The JWST NIRISS has two modes for slitless spectroscopy (wide field slitless spectroscopy and single object slitless spectroscopy) and two modes for imaging (aperture masking interferometry, and regular imaging). The different modes enable a variety of science observations and the predicted performance is summarized.
NIRISS enables a variety of science observations with its four available observing modes. The following pages provide the predicted performance and include:
- NIRISS Imaging Sensitivity: Point source brightesses that give S/N=10 in 10 ks in the imaging filters
- NIRISS wide field slitless spectroscopy (WFSS) sensitivity: the unresolved line sensitivity with the GR150 grisms for the WFSS observing mode
- NIRISS bright limits: For the single object spectroscopy (SOSS) and aperture masking interferometry (AMI) mode subarrays and detector readout parameters