../ dmsp_15_ephemeris_20130712.txt 22-Jun-2023 16:15 109510 dmsp_16_ephemeris_20130712.txt 22-Jun-2023 16:15 109633 dmsp_17_ephemeris_20130712.txt 22-Jun-2023 16:15 109693 dmsp_18_ephemeris_20130712.txt 22-Jun-2023 16:15 109583