../ dmsp_15_ephemeris_20191015.txt 22-Jun-2023 00:42 109617 dmsp_16_ephemeris_20191015.txt 22-Jun-2023 00:42 109589 dmsp_17_ephemeris_20191015.txt 22-Jun-2023 00:42 109494 dmsp_18_ephemeris_20191015.txt 22-Jun-2023 00:42 109565