https://tpm-ds.eo.esa.int/oads/data/Radarsat-1/RS1_OPER_SAR_EL_SGF_19980731T224215_N29-324_E112-282_0000_v0101.SIP.ZIP
https://tpm-ds.eo.esa.int/oads/data/Radarsat-1/RS1_OPER_SAR_SN_SCN_19980710T103510_N28-933_E112-400_0000_v0101.SIP.ZIP