../ dmsp_15_ephemeris_20130412.txt 22-Jun-2023 00:22 109578 dmsp_16_ephemeris_20130412.txt 22-Jun-2023 00:22 109694 dmsp_17_ephemeris_20130412.txt 22-Jun-2023 00:22 109726 dmsp_18_ephemeris_20130412.txt 22-Jun-2023 00:22 109665