../ dmsp_15_ephemeris_20111115.txt 22-Jun-2023 00:18 109367 dmsp_16_ephemeris_20111115.txt 22-Jun-2023 00:18 109346 dmsp_17_ephemeris_20111115.txt 22-Jun-2023 00:18 109500 dmsp_18_ephemeris_20111115.txt 22-Jun-2023 00:18 109425