../ dmsp_15_ephemeris_20200227.txt 22-Jun-2023 16:32 108255 dmsp_16_ephemeris_20200227.txt 22-Jun-2023 16:32 108176 dmsp_17_ephemeris_20200227.txt 22-Jun-2023 16:32 108173 dmsp_18_ephemeris_20200227.txt 22-Jun-2023 16:32 108145