../ dmsp_15_ephemeris_20220313.txt 22-Jun-2023 16:31 108213 dmsp_16_ephemeris_20220313.txt 22-Jun-2023 16:31 108137 dmsp_17_ephemeris_20220313.txt 22-Jun-2023 16:31 108060 dmsp_18_ephemeris_20220313.txt 22-Jun-2023 16:31 108139