../ dmsp_15_ephemeris_20200627.txt 22-Jun-2023 00:44 109502 dmsp_16_ephemeris_20200627.txt 22-Jun-2023 00:44 109440 dmsp_17_ephemeris_20200627.txt 22-Jun-2023 00:44 109578 dmsp_18_ephemeris_20200627.txt 22-Jun-2023 00:44 109513