../ dmsp_15_ephemeris_20130114.txt 22-Jun-2023 00:21 108062 dmsp_16_ephemeris_20130114.txt 22-Jun-2023 00:21 107841 dmsp_17_ephemeris_20130114.txt 22-Jun-2023 00:21 107998 dmsp_18_ephemeris_20130114.txt 22-Jun-2023 00:21 107902