../ dmsp_15_ephemeris_20120410.txt 22-Jun-2023 16:13 109560 dmsp_16_ephemeris_20120410.txt 22-Jun-2023 16:13 109762 dmsp_17_ephemeris_20120410.txt 22-Jun-2023 16:13 109747 dmsp_18_ephemeris_20120410.txt 22-Jun-2023 16:13 109583