STScI Calibration Data System

ACS Bad Pixel Table

These tables are used by the DQCORR step in CALACS to populate the data quality (DQ) arrays of ACS images with flags for known (quasi-permanent) bad pixels. See the flag definitions for more details. The correct row in the table is selected by DETECTOR, CCDCHIP, CCDAMP, CCDGAIN.

To retrieve a file from the archive, click in the file name. For details on how to correctly set up the Archive retrieval options for reference files, check our Help page.

To receive e-mail notifications of deliveries of new reference files, you can subscribe to instrument specific mailing lists. More.

See the reference file delivery logsheet for more information. These files can also be downloaded directly from the jref directory. If you choose to access the files via this ftp server, keep in mind that there is a known bug in trying to access files via ftp server using Safari. The recommended browser is Firefox.

File Detector Use After Pedigree Delivery # Delivery Date OTFR Start Use Date Comments
t3n1116nj_bpx.fits WFC Jan 01 2008 00:00:00 UT INFLIGHT 12009 Mar 23 2009 11:22:03 GMT Mar 23 2009 14:09:49 GMT New modes to cover all Chip, Amp, and Gain combinations for SM4 Ori
q860440tj_bpx.fits WFC Oct 08 2004 09:05:46 UT INFLIGHT 11644 Aug 06 2006 04:44:34 GMT Aug 06 2006 05:32:58 GMT New modes to cover all Chip, Amp, and Gain combinations
n9p09145j_bpx.fits WFC Mar 02 2002 00:00:00 UT INFLIGHT 11257 Sep 25 2003 13:55:30 GMT Sep 25 2003 00:00:00 GMT ACS/WFC bad pixel table
u451251ej_bpx.fits SBC Jan 01 1993 00:00:00 UT INFLIGHT 12153 Apr 05 2010 12:54:34 GMT Apr 05 2010 13:50:39 GMT Bad pixel table for SBC--------------------------------------------
ob82155qj_bpx.fits HRC Oct 08 2004 09:05:46 UT INFLIGHT 11511 Nov 08 2004 22:00:06 GMT Nov 08 2004 23:24:31 GMT ACS reference file
m8r09169j_bpx.fits HRC Mar 01 2002 00:00:00 UT INFLIGHT 11037 Aug 27 2002 13:22:24 GMT Aug 27 2002 14:18:00 GMT ACS/HRC bad pixel table