Spectrometer and Photometer) is one of the two Euclid instruments (see ref [1]). It operates in the near-IR spectral region (950 -2020nm) as a photometer and spectrometer. The instrument is composed of: - a cold (135 K) optomechanical subsystem consisting of a Silicon carbide structure, an optical assembly, a filter wheel mechanism, a grism wheel mechanism, a calibration unit, and a thermal control system, - a detection system based on a mosaic of 16 H2RG with their front-end readout electronic, and - a warm electronic system (290 K) composed of a data processing / detector control unit and of an instrument control unit that interfaces with the spacecraft via a 1553 bus for command and control and via Spacewire links for science data. This paper presents: - the final architecture of the flight model instrument and subsystems, and - the performance and the ground calibration measurement done at NISP level and at Euclid Payload Module level at operational cold temperature.
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