Notation	Name	Description	Status
1	Time field is bad but can probably be inferred from the previous good time		stable
2	Time field is bad and cannot be inferred from the previous good time		stable
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 spacecraft clock update (see scan line status flags for ATOVS)		stable
4	Start of a sequence that apparently repeats scan times that have been previously accepted		stable
5	Scan line was not calibrated because of bad time		stable
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		stable
7	Scan line was not calibrated because of bad or insufficient PRT data		stable
8	Scan line was calibrated but with marginal PRT data		stable
9	Some uncalibrated channels on this scan		stable
10	Uncalibrated due to instrument mode		stable
11	Questionable calibration because of antenna position error of space view		stable
12	Questionable calibration because of antenna position error of black body		stable
13	Not Earth located because of bad time		stable
14	Earth location questionable because of questionable time code (see time problem code bits)		stable
15	Earth location questionable - only marginal agreement with reasonableness check		stable
16	Earth location questionable - fails reasonableness check		stable
17	Earth location questionable because of antenna position check		stable
18	Scan line calibration cold black body		stable
19	Scan line calibration warm black body		stable
20	Scan line calibration space view		stable
21	Earth view		stable