../ dmsp_15_ephemeris_20140218.txt 22-Jun-2023 00:24 108155 dmsp_16_ephemeris_20140218.txt 22-Jun-2023 00:24 107912 dmsp_17_ephemeris_20140218.txt 22-Jun-2023 00:24 108022 dmsp_18_ephemeris_20140218.txt 22-Jun-2023 00:24 108024