../ dmsp_15_ephemeris_20230330.txt 22-Jun-2023 00:55 108149 dmsp_16_ephemeris_20230330.txt 22-Jun-2023 00:55 108207 dmsp_17_ephemeris_20230330.txt 22-Jun-2023 00:55 108111 dmsp_18_ephemeris_20230330.txt 22-Jun-2023 00:55 108249