../ dmsp_15_ephemeris_20220308.txt 22-Jun-2023 16:31 108260 dmsp_16_ephemeris_20220308.txt 22-Jun-2023 16:31 108117 dmsp_17_ephemeris_20220308.txt 22-Jun-2023 16:31 108208 dmsp_18_ephemeris_20220308.txt 22-Jun-2023 16:31 108228