2.7.1 https://spdx.org/licenses/ SPDX https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions spase://NASA/NumericalData/IRIS/Level_2/PT1S NASA NumericalData IRIS Level 2 Calibrated Images and Spectra Data https://doi.org/10.48322/k079-z133 2025-12-04T13:29:37Z 2020-07-07T21:14:39Z Only known prior ReleaseDate of the metadata 2025-05-14T15:38:11Z Added ObservedRegion. JMW 2025-11-14T16:01:53Z Added PublicationInfo. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB 2025-12-04T13:29:37Z Added MetadataRightsList. Updated to 2.7.1. ZCB 2026-04-09T00:08:46 Added AccessInformation (SDAC) This data set contains calibrated level-2 images and spectra data from the Interface Region Imaging Spectrograph (IRIS). UV images from IRIS telescope record observations of features as small as 240 km (150 miles) on the sun every five to ten seconds at specific temperatures, ranging from 5,000 K to 120,000 K (and up to 10 million K during solar flares). This range allows observations of material moving between the surface of the sun, called the photosphere, and in the lowermost layers of the atmosphere, called the chromosphere and transition region. Spectra are obtained every two to thirty seconds along a slit (1/3 arcsec wide) of solar material at temperatures from 5,000 K to 10 million K, providing information on exactly how much light is visible from any specific wavelength. This corresponds to how much material is present at specific velociites, temperatures and densities. The level-2 data is corrected for dark current, flat-field, and geometric deformation, scaled to the same plate-scale, and packaged into timeseries of slitjaw images and spectral raster scans. IRIS is a NASA small explorer mission developed and operated by LMSAL with mission operations executed at NASA Ames Research center and major contributions to downlink communications by ESA and NSC (Norway). Pontieu, Bart, De 2025-11-14T16:01:53Z Lockheed Martin United States; Hinode Science Data Centre Europe spase://SMWG/Person/Bart.De.Pontieu PrincipalInvestigator IRIS mission, operations, data, analysis and documents https://iris.lmsal.com/index.html at the IRIS LMSAL site IRIS Data User's Guide https://iris.lmsal.com/itn26/itn26.pdf IRIS Data User's Guide Graphical overview for recent IRIS observations https://iris.lmsal.com/iristoday/ view IRIS data today Planned observations for IRIS https://www.lmsal.com/hek/hcr?cmd=view-planned-events&instrument=iris Planned observations for IRIS Recent IRIS observations https://www.lmsal.com/hek/hcr?cmd=view-recent-events&instrument=iris Recent IRIS observations spase://VSPO/NumericalData/IRIS/IRIS/PT1S spase://NASA/NumericalData/IRIS/IRIS/PT1S spase://SMWG/Repository/LMSAL Online Open Data Search with Six Widgets https://iris.lmsal.com/search/ FITS spase://SMWG/Repository/ESA/HSDC_Europe Online Open Data Search Form at ESA Hinode Science Data Centre http://sdc.uio.no/search/form FITS spase://SMWG/Repository/SDAC Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products The IRIS Level 2 Data Archive at SDAC https://umbra.nascom.nasa.gov/iris/iris_data/level2_compressed/ FITS GZIP spase://SMWG/Instrument/IRIS/IRIS ImageIntensity Spectrum 2013-07-23T00:00:01.000Z -P30D PT1S Sun.Chromosphere Sun.TransitionRegion