../ dmsp_15_ephemeris_20130712.txt 22-Jun-2023 00:22 109510 dmsp_16_ephemeris_20130712.txt 22-Jun-2023 00:22 109633 dmsp_17_ephemeris_20130712.txt 22-Jun-2023 00:22 109693 dmsp_18_ephemeris_20130712.txt 22-Jun-2023 00:22 109583