../ dmsp_15_ephemeris_20210328.txt 22-Jun-2023 16:35 108189 dmsp_16_ephemeris_20210328.txt 22-Jun-2023 16:35 108165 dmsp_17_ephemeris_20210328.txt 22-Jun-2023 16:35 108115 dmsp_18_ephemeris_20210328.txt 22-Jun-2023 16:35 108241