Data Formats Summary
| Data Product |
Summary |
Format |
|
Single Look Complex
(SLC)
|
- Contains both amplitude and phase of the radar signal
- Range-compressed and focused SAR image in slant-range geometry
- Georeferenced using orbit data and Range-Doppler projected
|
GeoTIFF + JSON |
|
Geocoded Ellipsoid Corrected
(GEC)
|
- Contains amplitude information only
- Range-compressed, detected, focused and multi-looked SAR image
- Multi-look techniques applied to enhance radiometric resolution
- Resampled and projected onto WGS84 ellipsoid with average scene center height
- Universal Transverse Mercator (UTM) and Universal Polar Stereographic (UPS) projections
|
GeoTIFF + JSON |
|
Geocoded Terrain Corrected
(GEO)
|
- Contains amplitude information only
- Range-compressed, detected, focused and multi-looked SAR image
- Multi-look techniques applied to enhance radiometric resolution
- Terrain-height corrected using a high-resolution Digital Elevation Model (DEM)
- Universal Transverse Mercator (UTM) and Universal Polar Stereographic (UPS) projections
|
GeoTIFF + JSON |
|
Sensor Independent Complex Data
(SICD)
|
- Contains both amplitude and phase of the radar signal
- Range-compressed and focused SAR image in slant-range geometry
- Sensor independent format
|
NITF |
|
Sensor Independent Derived Data
(SIDD)
|
- Contains amplitude information only
- Range-compressed, detected, focused and multi-looked SAR image
- Multi-look techniques applied to enhance radiometric resolution
- Planar Gridded Display (PGD) projection
- Sensor independent format
|
NITF |
|
Compensated Phase History Data
(CPHD)
|
- Contains raw phase history data that is compensated for hardware timing & platform motion
- Sensor independent format
- Only available to United States Government customers
|
CPHD |
Data Delivery
The SLC, GEC, & GEO data products are delivered in a 4-file bundle that includes:
- One cloud-optimized GeoTIFF image file
- One cloud-optimized GeoTIFF preview image file
- One extended metadata file in JSON format
- One STAC metadata file in JSON format
SICD & SIDD are single NITF format files that include the embedded metadata in XML format as defined by NGA standards v1.2.1 for SICD and v2.0 for SIDD.
