../ dmsp_15_ephemeris_20221207.txt 22-Jun-2023 00:54 109377 dmsp_16_ephemeris_20221207.txt 22-Jun-2023 00:54 109446 dmsp_17_ephemeris_20221207.txt 22-Jun-2023 00:54 109313 dmsp_18_ephemeris_20221207.txt 22-Jun-2023 00:54 109249