../ dmsp_15_ephemeris_20130701.txt 22-Jun-2023 16:35 109531 dmsp_16_ephemeris_20130701.txt 22-Jun-2023 16:35 109538 dmsp_17_ephemeris_20130701.txt 22-Jun-2023 16:35 109696 dmsp_18_ephemeris_20130701.txt 22-Jun-2023 16:35 109581