As of April 13, the archive is now using the STScI Single Sign-On (SSO) identity manager.
To check on your account click
For more information about how accounts were transitioned click here.
MAST Web Tutorial
The MAST Web Tutorial has become out-of-date and is temporarily
offline until updates can be completed.
Questions about the MAST web site can be sent to the help desk
via e-mail at firstname.lastname@example.org or call 410-338-4443.