Previous IR Photometric Calibrations

Here we present previous calibrations for the WFC3/IR instrument.

• Models: Models for the CALSPEC standard white dwarfs were improved and the Vega reference flux was increased (Bohlin et al. 2020). As a consequence, the standard white dwarf fluxes increase ~1.5% in the range 1-1.6 micron covered by the IR detector.
• Flat fields:  the updated 'pixel to pixel' flats correct for spatial sensitivity residuals up to 0.5% in the center of the detector and up to 2% at the edges (ISR 2021-01).  A new set of 'delta' flats correct for low-sensitivity artifacts known as 'blobs' in six filters (F098M, F105W, F110W, F125W, F140W, and F160W), as new blobs appear over time (ISR 2021-10).
• Inverse Sensitivity Tables: See below.

• Inverse Sensitivity Tables: These are provided below for both the infinite aperture (6 arcseconds) and for an aperture of radius r=0.4 arcseconds (about 3 pixels).