../ dmsp_15_ephemeris_20200905.txt 22-Jun-2023 00:44 109679 dmsp_16_ephemeris_20200905.txt 22-Jun-2023 00:44 109521 dmsp_17_ephemeris_20200905.txt 22-Jun-2023 00:44 109736 dmsp_18_ephemeris_20200905.txt 22-Jun-2023 00:44 109683