../ dmsp_15_ephemeris_20200327.txt 22-Jun-2023 00:43 108230 dmsp_16_ephemeris_20200327.txt 22-Jun-2023 00:43 108067 dmsp_17_ephemeris_20200327.txt 22-Jun-2023 00:43 108346 dmsp_18_ephemeris_20200327.txt 22-Jun-2023 00:43 108119