../ dmsp_15_ephemeris_20170213.txt 22-Jun-2023 16:25 108083 dmsp_16_ephemeris_20170213.txt 22-Jun-2023 16:25 108055 dmsp_17_ephemeris_20170213.txt 22-Jun-2023 16:25 107938 dmsp_18_ephemeris_20170213.txt 22-Jun-2023 16:25 108099