The detector pixel quality indicates the expected signal quality, expressed as a value in the range 0 to 1. The dynamic pixel quality is determined from several (static and dynamic) tests. The static tests of the pixel quality algorithm were applied to on-ground measurements. The dynamic tests use in-flight dark-flux and noise data. Two versions of the pixel quality are given, which should have negligible differences.
- Official – Nominal version, pixel quality is derived using dynamic dark-flux and background noise, derived with ICM & L01b processor.
- Beta-nominal – Development version, pixel quality is derived from beta-nominal dark-flux and biweight background noise.
The quality of a pixel is indicated as:
- unusable: pixels outside the illuminated region
- worst: 0 <= value < 0.1
- bad: 0 <= value < 0.8
- good: value >= 0.8
