MIRI Coronagraphy Calibration Status

The overall calibration status and estimated accuracy of MIRI coronagraphy are described in this article; please also see the article on known issues affecting MIRI coronagraphic data.

Photometric calibration

Photometric calibration: Uncertainties are of order 3% or better at all wavelengths, due to variation in measured values from one standard star to another. The telescope/instrument stability are better than 0.5% over time based on repeated measurements of one star in F770W. An update in Fall 2023 accounts for the time-dependent sensitivity in F1550C and F2300C. 

Notable updates

Originally published