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About GTSPP Data Quality Flags

Class Quality Description Comment
Flag 0
No QC done No quality control has been assigned to this element. Flag 0 data are the level at which all data enter the working archive. They have not yet been quality controlled.
Flag 1
Good data The element appears to be correct. Flag 1 data are top quality data in which no malfunctions have been identified and all real features have been verified during the quality control process.
Flag 2
"Probably" good data The element appears to be probably good. Flag 2 data are good data in which some features (probably real) are present but these are unconfirmed. Flag 2 data are also data in which minor malfunctions may be present but these errors are small and/or can be successfully corrected without seriously affecting the overall quality of the data.
Flag 3
"Probably" bad data The element appears doubtful Flag 3 data are suspect data in which unusual, and probably erroneous features are observed.
Flag 4
Bad data The element appears erroneous Flag 4 data are those in which obviously erroneous values are observed.
Flag 5
Changed The element has been changed Flag 5 data have been altered by a QC Centre, with original values (before the change) preserved in the history record of the profile.
Flags 6 - 8
Reserved Reserved for future use Flags 6 - 8 are reserved for future use.
Flag 9
Elemen missing The element is missing Flag 9 data indicate that the element is missing.