ETC Version 1.2.2 Released
The JWST Exposure Time Calculator (ETC) version 1.2.2 has been released on March 19, 2018. This is a patch release to the JWST ETC V1.2.
Residual flat-field errors are reduced with multiple exposures treated as dithers.
Improved accuracy with redesigned and better-sampled PSFs for NIRCam and MIRI coronagraphy modes, and MIRI coronagraphic target acquisition
Inclusion of pupil mask for NIRISS imaging in long-wavelength filters.
Enhanced coronagraphy strategy with four options available for PSF subtraction.
Saturation is reported separately for both nod positions for NIRSpec IFU and MIRI MRS.
Coronagraphy modes report saturation for the science scene and PSF subtraction source separately.
Performance and robustness improvements.
The patch release version 1.2.2 includes the following accuracy improvements and features:
For more information and details, see the section « Observing Tools » in the Expertise Page of the site.