../ dmsp_15_ephemeris_20130815.txt 22-Jun-2023 16:35 109605 dmsp_16_ephemeris_20130815.txt 22-Jun-2023 16:35 109590 dmsp_17_ephemeris_20130815.txt 22-Jun-2023 16:35 109653 dmsp_18_ephemeris_20130815.txt 22-Jun-2023 16:35 109626