../ dmsp_15_ephemeris_20120722.txt 22-Jun-2023 00:20 109591 dmsp_16_ephemeris_20120722.txt 22-Jun-2023 00:20 109628 dmsp_17_ephemeris_20120722.txt 22-Jun-2023 00:20 109685 dmsp_18_ephemeris_20120722.txt 22-Jun-2023 00:20 109637