../ dmsp_15_ephemeris_20230216.txt 22-Jun-2023 00:55 108195 dmsp_16_ephemeris_20230216.txt 22-Jun-2023 00:55 108095 dmsp_17_ephemeris_20230216.txt 22-Jun-2023 00:55 108108 dmsp_18_ephemeris_20230216.txt 22-Jun-2023 00:55 108029