Hello, on this zip file you have : SPOTNezer000720_8x11TOA.bil & SPOTNezer000720_8x11TOC.bil Subset of the SPOT4/HRVIR2 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 : 20/7/2000 Acquisition Hour : 11:29:46 K-J Identification : 036-260 Samples : 402 Lines : 552 Bands : 4 Band4 : SWIR = 1580-1750 nm View zenith angle (°) : 28.90 View azimuth angle (°) : 285.90 Solar zenith angle (°) : 25.01 Solar azimuth angle (°) : 157.24 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 : Meters Pixel Size (Easting) : 20.00000000 Pixel Size (Northing) : 20.00000000 Upper Left Corner Easting : 327985.3300 Upper Left Corner Northing : 263008.9000 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) TOC reflectance (Top of Canopy)