0 0 THE EXPECTED AMSU MEASUREMENTS ARE AVAILABLE, OF GOOD QUALITY AND COLLOCATED WITH IASI FOR PROCESSING
1 1 AMSU-A DATA ARE AVAILABLE BUT OF DEGRADED QUALITY (ACCORDING TO AMSU L1 FLAGS OR QC TESTS) AND NOT USED FOR PROCESSING
2 2 NO COINCIDENT (TIME AND SPACE) AMSU MEASUREMENTS AVAILABLE FOR PROCESSING
7 7 MISSING VALUE
