Hello, on this zip file you have : SPOTChilbolton20060610_5x5_TOA.bil SPOTChilbolton20060610_5x5_TOC.bil Subset of the SPOT5/HRG1 Generic Binary array file (data stored by row), band interleaved by line (BIL) format Data are stored in the order (line1,band1),(line1,band2),(line1,band3),(line1,band4),(line2,band1),... Data format is an unsigned integer (2 bytes) Data Type is litlle endian (Host Intel, ENVI data type=0) Pixels are registered by their upper left corner Envi header file (.hdr) is available GENERAL CHARACTERISTICS Acquisition Date : 10/6/2006 Acquisition Hour : 11:32:12 Samples : 522 Lines : 542 Bands : 4 Solar zenith angle (°) : 28.90 Solar azimuth angle (°) : 164.37 PROJECTION CHARACTERISTICS This image was geo-referenced by SPOTImage (SPOTViewBasic product) Projection: United Kingdom Datum: Ordnance Survey of Great Britain '36 Units : Meters Pixel Size (Easting) : 1.0000000000e+001 Pixel Size (Northing) : 1.0000000000e+001 Upper Left Corner Easting : 437298.9463 Upper Left Corner Northing : 143403.6475 RADIOMETRIC CHARACTERISTICS REFLECTANCE = DIGITAL COUNT / 1000 TOA reflectance (Top of Atmosphere) TOC reflectance (Top of Canopy)