../ dmsp_15_ephemeris_20150924.txt 22-Jun-2023 16:16 109608 dmsp_16_ephemeris_20150924.txt 22-Jun-2023 16:16 109599 dmsp_17_ephemeris_20150924.txt 22-Jun-2023 16:16 109622 dmsp_18_ephemeris_20150924.txt 22-Jun-2023 16:16 109686 dmsp_19_ephemeris_20150924.txt 22-Jun-2023 16:16 109729