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.