../ dmsp_15_ephemeris_20230224.txt 22-Jun-2023 00:55 108169 dmsp_16_ephemeris_20230224.txt 22-Jun-2023 00:55 108224 dmsp_17_ephemeris_20230224.txt 22-Jun-2023 00:55 108152 dmsp_18_ephemeris_20230224.txt 22-Jun-2023 00:55 108115