|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
ACS Reference File Tables
Reference files used by the ACS calibration pipeline (CALACS and PyDrizzle/MultiDrizzle) are updated on a regular basis. Current reference files files can be retrieved from the HST archive, or downloaded directly from the jref directory. See the logsheets for a detailed history of all ACS reference file deliveries and installations. The pixels affected by these reference files are generally identified by data quality flags in the [DQ] extension of calibrated FITS data.
(old ACS reference files page)
Sensitivity and Throughput Tables
Throughput tables used to populate photometric keywords in image headers. Also used by Synphot & the
exposure time calculators.
ACS Bias Reference Images
Superbias images for subtracting bias structure.
ACS Cosmic Ray Rejection
Parameters for rejecting cosmic rays from CR-SPLIT images
ACS CCD Tables
Converts commanded properties to calibrated values for each CCD amplifier.
ACS Distortion Correction Tables
Parameters for geometric distortion correction.
SBC Linearity
Parameters for determining linearity in MAMA images.
ACS Residual Geometric Distortion Images
Correct residual geometric distortion
Data quality flags
Flags used to identify bad and corrected pixels in the data quality arrays of all ACS data.
ACS Bad Pixel Table
Flag "permanently" bad pixels in the data quality (DQ) arrays of ACS images
ACS MultiDrizzle Parameter Tables
Parameters for combining and cleaning associated datasets
ACS CCD Overscan
Describe CCD overscan regions used to measure bias level
ACS Flat list
Reference Images for flat field division
ACS HRC Coronagraphic Spot Tables
Provides the spot positions
ACS HRC Coronagraphic Spot Flat Files
Corrects by vignetting around the ACS/HRC coronographic occulting spots.
ACS Dark Reference Images
Reference images for dark current subtraction, including hot pixel correction and flagging.