STScI Calibration Data System

Coronagraphic Spot Flats

There is an extended region of vignetting around the ACS/HRC coronographic occulting spots caused by their placement in the aberrated HST beam. These flats (cfl) are corrected for vignetting by the occulting spots.

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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.

Coronographic Flats

File Detector Filter 1 Filter 2 Use After Pedigree Delivery # Delivery Date OTFR Start Use Date Comments
oai1632bj_cfl.fits HRC CLEAR1S F814W Mar 01 2002 00:00:00 UT INFLIGHT 11503 Oct 18 2004 16:34:30 GMT Oct 18 2004 20:49:47 GMT ACS reference file
oai1632aj_cfl.fits HRC F606W CLEAR2S Mar 01 2002 00:00:00 UT INFLIGHT 11503 Oct 18 2004 16:34:30 GMT Oct 18 2004 20:49:47 GMT ACS reference file
oai16329j_cfl.fits HRC F475W CLEAR2S Mar 01 2002 00:00:00 UT INFLIGHT 11503 Oct 18 2004 16:34:30 GMT Oct 18 2004 20:49:47 GMT ACS reference file
oai16328j_cfl.fits HRC CLEAR1S F435W Mar 01 2002 00:00:00 UT INFLIGHT 11503 Oct 18 2004 16:34:30 GMT Oct 18 2004 20:49:47 GMT ACS reference file
oai16327j_cfl.fits HRC CLEAR1S F330W Mar 01 2002 00:00:00 UT INFLIGHT 11503 Oct 18 2004 16:34:30 GMT Oct 18 2004 20:49:47 GMT ACS reference file