../ dmsp_15_ephemeris_20170308.txt 22-Jun-2023 16:25 108215 dmsp_16_ephemeris_20170308.txt 22-Jun-2023 16:25 108106 dmsp_17_ephemeris_20170308.txt 22-Jun-2023 16:25 108180 dmsp_18_ephemeris_20170308.txt 22-Jun-2023 16:25 108135