../ dmsp_15_ephemeris_20120115.txt 22-Jun-2023 00:19 107927 dmsp_16_ephemeris_20120115.txt 22-Jun-2023 00:19 107852 dmsp_17_ephemeris_20120115.txt 22-Jun-2023 00:19 108068 dmsp_18_ephemeris_20120115.txt 22-Jun-2023 00:19 107974