../ dmsp_15_ephemeris_20220306.txt 22-Jun-2023 00:50 108147 dmsp_16_ephemeris_20220306.txt 22-Jun-2023 00:50 108202 dmsp_17_ephemeris_20220306.txt 22-Jun-2023 00:50 108063 dmsp_18_ephemeris_20220306.txt 22-Jun-2023 00:50 108137