Index of /sp_phys/data/isis/ionogram_cdf/isis2/RES_75N_265E/1974/106
i2_av_res_1974106000615_v01.cdf
i2_av_res_1974106000726_v01.cdf
i2_av_res_1974106000822_v01.cdf
i2_av_res_1974106044615_v01.cdf