../ dmsp_15_ephemeris_20181005.txt 22-Jun-2023 16:54 109619 dmsp_16_ephemeris_20181005.txt 22-Jun-2023 16:54 109611 dmsp_17_ephemeris_20181005.txt 22-Jun-2023 16:54 109510 dmsp_18_ephemeris_20181005.txt 22-Jun-2023 16:54 109565