../ dmsp_15_ephemeris_20200216.txt 22-Jun-2023 00:43 108098 dmsp_16_ephemeris_20200216.txt 22-Jun-2023 00:43 108079 dmsp_17_ephemeris_20200216.txt 22-Jun-2023 00:43 108065 dmsp_18_ephemeris_20200216.txt 22-Jun-2023 00:43 108137