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.
On-the-Fly Reprocessing (OTFR) of HST Data
Through OTFR, Hubble archive users can obtain data that are processed with
the latest calibration files, software, and data parameters. The OTFR system
reconstructs the data files with updated headers and
calibrates data when processing a user's request for the data from the archive.
WFC3, COS and ACS data can now be retrieved with OTFR system. STIS data taken
prior to August 2004, NICMOS data taken prior to June 2009, and WFPC2 data are no longer provided by OTFR.
The raw data returned to users through OTFR is reconstructed
from telemetry files to include updates to
The following links provide information for users: