../ dmsp_15_ephemeris_20191123.txt 22-Jun-2023 16:32 109537 dmsp_16_ephemeris_20191123.txt 22-Jun-2023 16:32 109391 dmsp_17_ephemeris_20191123.txt 22-Jun-2023 16:32 109426 dmsp_18_ephemeris_20191123.txt 22-Jun-2023 16:32 109259