../ dmsp_15_ephemeris_20230319.txt 22-Jun-2023 16:42 108330 dmsp_16_ephemeris_20230319.txt 22-Jun-2023 16:42 108139 dmsp_17_ephemeris_20230319.txt 22-Jun-2023 16:42 108171 dmsp_18_ephemeris_20230319.txt 22-Jun-2023 16:42 108236