../ dmsp_15_ephemeris_20130604.txt 22-Jun-2023 00:22 109572 dmsp_16_ephemeris_20130604.txt 22-Jun-2023 00:22 109528 dmsp_17_ephemeris_20130604.txt 22-Jun-2023 00:22 109638 dmsp_18_ephemeris_20130604.txt 22-Jun-2023 00:22 109541