../ dmsp_15_ephemeris_20200203.txt 22-Jun-2023 00:43 108231 dmsp_16_ephemeris_20200203.txt 22-Jun-2023 00:43 108071 dmsp_17_ephemeris_20200203.txt 22-Jun-2023 00:43 108053 dmsp_18_ephemeris_20200203.txt 22-Jun-2023 00:43 107975