../ dmsp_15_ephemeris_20130416.txt 22-Jun-2023 00:22 109612 dmsp_16_ephemeris_20130416.txt 22-Jun-2023 00:22 109699 dmsp_17_ephemeris_20130416.txt 22-Jun-2023 00:22 109741 dmsp_18_ephemeris_20130416.txt 22-Jun-2023 00:22 109680