On April 1st, 2009, FORS1 has been decommissioned after 10 years of operations.

Science and Calibration data for Service Mode runs from FORS1 have been processed by Data Flow Operations Garching and pass Quality Control (QC).
Science data for Visitor Mode runs were presently not processed by Data Flow Operations.

More information on the FORS1 instrument, especially all technical aspects, is found on the FORS1 web pages. The current version of FORS1 User's Manual is available here .

Raw data (science and calibrations) can be retrieved using the ESO VLT archive form, while Paranal ambient conditions can be found here.

Information about Quality Control for FORS2 is available here .