Index of /sp_phys/data/isis/ionogram_cdf/isis1/all/1980/121

• i1_av_all_1980121100022_v01.cdf
• i1_av_all_1980121100429_v01.cdf
• i1_av_all_1980121100433_v01.cdf
• i1_av_all_1980121100646_v01.cdf