../ dmsp_15_ephemeris_20200303.txt 22-Jun-2023 00:43 108142 dmsp_16_ephemeris_20200303.txt 22-Jun-2023 00:43 108047 dmsp_17_ephemeris_20200303.txt 22-Jun-2023 00:43 108044 dmsp_18_ephemeris_20200303.txt 22-Jun-2023 00:43 108047