../ dmsp_15_ephemeris_20181023.txt 22-Jun-2023 00:38 109562 dmsp_16_ephemeris_20181023.txt 22-Jun-2023 00:38 109571 dmsp_17_ephemeris_20181023.txt 22-Jun-2023 00:38 109544 dmsp_18_ephemeris_20181023.txt 22-Jun-2023 00:38 109525