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    19-Apr-2014
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Appendix D. Calibration Constant and Reference Replica Power
The influence of Orbit precision in the quality of ERS SAR Interferometry
CEOS format for PRI - ERS SAR.PRI CCT FORMAT
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CEOS format for PRI - ERS SAR.PRI CCT FORMAT

SAR Precision Image

The Precision Image is a multi-look (speckle-reduced), ground range, system corrected image. It is the product applicable for most users interested in remote sensing applications. The product is calibrated and corrected for the SAR antenna pattern and range-spreading loss: radar backscatter can be derived from the product for geophysical modelling, but no correction is applied for terrain-induced radiometric effects. The image is not geocoded, and terrain distortion (foreshortening and layover) has not been removed.

 
Product characteristics

Pixel size (range - across track) 	12.5 m 
	   (azimuth - across track) 	12.5 m 
Scene area (range - across track) 	100 km 
           (azimuth - along track)	at least 102.5 km 
Scene size (range - pixels) 		8000 pixels per line 
           (azimuth - lines) 		at least 8200 lines 
Pixel depth 				16 bits 
Product location accuracy(range) 	100 m  
		         (azimuth)	200m 
Total product volume 			~ 131 Mbytes 
Annotation in image 			lat./long. of scene centre and the four
					corners 
Projection 				ground-range 
Number of looks 			3 

Product standard medium 
CCT
E2
E5 (*)
(Photographic print or film (positive or negative)

(*) Not from all the PAFs.

Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry