../ dmsp_15_ephemeris_20200429.txt 22-Jun-2023 00:43 109554 dmsp_16_ephemeris_20200429.txt 22-Jun-2023 00:43 109544 dmsp_17_ephemeris_20200429.txt 22-Jun-2023 00:43 109643 dmsp_18_ephemeris_20200429.txt 22-Jun-2023 00:43 109492