../ dmsp_15_ephemeris_20130910.txt 22-Jun-2023 00:23 109659 dmsp_16_ephemeris_20130910.txt 22-Jun-2023 00:23 109697 dmsp_17_ephemeris_20130910.txt 22-Jun-2023 00:23 109723 dmsp_18_ephemeris_20130910.txt 22-Jun-2023 00:23 109726