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All BIAS files are processed by CALACS to use only read noise for ERR… #288
All BIAS files are now processed by CALACS to use only read noise (vs Poisson) for the computation of the ERR array as the date discriminant (pre- and post-SM4) has been removed. Also, when using ACSREJ standalone, the user now must use the "readnoise_only" flag (formerly "newbias" flag) to obtain the same results as CALACS for BIAS images. NOTE: Modifying the flag to ACSREJ is expeditious rather than user-friendly. The "newbias" flag has been removed (not just deprecated) as this functionality is used mostly internally for calibration purposes. If the "newbias" flag is invoked, ACSREJ will issue an message regarding the change and exit with an error.
When updating ACSREJ for standalone use, improved the syntax or usage message which addresses a portion of #278 for ACSREJ only.