../ dmsp_15_ephemeris_20120415.txt 22-Jun-2023 00:19 109620 dmsp_16_ephemeris_20120415.txt 22-Jun-2023 00:19 109662 dmsp_17_ephemeris_20120415.txt 22-Jun-2023 00:19 109779 dmsp_18_ephemeris_20120415.txt 22-Jun-2023 00:19 109664