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--- observation:data [2026/09/23 14:47] – etienne
+++ observation:data [2026/09/23 14:54] (current) – etienne
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-<html><font color="#ff0000" size="2.5"> Page in construction ; Last Update February 2026</font></html>
+<html><font color="#ff0000" size="2.5"> Page in construction ; Last Update September 2026</font></html>
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 Currently, THEMIS provides 4 types of level 1 data products :
   * [[# Full-Sun guider images]]
-  * Broadband images (BBI)
+  * [[# Broadband images (BBI)]]
-  * Slit-jaw images
+  * [[# Slit-jaw context images | Slit-jaw images]]
-  * MTR2 spectral images (with or without polarimetry)
+  * [[# Spectral images | MTR2 spectral images (with or without polarimetry)]]
 Theses images are the direct outputs of the different cameras that equip THEMIS at different point of the optical path.  Their production is detailed on the **[[technical:description|THEMIS technical information page]]**, with informations about the possible options available to the users.
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 For non polarized observations, for each channel, at each time, the dataset consists 2D image, with a variable wavelength across the field of view in one direction, and the spatial direction along the slit in the other directions. Each channel is centered on a different wavelength across the line profile.
-Datas examples :
+A few sample spectral datasets from the MTR2 spectrograph, along with some basic data manipulation tools will soon be available on the [[observation:data:MTRsampledata | dedicated webpage]].
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-==== DATA Access ====
+==== DATA access ====
+THEMIS data are the property of property of CNRS-THEMIS under a [[https://creativecommons.org/licenses/by/4.0/" | Creative Commons CC-BY 4.0 license]]. \\
+The data are freely available, however there is unfortunately no extensive and complete catalogue nor webservers to directly access the data. Some historical heritage datasets can be retrieved form some archive  \\
+** Access to specific datasets can be done by contacting the THEMIS team: [[themis.team@themis.iac.es|themis.team@themis.iac.es]].**
 === THEMIS heritage data ===
-The full archive until 2014 is stored  on DLT tapes at the telescope. We do have a functionnal tape reader but no usable software to run it.\\
+The full archive until 2014 is stored  on DLT tapes at the telescope. We do have a functional tape reader but no usable software to run it.\\
 We maintain an **incomplete** archive of years 2009, 2010, 2012, 2013, 2014 on HDDs. Listing of what's available:
   * [[http://www.themis.iac.es/wdata/WOldData/Y09-10.lst | 2009, 2010]]