../ dmsp_15_ephemeris_20140315.txt 22-Jun-2023 00:24 108273 dmsp_16_ephemeris_20140315.txt 22-Jun-2023 00:24 108123 dmsp_17_ephemeris_20140315.txt 22-Jun-2023 00:24 108305 dmsp_18_ephemeris_20140315.txt 22-Jun-2023 00:24 108125