../ dmsp_15_ephemeris_20191019.txt 22-Jun-2023 00:42 109605 dmsp_16_ephemeris_20191019.txt 22-Jun-2023 00:42 109590 dmsp_17_ephemeris_20191019.txt 22-Jun-2023 00:42 109483 dmsp_18_ephemeris_20191019.txt 22-Jun-2023 00:42 109486