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NOTE: Most of the High Level Science Products are unavailable while unscheduled maintenance is being performed. They will be incrementally restored over the course of this week. We apologize for any inconvenience.

MAST Contacts for Help

The Archive Hotseat is available Monday through Friday, 9:00 AM to 5:00 PM Eastern to answer questions about the Archive.

For questions about HST data analysis, send E-Mail to:

For assistance with the archive, or help with other missions (e.g., Kepler, FUSE, IUE, Copernicus EUVE, etc.) send E-mail to:

To talk with a Hotseat representative you may also call 410-338-4547.

Submissions for ingest into the JWST SID archive need to be arranged in advance. Submissions may be sent via sftp to a specified location or on external media addressed to the SID archive. The team contact should coordinate with the archive contact, Herb Kennedy, by e-mail , or telephone 410-338-4443, to obtain a location for the sftp transfer or arrange for delivery of the external media.

Operations and Engineering Division (OED)
Space Telescope Science Institute,
3700 San Martin Drive
Baltimore MD 21218