Eight folders:
	Each of the folders corresponds to one site. It contains image chips and metadata text files.

There are two types of files delivered for each set:
	(1) *.tif: corresponds to image chips for each site. 
		They are formed using a radius of 1000 pixels around the KML polygon centroid. 
		They are 8-bit depth files. 
	(2) *.txt: contains camera model RPC parameters and the line and sample offsets of each chip.
		 What is needed are the 80 coefficients (sRPC.adfLINE_NUM_COEFF[0...19],
		 sRPC.adfLINE_DEN_COEFF[0...19],sRPC.adfSAMP_NUM_COEFF[0...19],sRPC.adfSAMP_DEN_COEFF[0...19]),
		 scale and offset parameters for each coordinate element [LAT,LON,HEIGHT,line,sample] (total of 10 additional parameters). 
		 E.g. scale and offset for lattitude are sRPC.dfLAT_SCALE,sRPC.dfLAT_OFF. 
		 RPC parameters are used to obtain image coordinates (row,col) or (line,sample) by forward mapping a 3D point (X,Y,Z).
		 Finally, sampleOFFSET,lineOFFSET indicate the offset of the top(line)/left(sample) pixel of the image chip (*.tif file) with respect to NITF full image. This is needed to use the RPC parameters.
		 
		 Note that:sRPC.dfMIN_LONG, sRPC.dfMIN_LAT, sRPC.dfMAX_LONG, sRPC.dfMAX_LAT are not needed although available
		 Info on such parameters can be found: (formatting details ftp://ftp.ecn.purdue.edu/jshan/proceedings/asprs2005/Files/0031.pdf)

		Format of file:
		fprintf(fid,"%.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f, %.20f\n",
			sRPC.dfLINE_OFF, sRPC.dfSAMP_OFF, sRPC.dfLAT_OFF, sRPC.dfLONG_OFF, sRPC.dfHEIGHT_OFF, sRPC.dfLINE_SCALE, sRPC.dfSAMP_SCALE, sRPC.dfLAT_SCALE, sRPC.dfLONG_SCALE, sRPC.dfHEIGHT_SCALE,
			sRPC.adfLINE_NUM_COEFF[0],sRPC.adfLINE_NUM_COEFF[1],sRPC.adfLINE_NUM_COEFF[2],sRPC.adfLINE_NUM_COEFF[3],sRPC.adfLINE_NUM_COEFF[4],sRPC.adfLINE_NUM_COEFF[5],sRPC.adfLINE_NUM_COEFF[6],sRPC.adfLINE_NUM_COEFF[7],sRPC.adfLINE_NUM_COEFF[8],sRPC.adfLINE_NUM_COEFF[9],
			sRPC.adfLINE_NUM_COEFF[10],sRPC.adfLINE_NUM_COEFF[11],sRPC.adfLINE_NUM_COEFF[12],sRPC.adfLINE_NUM_COEFF[13],sRPC.adfLINE_NUM_COEFF[14],sRPC.adfLINE_NUM_COEFF[15],sRPC.adfLINE_NUM_COEFF[16],sRPC.adfLINE_NUM_COEFF[17],sRPC.adfLINE_NUM_COEFF[18],sRPC.adfLINE_NUM_COEFF[19],
			sRPC.adfLINE_DEN_COEFF[0],sRPC.adfLINE_DEN_COEFF[1],sRPC.adfLINE_DEN_COEFF[2],sRPC.adfLINE_DEN_COEFF[3],sRPC.adfLINE_DEN_COEFF[4],sRPC.adfLINE_DEN_COEFF[5],sRPC.adfLINE_DEN_COEFF[6],sRPC.adfLINE_DEN_COEFF[7],sRPC.adfLINE_DEN_COEFF[8],sRPC.adfLINE_DEN_COEFF[9],
			sRPC.adfLINE_DEN_COEFF[10],sRPC.adfLINE_DEN_COEFF[11],sRPC.adfLINE_DEN_COEFF[12],sRPC.adfLINE_DEN_COEFF[13],sRPC.adfLINE_DEN_COEFF[14],sRPC.adfLINE_DEN_COEFF[15],sRPC.adfLINE_DEN_COEFF[16],sRPC.adfLINE_DEN_COEFF[17],sRPC.adfLINE_DEN_COEFF[18],sRPC.adfLINE_DEN_COEFF[19],
			sRPC.adfSAMP_NUM_COEFF[0],sRPC.adfSAMP_NUM_COEFF[1],sRPC.adfSAMP_NUM_COEFF[2],sRPC.adfSAMP_NUM_COEFF[3],sRPC.adfSAMP_NUM_COEFF[4],sRPC.adfSAMP_NUM_COEFF[5],sRPC.adfSAMP_NUM_COEFF[6],sRPC.adfSAMP_NUM_COEFF[7],sRPC.adfSAMP_NUM_COEFF[8],sRPC.adfSAMP_NUM_COEFF[9],
			sRPC.adfSAMP_NUM_COEFF[10],sRPC.adfSAMP_NUM_COEFF[11],sRPC.adfSAMP_NUM_COEFF[12],sRPC.adfSAMP_NUM_COEFF[13],sRPC.adfSAMP_NUM_COEFF[14],sRPC.adfSAMP_NUM_COEFF[15],sRPC.adfSAMP_NUM_COEFF[16],sRPC.adfSAMP_NUM_COEFF[17],sRPC.adfSAMP_NUM_COEFF[18],sRPC.adfSAMP_NUM_COEFF[19],
			sRPC.adfSAMP_DEN_COEFF[0],sRPC.adfSAMP_DEN_COEFF[1],sRPC.adfSAMP_DEN_COEFF[2],sRPC.adfSAMP_DEN_COEFF[3],sRPC.adfSAMP_DEN_COEFF[4],sRPC.adfSAMP_DEN_COEFF[5],sRPC.adfSAMP_DEN_COEFF[6],sRPC.adfSAMP_DEN_COEFF[7],sRPC.adfSAMP_DEN_COEFF[8],sRPC.adfSAMP_DEN_COEFF[9],
			sRPC.adfSAMP_DEN_COEFF[10],sRPC.adfSAMP_DEN_COEFF[11],sRPC.adfSAMP_DEN_COEFF[12],sRPC.adfSAMP_DEN_COEFF[13],sRPC.adfSAMP_DEN_COEFF[14],sRPC.adfSAMP_DEN_COEFF[15],sRPC.adfSAMP_DEN_COEFF[16],sRPC.adfSAMP_DEN_COEFF[17],sRPC.adfSAMP_DEN_COEFF[18],sRPC.adfSAMP_DEN_COEFF[19],
			sRPC.dfMIN_LONG, sRPC.dfMIN_LAT, sRPC.dfMAX_LONG, sRPC.dfMAX_LAT,sampleOFFSET,lineOFFSET, 0));