1 1 AN ERROR HAS BEEN DETECTED
2 2 MESSAGE FROM L1
3 3 MESSAGE FROM L2
4 4 MESSAGE FROM ANCILLARY DATA
5 5 MESSAGE FROM FITTING PROCEDURE
6 6 FILE OPENING
7 7 FILE READING
8 8 QUALITY FLAG
9 9 LEVEL 2 FROM LINEAR REGRESSION(F_QUAL), REPORT A PIXEL WHERE L2 ARE NOT FULLY TRUSTED
10 10 EMPTY FIELD OR DATA
11 11 MISSING SURFACE PRESSURE VALUE
12 12 RADIANCE FILTERING
