../ dmsp_15_ephemeris_20120710.txt 22-Jun-2023 00:20 109562 dmsp_16_ephemeris_20120710.txt 22-Jun-2023 00:20 109640 dmsp_17_ephemeris_20120710.txt 22-Jun-2023 00:20 109660 dmsp_18_ephemeris_20120710.txt 22-Jun-2023 00:20 109619