Hello, on this zip file you have : SPOTNezer000801_8x11.bil Subset of the SPOT4/HRVIR1 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),(line1,band4),(line2,band2),... Pixels are registered by their upper left corner Envi header file (.hdr) is available GENERAL CHARACTERISTICS Acquisition Date : 1/8/2000 Acquisition Hour : 10:58:49 K-J Identification : 036-260 Samples : 402 Lines : 552 Bands : 4 Band4 : SWIR = 1580-1750 nm View zenith angle (°) : 15.20 View azimuth angle (°) : 100.50 Solar zenith angle (°) : 30.10 Solar azimuth angle (°) : 144.48 REFLECTANCE = DIGITAL COUNT / 1000 PROJECTION CHARACTERISTICS This image was geo-referenced by SPOTImage (SPOTViewBasic product) Map Projection Name : France Zone III sud Datum : Nouvelle Triangulation Francaise IGN Units : Meter Pixel Size (Easting) : 20.00000000 Pixel Size (Northing) : 20.00000000 Upper Left Corner Easting : 327997.3300 Upper Left Corner Northing : 263007.2200 SemiMajorAxis : 6378249.2 SemiMinorAxis : 6356515.0 Latitude of projection origin (°) : 44.100000 Longitude of central meridian (°) : 2.337229 False Easting : 600000.0 False Northing : 200000.0 Longitude of 1st Standard Parallel (°) : 43.199291 Longitude of 2nd Standard Parallel (°) : 44.996094 TOA reflectance (Top of Atmosphere)