../ dmsp_15_ephemeris_20130529.txt 22-Jun-2023 16:35 109513 dmsp_16_ephemeris_20130529.txt 22-Jun-2023 16:35 109591 dmsp_17_ephemeris_20130529.txt 22-Jun-2023 16:35 109559 dmsp_18_ephemeris_20130529.txt 22-Jun-2023 16:35 109540