https://tpm-ds.eo.esa.int/oads/data/Seasat/SE1_OPER_SEA_GEC_1P_19780820T214209_19780820T214222_000785_0056_2725_2C8D.ZIP https://tpm-ds.eo.esa.int/oads/data/Seasat/SE1_OPER_SEA_SLC_1P_19780820T214209_19780820T214222_000785_0056_2725_17FF.ZIP https://tpm-ds.eo.esa.int/oads/data/Seasat/SE1_OPER_SEA_PRI_1P_19780820T214209_19780820T214222_000785_0056_2725_C7E3.ZIP