(Not so) Quickstart guide

If you are eligible and interested in joining the Euclid Consortium (EC), you may find it useful to gain access to any and all of the below resources. For help with any of the EC portals, see the bottom of this page.

Table of contents

  1. Tracking Portal
  2. ESA Cosmos
  3. Redmine
  4. Slack
  5. Publications Portal
  6. Project Portal
  7. GitLab
  8. MDB & EAS/SAS
  9. Single Point of Entry
  10. Help
  11. Livelink
  12. SGS Documentation
  13. What are people doing?
  14. Other Pages and Portals
  15. External

Euclid Tracking Portal i.e. Becoming a Member of the EC

The Tracking Portal is the main and most current list of EC members. In order to be added to the list and gain access, you must:

  1. fill in this form, and
  2. email your country representative (see list on this page). Note that if you are looking to work in the Science Ground Segment (SGS), you should cc in your email to the country rep the SGS Project Manager (Andrea Zacchei – ask your nearest EC member for his email),
  3. keep an eye out for an email asking you to provide a letter and CV to support your application for EC membership.

The Tracking Page will then ask you every 6 months to log your work on Euclid in order to assign you a membership status (Contributing Member, Long-term Contributor, Builder, Founder), which entitles you to signing different EC publications on the Euclid Consortium Editorial Board (ECEB) portal (see the section Publications Portal below). If you fail to submit anything there for 2 years, you will be marked as “Inactive” and you will lose access to EC resources such as pages and portals.

If you are already on ESA’s list of EC members (see below), click on ‘Forget password?‘ to gain access to the Tracking Page.

This page is managed by the Euclid Consortium Information and Communication Management (ECICOM) group and by the EC Lead Support Office in France.

ESA Cosmos and the Cosmos Wiki

ESA Cosmos uses ESA’s list of EC members (we are currently trying to unify this list with the above list from the Tracking Page, which is a manual process). This is the page that provides several other portals with login credentials, so it is important to gain access here too. A ticket will be submitted on your behalf (at the Euclid Cosmos Helpdesk) when your Euclid Consortium membership is approved, so in principle you need not do anything to gain access.

Further possibly useful information is provided in the Redmine wiki page dedicated to the ESA Cosmos portal.

SGS developers should also see the Start Guide issued by the SGS.

This resource is managed by the ECICOM and ESA.

Euclid Redmine

The Euclid Redmine is used heavily by many groups in the EC for project management and for wikis.

As a new member you will automatically gain access as soon as you get added to the Projects Portal (see below), and the ESA Cosmos (see above). You may lose access if you become “Inactive” in the Tracking Portal.

This resource is managed by the ECICOM and by the Euclid Science Data Center (SDC) UK in Scotland.

Euclid Slack

The Euclid Slack is where many quick discussions happen, and where we can find out fast updates about the project. You will receive an invitation to join the EC Slack soon after your addition to the Tracking Portal (see above) database. Please ensure that you have read and agree to the Slack Guidelines and memorised the Slack Rules and Tips.

Note that there is only one official Euclid Slack and if you manage or come across any workspaces dedicated to Euclid, please let the ECICOM know so that we can assist them in migration (most workspaces have migrated in Summer 2023).

The Euclid Slack Workspace is currently managed by the ECICOM and owned by Germany.

Publications Portal

The Publications Portal keeps track of official Euclid publications, manages the internal review process, and allows members to sign papers they didn’t directly work on in the case they have earned their right to do so by significantly contributing to the project.

You can access it with your ESA Cosmos login, just like the Projects Portal.

Whenever a new publication is submitted you will receive an email, once you are listed as a member on the Tracking Page.

This page is managed by the ECICOM and in Germany, by the ECEB.

Projects Portal

This is a portal built to manage Euclid projects (not the Projects Page on the Redmine!). It contains a list of the major entities in the EC (like the SWGs and OUs) as managed groups. The smaller work packages (WPs) are listed as projects that can be managed by their leads once approved. Similarly Euclid Key and Standard Projects can be managed the same way. This is also the official EC mailing list server, where groups and projects automatically come with their own email exploders.

The Projects Portal uses the ESA CAS login. To gain access for the first time, you should follow the instructions in the Project Portal manual.

This page is managed by the ECICOM and in the UK and Germany by the ECEB.


This is where the code development happens. It is the internal, Euclid Consortium GitLab (similar to GitHub, but not public).
If you have access to the Cosmos Wiki above, you should be able to use those credentials to log in on the “Esac-LDAP” tab.

    This resource is managed by the ECICOM and in Scotland by SDC UK.

    Mission Database and Euclid Archive System

    The MDB and EAS/SAS are ESA-managed portals that host all the mission parameters and its data (respectively). If you have access to ESA Cosmos, you automatically gain access to these portals.

    Public-facing, googlable EC page

    This is a WordPress site you are on. (Note that what used to be the Internal part is now available in the ECL Wiki.)

    This page is managed in France by the EC Education and Public Outreach group (ECEPO), the ECICOM, and the EC Lead Support Office in France.


    If you encounter any issues, please try (in this order):

    1. ask your colleagues,
    2. ask our portals helpdesk on Slack in #help-portals, tagging the correct support team (typing @support on the EC Slack will display a list),
    3. submit a Redmine issue in the appropriate Sub-project, or
    4. email our whole portal support team at help@euclid-ec.org (don’t forget to mention the portal and issue).

    These are the ESA-hosted Euclid pages. Livelink in particular has historically been a document management system that has been used to archive some of the official Euclid documentation. Each member has access to all EC-specific parts of it, but some documentation that is confidential cannot be found here (that lives on an ESA part of Livelink or on the Eclipse, where the access is managed strictly). To find the documents

    • follow the above link,
    • sign in (Livelink is ESA-hosted so uses the same credentials as the Cosmos Wiki),
    • go to Tools -> Livelink, and
    • sign in again (top-right).

    The ECICOM does not recommend using this as a documentation server and encourages the EC to use the Redmine (see above) instead. The Livelink is managed by ESA.

    SGS Documentation

    To get an overview of all the Science Ground Segment (SGS) documents, you may rather take a look at the list on Cosmos (login required). Don’t be discouraged by error messages when following links – just log in and try to follow the link again. Here is a diagram of how these documents are connected and the types of documentation in the SGS. If you intend to prepare SGS documentation, see the guidelines on the Cosmos Wiki.
    There is a lot more to Euclid SGS documentation than belongs into a QuickStart Guide. For help on this topic, please contact Oriana Mansutti.

    Actually finding out what people are doing

    Having access to all these resources doesn’t guarantee that you will find what you are looking for. Once you have access to most of these (or while you are waiting for it) look at this list of group leads. The best would be if you select one group you’d like to join, contact its leads (see list) and ask them:
    where they keep their work (for example, they may document their WPs on the Redmine, so they should make sure you have access to it), and
    how do they communicate (when the main telecon is, how to sign up for mailing lists, is there a Slack/Discord workspace that you can join…).
    When you have access to the group’s main space, you can find what specific WPs there are and join what you are interested in, again mostly by contacting their leads and asking similar questions as above.
    For this you will probably be using some combination of our internal tools above and the following, widely available tools for virtual work: Google Docs (Slides, etc), Overleaf, Dropbox, Discord, Zoom, Webex, Skype, Google Hangouts…

    Other pages and portals

    The above are the main portals, but you may find it useful to access some of the following sites sometimes too:


    If you like social media, you may enjoy the following official accounts

    Twitter / X: @EC_Euclid, @Euclid_FR, @EuclidItalia, @Euclid_UK
    Instagram: @euclidconsortium, @franceforeuclid, @Euclid_italia
    YouTube: @EC_Euclid, @Euclid-France, @EuclidItalia
    Mastodon: @EC_Euclid
    Facebook: @EuclidConsortium, @missioneuclidfrance, @EuclidItalia

    Relevant tags: #DarkEnergy #EuclidMission #DarkMatter #DarkUniverse #ESAEuclid.

    In addition, you may enjoy the following: @Euclid_NISP, @ESA_Euclid, @EuclidMission.
    There are several googleable general pages about Euclid: Euclid at ESA – 1, Euclid at ESA – 2, Euclid at ESA – 3, Euclid France, Euclid UK, Euclid at IRAP, Euclid at CNES, Euclid at JPL – 1, Euclid at JPL – 2, Euclid at NASA, Euclid at IPAC, Euclid at LAM,…

    If there are any pages that are not listed here or if you think the Guide may need an update, please submit a Redmine issue to the ECICOM or write to us on Slack.

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