1 1 TIME FIELD IS BAD BUT CAN PROBABLY BE INFERRED FROM THE PREVIOUS GOOD TIME
2 2 TIME FIELD IS BAD AND CANNOT BE INFERRED FROM THE PREVIOUS GOOD TIME
3 3 THIS RECORD STARTS A SEQUENCE THAT IS INCONSISTENT WITH PREVIOUS TIMES (I.E. THERE IS A TIME DISCONTINUITY). THIS MAY OR MAY NOT BE ASSOCIATED WITH A 
4 4 START OF A SEQUENCE THAT APPARENTLY REPEATS SCAN TIMES THAT HAVE BEEN PREVIOUSLY ACCEPTED
5 5 SCAN LINE WAS NOT CALIBRATED BECAUSE OF BAD TIME
6 6 SCAN LINE WAS CALIBRATED USING FEWER THAN THE PREFERRED NUMBER OF SCAN LINES BECAUSE OF PROXIMITY TO START OR END OF DATA OR TO A DATA GAP
7 7 SCAN LINE WAS NOT CALIBRATED BECAUSE OF BAD OR INSUFFICIENT PRT DATA
8 8 SCAN LINE WAS CALIBRATED BUT WITH MARGINAL PRT DATA
9 9 SOME UNCALIBRATED CHANNELS ON THIS SCAN
10 10 UNCALIBRATED DUE TO INSTRUMENT MODE
11 11 QUESTIONABLE CALIBRATION BECAUSE OF ANTENNA POSITION ERROR OF SPACE VIEW
12 12 QUESTIONABLE CALIBRATION BECAUSE OF ANTENNA POSITION ERROR OF BLACK BODY
13 13 NOT EARTH LOCATED BECAUSE OF BAD TIME
14 14 EARTH LOCATION QUESTIONABLE BECAUSE OF QUESTIONABLE TIME CODE (SEE TIME PROBLEM CODE BITS)
15 15 EARTH LOCATION QUESTIONABLE - ONLY MARGINAL AGREEMENT WITH REASONABLENESS CHECK
16 16 EARTH LOCATION QUESTIONABLE - FAILS REASONABLENESS CHECK
17 17 EARTH LOCATION QUESTIONABLE BECAUSE OF ANTENNA POSITION CHECK
18 18 SCAN LINE CALIBRATION COLD BLACK BODY
19 19 SCAN LINE CALIBRATION WARM BLACK BODY
20 20 SCAN LINE CALIBRATION SPACE VIEW
21 21 EARTH VIEW
