Figure 2 shows the evolution and current state of the CDS NIS1 intensity calibration. The three versions of the calibration are:

• Version 1. Marked "original" on the plot, with dashed line.
• Version 2. Marked "previous" on the plot, with dot-dashed line
• Version 3. Marked "current" on the plot, with solid line, together with dotted lines showing +/- 15% estimated error.