17.17 Cycle 23 Calibration Plan

The Cycle 23 calibration plan continues the standard monitoring programs established in previous Cycles, while adjustments are being made as necessary to better characterize the instrument and to meet Cycle 23 GO calibration requirements. A Special program was added to study the coronagraphic capabilities of BAR5 and to remeasure the CCD gain values of Amps A, C, and D. Extra observations were added to enhance the calibration of CTI effects and to monitor the focus offset between STIS and the other HST instruments. Additionally, a special program was carried out to assess the fading of the HITM2 calibration lamp at the bluest FUV wavelength settings.

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