Coregistration between 20160827 and 20160821
4723 points left after culling
20160827 ORB_SLC_R_OFFSET 22.0784447992815 
20160827 ORB_SLC_AZ_OFFSET -25.2396421138414 
20160827 RANGE_OFFSET  1.23300004692283 
20160827 RANGE_PIXEL_SIZE 2.329562e+00 
20160827 AZIMUTH_PIXEL_SIZE 15.60669070768 
20160827 Translation -0.146000000000 -25.185000000000 
20160827 Azimuth variation in range and azimuth 0.000003113400  1.000001252000