Hello, I'm trying to process a stack of CSK images withing a very small test area (less than 0.5 km2), and the Interferometric process stops when coregistering the images , I think (error: DATA INCOMPABILITY). Is there any minimum size required to process these stacks? I have not had this problem with bigger areas. I cannot enclose the full log file so I paste just one part of it here: *****) ) Amplitude cross corr: NO VALID POINTS FOUND FOR THE CO_REGISTRATION *****) ) *****) ) *****) ) WARNING : DATA INCOMPATIBILITY [COREGISTRATION ERROR] ((null)) *****) ) Co-Registration MASTER_0-SLAVE_8 : [20120803]-[20140724] SARscapeInterferogramStacking ENVI 5.1.1 Oct 29 2014 W64 *****) ) FILE=..\..\..\source\library\interf_utility\sars_cross_corr.cpp LINE=2740 (errno = 0)Error occour during first shift estimation form amplitude of class Cross-Corr in image: E:\santiago\Cosmo_CoBlanco\SBAS\2012-2014\aoi_rsp\CSKS4_SCS_B_HI_07_VV_RA_SF_20140724105318_20140724105325_vv_slc_rsp *****) ) closing Master *****) ) closing Slave *****) ) This Pair cannot be coregisterd *****) ) TOTAL OPEN FILE : 20 *****) ) EC = 100000 PEC = 10 SEC = -1 *****) ) *****) ) ERROR : DATA INCOMPATIBILITY [DATA INCOMPATIBILITY] ((null)) *****) ) Co-Registration MASTER_0-SLAVE_8 : [20120803]-[20140724] SARscapeInterferogramStacking ENVI 5.1.1 Oct 29 2014 W64 *****) ) FILE=..\..\..\source\main\main_sbas\utility\sars_sbas_utility.cpp LINE=11486 (errno = 0) *****) ) CLIENT ID : 4317 Thanks, Santiago