0 0 RESERVED
1 1 1-BIT INDICATOR OF QUALITY
2 2 2-BIT INDICATOR OF QUALITY
6 6 4-BIT INDICATOR OF QUALITY CONTROL CLASS ACCORDING TO GTSPP
7 7 PERCENTAGE CONFIDENCE
8 8 0 - NOT SUSPECTED, 1 - SUSPECTED, 2 - RESERVED, 3 - INFORMAT"  ION NOT REQUIRED
21 21 1-BIT INDICATOR OF CORRECTION
63 63 MISSING VALUE
