../ dmsp_15_ephemeris_20150808.txt 22-Jun-2023 16:16 109639 dmsp_16_ephemeris_20150808.txt 22-Jun-2023 16:16 109529 dmsp_17_ephemeris_20150808.txt 22-Jun-2023 16:16 109635 dmsp_18_ephemeris_20150808.txt 22-Jun-2023 16:16 109692 dmsp_19_ephemeris_20150808.txt 22-Jun-2023 16:16 109547