../ dmsp_15_ephemeris_20140115.txt 22-Jun-2023 16:16 108138 dmsp_16_ephemeris_20140115.txt 22-Jun-2023 16:16 107939 dmsp_17_ephemeris_20140115.txt 22-Jun-2023 16:16 107853 dmsp_18_ephemeris_20140115.txt 22-Jun-2023 16:16 107848