../ dmsp_15_ephemeris_20221201.txt 22-Jun-2023 00:54 109390 dmsp_16_ephemeris_20221201.txt 22-Jun-2023 00:54 109359 dmsp_17_ephemeris_20221201.txt 22-Jun-2023 00:54 109270 dmsp_18_ephemeris_20221201.txt 22-Jun-2023 00:54 109421