../ dmsp_15_ephemeris_20220129.txt 22-Jun-2023 00:49 108081 dmsp_16_ephemeris_20220129.txt 22-Jun-2023 00:49 107956 dmsp_17_ephemeris_20220129.txt 22-Jun-2023 00:49 107940 dmsp_18_ephemeris_20220129.txt 22-Jun-2023 00:49 108050