MIRI Predicted Performance

The performance of JWST's Mid-Infrared Instrument (MIRI) is predicted by a model that uses a number of parameters derived from laboratory measurements.

The performance of MIRI has been studied in detail by Glasse et al. (2015) and Boccaletti et al. (2015). These studies bring together performance metrics from laboratory testing with a sensitivity model formulated by Swinyard et al. (2004). These models have been adapted by the Exposure Time Calculator (ETC)Operational overheads (Gordon et al. 2014), including target acquisition, small angle maneuvers to allow efficient background subtraction, time spent moving MIRI mechanisms, or taking calibration observations are incorporated and included in the final time calculated by the Astronomer's Proposal Tool (APT)

Users should ultimately use the ETC for all sensitivity calculations.

Available JWST Mid-Infrared Instrument (MIRI) performance articles are listed below:

More articles will be released in the near future. 


Boccaletti, A. et al. 2015, PASP, 127, 633
The Mid-Infrared Instrument for the James Webb Space Telescope, V: Predicted Performance of the MIRI Coronagraphs

Glasse, A. et al., 2015, PASP, 127, 686
The Mid-Infrared Instrument for the James Webb Space Telescope, IX: Predicted Sensitivity
Updated version

Gordon, K. D. et al., 2014, PASP, 127, 696
The Mid-Infrared Instrument for the James Webb Space Telescope, X: Operations and Data Reduction

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Originally published