../ dmsp_15_ephemeris_20200317.txt 22-Jun-2023 00:43 108086 dmsp_16_ephemeris_20200317.txt 22-Jun-2023 00:43 108211 dmsp_17_ephemeris_20200317.txt 22-Jun-2023 00:43 108278 dmsp_18_ephemeris_20200317.txt 22-Jun-2023 00:43 108165