../ dmsp_15_ephemeris_20220520.txt 22-Jun-2023 00:51 109692 dmsp_16_ephemeris_20220520.txt 22-Jun-2023 00:51 109668 dmsp_17_ephemeris_20220520.txt 22-Jun-2023 00:51 109506 dmsp_18_ephemeris_20220520.txt 22-Jun-2023 00:51 109585