What SAR imagery products are available with Capella?

Standard SAR Imagery Products

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 

Product 

Imaging Mode 

Nominal Scene Size 

Azimuth Resolution 

Slant Range Resolution 

Look Angle Range 

Spot SLC

Spotlight

5 km x 5 km 

0.5 m 

0.3 m 

25° to 40° 

Site SLC 

Sliding Spotlight 

5 km x 10 km 

1.0 m 

0.5 m 

25° to 40° 

Strip SLC 

Stripmap 

5 km x 20 km 

1.2 m 

0.75 m 

25° to 40° 

 

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) 
  • UTM-WGS84 map projection

Product 

Imaging Mode 

Nominal 

Scene Size 

# Of Looks 

Azimuth 

Resolution 

Ground Range 

Resolution 

Pixel Spacing 

Look Angle Range 

Spot GEO 

Spotlight 

5 km x 5 km 

9 

0.5 m 

0.5 m to 0.7 m 

0.35 m 

25° to 40° 

Site GEO 

Sliding Spotlight 

5 km x 10 km 

5 

1.0 m 

0.8 m to 1.2 m 

0.6 m 

25° to 40° 

Strip GEO 

Stripmap 

5 km x 20 km 

1 

1.2 m 

1.1 m to 1.6 m 

0.8 m 

25° to 40° 

 

Extended SAR imagery products

Extended SAR imagery products provide increased acquisition opportunities and shorter revisit time periods via imaging acquisitions in broader look angle ranges than the standard products. All other imaging acquisition parameters use the same settings as standard products.

 

SLC Extended

Product 

Imaging Mode 

Nominal 

Scene Size 

Azimuth Resolution 

Slant Range Resolution 

Look Angle Range 

Spot SLC 

(Extended) 

Spotlight 

5 km x 5 km 

0.5 m 

0.3 m 

15° to 40° 

Site SLC 

(Extended) 

Sliding Spotlight 

5 km x 10 km 

1.0 m 

0.5 m 

15° to 45° 

Strip SLC 

(Extended) 

Stripmap 

5 km x 20 km 

1.2 m 

0.75 m 

15° to 45° 

 

Geo Extended

Product

Imaging Mode

 Nominal 

Scene Size 

# Of Looks 

Azimuth 

Resolution 

Ground Range 

Resolution 

Pixel Spacing 

Look Angle Range 

Spot GEO 

(Extended) 

Spotlight 

5 km x 5 km 

9 

0.5 m 

0.5 m to 1.2 m 

0.35 m 

15° to 40° 

Site GEO 

(Extended) 

Sliding Spotlight 

5 km x 10 km 

5 

1.0 m 

0.7 m to 1.9 m 

0.6 m 

15° to 45° 

Strip GEO 

(Extended) 

Stripmap 

5 km x 20 km 

1 

1.2 m 

1.1 m to 2.7 m 

0.8 m 

15° to 45° 

 

Custom SAR Imagery Products

Capella's custom SAR imagery acquisition is unique in that it provides optimal utilization of satellite capacity by allowing imaging across the full 5°-45° accessible look angle range of the Capella radar system (varies slightly by imaging mode). 

Custom SAR imagery products are available to users by submitting new acquisition tasking requests using either the Capella Console or Capella API. You can review a table of our custom parameters here.

Imaging acquisition parameters for custom SAR imagery products. In GEO image product type the number of looks in azimuth is fixed to 9, 5 and 1 for Spot, Site and Strip, respectively. When custom collects are requested SLC image product type is recommended in order to optimize multi-looking and geocoding to match user needs.

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