... GPI Data Pipeline 1.0 documentation . GPI IFS Data Handbook . ... GPI Data Formats . Multi-Extension FITS format . ... Data quality flags extension ?DQ? ... This extension will contain a 8-bit integer flag for each pixel in the main image array. ... Bit 5 may be written by the data pipeline, which can also modify bit 0. bit 0: bad pixel, do not use if set. ... bit 5: [work in progress] flagged as bad pixel by data pipeline using time-dependent bad pixel map from calibration database. ...