Register an SDSS-IV Trac account

Registration Information:

  • Please fill out all the fields, even if they are marked 'Optional'.
  • Choose a username that contains only alphanumeric characters (please do not use spaces and '@' symbols).
  • Specify your academic or institutional email address. Please do not use gmail, etc.

Account Approval:

  • Send email to stating your name, username and institutional affiliation and asserting that you are covered by a suitable SDSS-IV data rights agreement.
  • Please CC this email to the Collaboration Council representative or Lead Scientist at your institution.
  • If you are an approved external collaborator, please CC the SDSS-IV Spokesperson ( and the lead sponsor of your external collaborator proposal.
  • If your account has not been approved within 2 days, please send an inquiry to

Communications and Collaboration:

  • Follow the Mailing Lists link under the "Communications and Collaboration" heading to sign up for one or more mailing lists.
  • Please sign up for the sdss4-general mailing list. The traffic on this list is light, and we need a list that can be used to contact everyone in the collaboration.
  • Add your name, phone number, and email address to the wiki page that contains the collaboration contact information, "People" under "Communications and Collaboration." This will allow other collaboration members to reach you as needed.
  • Other useful links under "Communications and Collaboration" are the times of the weekly telecons and the "Help Wanted" list for SDSS-IV tasks seeking interested volunteers.

The email address is required for Trac to send you a verification token.

Entering your email address will also enable you to reset your password if you ever forget it.