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As of April 13, the archive is now using the STScI Single Sign-On (SSO) identity manager. To check on your account click here. For more information about how accounts were transitioned click here.

MAST Data Use Policy

Although there is no cost involved in retrieving data from MAST, researchers are requested to include an acknowledgment (as shown below) in any publications that make use of data obtained from MAST:

"Some/all of the data presented in this paper were obtained from the Multimission Archive at the Space Telescope Science Institute (MAST). STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. Support for MAST for non-HST data is provided by the NASA Office of Space Science via grant NAG5-7584 and by other grants and contracts."

Users wishing to use documents obtained from the MAST web site for other than personal use, should first contact the MAST staff at archive@stsci.edu regarding neccessary permissions and acknowledgments.

GSC Data Copyrights, Data Use Policy, Acknowledgments