../ dmsp_15_ephemeris_20230202.txt 22-Jun-2023 00:54 108015 dmsp_16_ephemeris_20230202.txt 22-Jun-2023 00:54 108172 dmsp_17_ephemeris_20230202.txt 22-Jun-2023 00:54 107970 dmsp_18_ephemeris_20230202.txt 22-Jun-2023 00:54 108022