../ dmsp_15_ephemeris_20130606.txt 22-Jun-2023 00:22 109502 dmsp_16_ephemeris_20130606.txt 22-Jun-2023 00:22 109560 dmsp_17_ephemeris_20130606.txt 22-Jun-2023 00:22 109667 dmsp_18_ephemeris_20130606.txt 22-Jun-2023 00:22 109708