2.7.1 spase://SMWG/NumericalData/Hinode/EIS/Level1/FITS Hinode EIS Level1 FITS 2026-05-25T00:08:46 Hinode EIS Level1 FITS data are calibrated Extreme Ultraviolet (EUV) spectroscopic observations obtained by the EUV Imaging Spectrometer (EIS) instrument onboard the Hinode solar observatory. The Level1 products are generated from Level0 FITS data through standard calibration processing, including corrections for detector bias, dark current, cosmic-ray spikes, warm pixels, and instrumental effects. The calibrated data preserve the original spatial, spectral, and temporal observation structure and are provided in FITS format with multiple Header Data Units (HDUs) containing spectroscopic image data, wavelength-window information, and associated metadata. EIS observes the solar transition region and corona in two EUV wavelength bands near 170–210 Å and 250–290 Å using slit and slot spectroscopic observations. Observation cadence, spatial coverage, exposure time, and raster configuration vary depending on the observing program. Hinode EIS Data Analysis Team: Naval Research Laboratory (USA); NASA Goddard Space Flight Center (USA); Mullard Space Science Laboratory, University College London (UK); Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan) 2018-10-01T00:00:00 Naval Research Laboratory spase://SMWG/Person/Sarah.Matthews PrincipalInvestigator spase://SMWG/Person/J.Leonard.Culhane FormerPI spase://SMWG/Person/Louise.Harra FormerPI spase://SMWG/Person/Harry.P.Warren InstrumentScientist EIS Instrument Scientist (USA) spase://SMWG/Person/George.A.Doschek InstrumentScientist Former EIS Instrument Scientist (USA) spase://SMWG/Person/Hirohisa.Hara InstrumentScientist EIS Instrument Scientist (Japan) spase://SMWG/Person/Tetsuya.Watanabe InstrumentScientist Former EIS Instrument Scientist (Japan) spase://SMWG/Person/Peter.R.Young Scientist Principal developer of the EIS Level1 calibration algorithms and calibration software. Calibrating EIS data: the EIS PREP routine https://solarb.mssl.ucl.ac.uk/SolarB/eis_docs/eis_notes/01_EIS_PREP/eis_swnote_01.pdf spase://SMWG/Repository/NRL Online Open Naval Research Laboratory https://eis.nrl.navy.mil/level1/fits/ FITS None Calibrated spase://SMWG/Instrument/Hinode/EIS Spectrum ImageIntensity 2006-10-20T10:21:31Z -P10D ExtremeUltraviolet Sun Sun.TransitionRegion Sun.Corona Cartesian HPC spase://SMWG/NumericalData/Hinode/EIS/Level0/FITS