../ dmsp_15_ephemeris_20201103.txt 22-Jun-2023 00:45 109560 dmsp_16_ephemeris_20201103.txt 22-Jun-2023 00:45 109505 dmsp_17_ephemeris_20201103.txt 22-Jun-2023 00:45 109491 dmsp_18_ephemeris_20201103.txt 22-Jun-2023 00:45 109478