../ dmsp_15_ephemeris_20200808.txt 22-Jun-2023 00:44 109678 dmsp_16_ephemeris_20200808.txt 22-Jun-2023 00:44 109575 dmsp_17_ephemeris_20200808.txt 22-Jun-2023 00:44 109666 dmsp_18_ephemeris_20200808.txt 22-Jun-2023 00:44 109579