The archives are available here


August 22, 2023

The next MEDOC User Committee meeting will be held on September 5, 2023. To help us prepare for this meeting, please send your comments and suggestions about MEDOC services to medoc-contact /at/

July 28, 2023

The CST code documentation has been improved to include how to use the code on deconvoluted data, and the proof of the solar derotation formulas used in the code.

July 12, 2023

MEDOC has developed a new product for ESA's Space Weather Portal (please register to access the portal): synchronous synoptic maps of photospheric intensity and magnetic field.

May 2, 2023

The MEDOC HelioViewer server has been updated. Among the visible changes: it is now possible to use the web app from a touchscreen, including a phone or tablet, and the web app now includes flare predictions. New datasets have been added and are also available in the JHelioviewer application: Solar Orbiter/EUI, GOES-R/SUVI, COSMO/KCor (Mauna Loa), PROBA2/SWAP, and Hinode/XRT.

April 4, 2023

In case your system (e.g. a recent Linux distribution) does not let you install Python packages such as our Sitools2 API client, you have to:

  •     either use the `--break-system-packages` option of `pip install` (although we advise against this)
  •     or install the client within the virtual environment you will use for your analysis.

January 15, 2023

The OSU Paris-Saclay IDOC Regional Expertise Center, which hosts MEDOC, becomes the 3rd French data center, after CDS and IFREMER, to obtain the CoreTrustSeal label. This certification rewards our efforts over the last few years to meet 16 fundamental requirements necessary for the recognition of certified data centers.

November 3, 2022

A slight modification in the CST codes for the IDL parts of versions 1.0 and 1.1 (in the formulas Xc and Yc) has been made. See the note in the "Fortran, IDL files and documentations" section.

November 1st, 2022

Barbara Perri, who has been recently hired as Assistant Astronomer at CEA-AIM, will carry out part of her observation service for MEDOC. She will work initially on the archive of simulation datasets and participate in the development of products for space weather.

April 20, 2022

2D numerical radiative transfer codes (NLTE2D), developed at IRAP (Toulouse), have been published (with documentation and test cases input files) on the MEDOC page about Radiative transfer codes.

December 16, 2021

Wind-Predict simulations results of cosmic rays diffusion coefficients in the solar wind have been updated with files in Cartesian coordinates, for a better compatibility with all visualization software.

December 1st, 2021

The EIT synoptic maps data set, available through our web interface and EPN-TAP, has been published in the VESPA virtual observatory.

November 10, 2021

The MEDOC HelioViewer server has been updated. This update has added some functionalities on the web interface. The RSS flux, YouTube video upload, and an issue with data ingestion to the features and events database have been repaired. The data gaps coming from the GSFC server downtime should be filled, please contact us if you still find missing data.

April 22, 2021

The next MEDOC User's Committee meeting will be held on May the 6th, 2021. To help us prepare this meeting, please send your comments and suggestions about MEDOC services to

April 9, 2021

Thierry Roudier and Martine Chane-Yook  have given a talk about CST codes during the COFFIES Surface-Links Team meeting.

March 26, 2021

An annex version (V1.2), which is an application of CST codes on deconvolved HMI data, is available on CST webpage.

January 15, 2021

The SDO JSOC has made a correction to the observer longitude and latitude metadata, starting on 2020-12-03. Furthermore, the data-production and data-export pipelines will be updated again to make the FITS headers compliant with the standard. More information can be found on the JSOC website.

June 16, 2020

We have experienced some delays in retrieving SDO files in the last days, we have identified the issue and we are catching up now. Furthermore, the SDO server will be stopped on Thursday 18 June 2020 morning to put new hardware online.

April 23, 2020

A new version (V1.1) of CST codes is available on CST webpage.

March 16, 2020

Tools for radiative transfer are available on the page Radiative transfer codes : see the 1st link on that page.

March 14, 2020

The next MEDOC Users' Committee meeting will be held on May the 7th, 2020. To help us prepare this meeting, please send your comments and suggestions about MEDOC services to medoc-contact /at/

March 1st, 2020

The workshop dedicated to the training and use of the Coherent Structure Tracking (CST) software will take place on March 3-4, 2020 at IAS. Workshop presentations are available on CST webpage at "workshop" section.

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