../ dmsp_15_ephemeris_20200306.txt 22-Jun-2023 16:32 108164 dmsp_16_ephemeris_20200306.txt 22-Jun-2023 16:32 108224 dmsp_17_ephemeris_20200306.txt 22-Jun-2023 16:32 108179 dmsp_18_ephemeris_20200306.txt 22-Jun-2023 16:32 108193