000005857 001__ 5857
000005857 005__ 20221021155013.0
000005857 037__ $$aPOSTER-2022-0038
000005857 100__ $$aKraaikamp, E.
000005857 245__ $$aThe highest resolution full disc EUV corona image ever
000005857 260__ $$c2022
000005857 269__ $$c2022-09-12
000005857 500__ $$aPoster P85 of the conference abstract book
000005857 520__ $$aOn March 7 2022 with Solar Orbiter at a distance of 0.50 AU to the Sun and crossing between the Sun and Earth line, the Extreme Ultraviolet Imager (EUI) with its High Resolution Imager in EUV (HRI-EUV, 17.4 nm) created a 25-panel mosaic of raw exposures covering the entire disc of the Sun. Using this dataset we discuss the biggest challenges of calibrating EUI data in general and HRI-EUV data in specific: from dark and flat calibration, artefacts on the detector in the shape of gummy bears, to the difficulties in combining low and high-gain images into high dynamic range combined gain exposures. Finally, we show how the calibrated images were combined into the highest resolution full-disc solar corona image in Extreme ultraviolet light ever. This combined mosaic image was produced in first instance for outreach purposes. However, some science use and multi-instrument cross-calibration can also be anticipated and we will discuss the limitations and opportunities for this.
000005857 594__ $$aSTCE
000005857 6531_ $$aSun
000005857 6531_ $$acorona
000005857 6531_ $$aEUI
000005857 700__ $$aBerghmans, D.
000005857 700__ $$aVerbeeck, C.
000005857 700__ $$aStegen, K.
000005857 700__ $$aGissot, S.
000005857 700__ $$aAuchère, F.
000005857 700__ $$aSchühle, U.
000005857 700__ $$aEUI Team, X.
000005857 773__ $$t8th Solar Orbiter Workhop, Belfast (UK)
000005857 8560_ $$fdavid.berghmans@observatoire.be
000005857 85642 $$ahttps://www.sidc.be/EUI/data/presentation/20220912-15-SolOWorkshopBelfast-HRI-EUV_Mosaic_EKraaikamp.pdf
000005857 85642 $$ahttps://www.sidc.be/EUI/pictures/20220307_hrieuv_mosaic/
000005857 980__ $$aCPOSTER