Auchere, Frederic ; Mampaey, Benjamin ; Verbeeck, Francis ; Stegen, Koen ; Kraaikamp, Emil ; Gissot, Samuel ; Berghmans, David

Dataset released under the open data policy

Abstract: The Extreme Ultraviolet Imager (EUI) is part of the remote sensing instrument package of the ESA/NASA Solar Orbiter mission. The EUI consists of three telescopes, the Full Sun Imager (FSI) and two High Resolution Imagers (HRILYA, HRIEUV), which are optimised to image in Lyman-α and EUV (17.4 nm, 30.4 nm). The 3 telescopes together provide a coverage from chromosphere up to corona with both high resolution and with a wide field of view. EUI scientific data consists of calibrated and raw data images acquired by the three EUI telescopes. Following the orbit profile of Solar Orbiter, the data coverage, imaging cadence and effective spatial resolution of the EUI data are very variable. "EUI data release 4.0 2021-12" contains the Solar Orbiter/EUI data from the Near Earth Commissioning Phase (NECP) and Cruise Phase. This implies that most data is the result of technical tests, for which the instrument configuration was often non-nominal. Most data is therefore a-priori not suitable for scientific analysis but is instead primarily intended as a reference for the further development of analysis and visualisation software.

Keyword(s): telescope ; multlayer telescope ; EUV ; UV ; CMOS-APS ; corona ; transition region ; 17.4 nm ; 30.4 nm ; Lyman alpha ; CME ; coronal mass ejection ; coronal structure
Note: Solar Orbiter is a space mission of international collaboration between ESA and NASA, operated by ESA.
DOI: 10.24414/s5da-7e78
Links: link
Funding: The EUI instrument was built by CSL, IAS, MPS, MSSL/UCL, PMOD/WRC, ROB, LCF/IO with funding from the Belgian Federal Science Policy Office (BELSPO/PRODEX PEA 4000112292); the Centre National d’Etudes Spatiales (CNES); the UK Space Agency (UKSA); the Bundesministerium für Wirtschaft und Energie (BMWi) through the Deutsches Zentrum für Luft- und Raumfahrt (DLR); and the Swiss Space Office (SSO).