17.19 Cycle 25 Calibration Plan

The Cycle 25 calibration plan continues the standard monitoring programs established in previous Cycles, with minor adjustments to improve characterization of the instrument and meet Cycle 25 GO calibration requirements. A special program was added to optimize STIS spatial scans by determining the scan angle alignment and testing the flux repeatability of trailed observations in a wide aperture. Additionally, a special program was included to derive a new set of sensitivity curves for the E140M grating.

A detailed summary of the calibration plans can be found on the STIS Calibration web page.