../ dmsp_15_ephemeris_20120715.txt 22-Jun-2023 16:32 109409 dmsp_16_ephemeris_20120715.txt 22-Jun-2023 16:32 109612 dmsp_17_ephemeris_20120715.txt 22-Jun-2023 16:32 109593 dmsp_18_ephemeris_20120715.txt 22-Jun-2023 16:32 109532