../ dmsp_15_ephemeris_20180618.txt 22-Jun-2023 16:28 109446 dmsp_16_ephemeris_20180618.txt 22-Jun-2023 16:28 109515 dmsp_17_ephemeris_20180618.txt 22-Jun-2023 16:28 109640 dmsp_18_ephemeris_20180618.txt 22-Jun-2023 16:28 109622