../ dmsp_15_ephemeris_20130405.txt 22-Jun-2023 00:22 108057 dmsp_16_ephemeris_20130405.txt 22-Jun-2023 00:22 108176 dmsp_17_ephemeris_20130405.txt 22-Jun-2023 00:22 108331 dmsp_18_ephemeris_20130405.txt 22-Jun-2023 00:22 108372