Landsat Missions
Band-specific gap mask files are included with every Scan Line Corrector (SLC)-off Level 1 Terrain (L1T) corrected standard product. These ancillary data allow you to identify the location of all pixels affected by the original data gaps in the primary SLC-off scene.
The gap mask is provided as a series of individual band files, in compressed (GZIP) GeoTIFF format.
Figure 1. Sample SLC-Off to SLC-On gap mask |
Gap Mask Legend Values:
For a standard SLC-off product, the data values contained within the gap mask file are as listed below.
Value | Meaning |
---|---|
0 | No data (data were missing in the original SLC-off scene) |
1 | Populated data (data were present in the original SLC-off scene) |