Hello, on this zip file you have : Recal_SPOTSudOuest020720_3x3.bil Subset of the SPOT2/HRV1 Generic Binary array file, band interleaved by line (BIL) format Data format is an unsigned integer (2 bytes) Data are stored in the order (line1,band1),(line1,band2),(line1,band3),(line2,band2),... Pixels are registered by their upper left corner Envi header file (.hdr) is available GENERAL CHARACTERISTICS Acquisition Date : 20/7/2002 Acquisition Hour : 11:18:22 K-J Identification : 042-262 Samples : 154 Lines : 154 Bands : 3 View zenith angle (°) : 27.90 View azimuth angle (°) : 285.10 Solar zenith angle (°) : 24.20 Solar azimuth angle (°) : 155.07 REFLECTANCE = DIGITAL COUNT / 1000 PROJECTION CHARACTERISTICS This image was geo-referenced by SPOTImage (SPOTViewBasic product), corrected by INRA/CSE according to the geographical coordinates provided by CESBIO Map Projection Name : UTM 31, North Datum : WGS-84 Units : units=Meters Pixel Size (Easting) : 20.00000000 Pixel Size (Northing) : 20.00000000 Upper Left Corner Easting : 355987.008 Upper Left Corner Northing : 4820089.683 TOA reflectance (Top of Atmosphere)