../ dmsp_15_ephemeris_20230316.txt 22-Jun-2023 00:55 108166 dmsp_16_ephemeris_20230316.txt 22-Jun-2023 00:55 108152 dmsp_17_ephemeris_20230316.txt 22-Jun-2023 00:55 108161 dmsp_18_ephemeris_20230316.txt 22-Jun-2023 00:55 108245