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).
JWST Mid-Infrared Instrument (MIRI) performance pages include discussions on:
- MIRI backgrounds
- MIRI bright source limits
- MIRI coronographic performance
- MIRI photometric performance
- MIRI point spread function
- MIRI sensitivity
- MIRI spectro-photometric performance
- MIRI wavelength solutions
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
Gordon, K. D. et al., 2014, PASP, 127, 696
The Mid-Infrared Instrument for the James Webb Space Telescope, X: Operations and Data Reduction