../ dmsp_15_ephemeris_20171016.txt 22-Jun-2023 00:35 109515 dmsp_16_ephemeris_20171016.txt 22-Jun-2023 00:35 109620 dmsp_17_ephemeris_20171016.txt 22-Jun-2023 00:35 109565 dmsp_18_ephemeris_20171016.txt 22-Jun-2023 00:35 109464