../ dmsp_15_ephemeris_20130428.txt 22-Jun-2023 16:34 109625 dmsp_16_ephemeris_20130428.txt 22-Jun-2023 16:34 109614 dmsp_17_ephemeris_20130428.txt 22-Jun-2023 16:34 109743 dmsp_18_ephemeris_20130428.txt 22-Jun-2023 16:34 109558