../ dmsp_15_ephemeris_20140123.txt 22-Jun-2023 16:16 108062 dmsp_16_ephemeris_20140123.txt 22-Jun-2023 16:16 107856 dmsp_17_ephemeris_20140123.txt 22-Jun-2023 16:16 108007 dmsp_18_ephemeris_20140123.txt 22-Jun-2023 16:16 107963