Anomaly classification checker

Defaults are invented for illustration: they are not measurements. Part 1 uses the severity bands as two vendors print them for hot spot findings: Raptor Maps (Low under 10, Medium 10 to 20, High 20 or more; anomaly glossary, copyright 2025) and Sitemark (Mild 0 to 5, Serious 5 to 15, Critical 15 or more; help page dated 8 January 2024). The normalised delta T uses Sitemark's printed formula, 1000 divided by GTI, times delta T. Whether either vendor applies its bands to the raw or the normalised value is not stated on the pages read. Part 2 and part 3 are plain counting and probability. Enter numbers with a point or a comma as the decimal mark. In whole-number boxes you may write 20,000 or 20.000.

1. Severity band for one finding

Delta T (K)

Irradiance in the module plane, GTI (W/m2)

2. Precision and recall for one class

Flagged and confirmed (true positives)

Flagged but wrong (false positives)

Real but not given this class (false negatives)

3. How many flags are false when faults are rare

Modules inspected

Modules with a real anomaly (%)

Sensitivity (%)

Specificity (%)