../ dmsp_15_ephemeris_20150319.txt 22-Jun-2023 16:15 108115 dmsp_16_ephemeris_20150319.txt 22-Jun-2023 16:15 108309 dmsp_17_ephemeris_20150319.txt 22-Jun-2023 16:15 108188 dmsp_18_ephemeris_20150319.txt 22-Jun-2023 16:15 108193 dmsp_19_ephemeris_20150319.txt 22-Jun-2023 16:15 108271