../ dmsp_15_ephemeris_20191125.txt 22-Jun-2023 16:57 109513 dmsp_16_ephemeris_20191125.txt 22-Jun-2023 16:57 109327 dmsp_17_ephemeris_20191125.txt 22-Jun-2023 16:57 109254 dmsp_18_ephemeris_20191125.txt 22-Jun-2023 16:57 109294