../ dmsp_15_ephemeris_20130706.txt 22-Jun-2023 16:35 109497 dmsp_16_ephemeris_20130706.txt 22-Jun-2023 16:35 109561 dmsp_17_ephemeris_20130706.txt 22-Jun-2023 16:35 109560 dmsp_18_ephemeris_20130706.txt 22-Jun-2023 16:35 109543