../ dmsp_15_ephemeris_20221204.txt 22-Jun-2023 00:54 109337 dmsp_16_ephemeris_20221204.txt 22-Jun-2023 00:54 109300 dmsp_17_ephemeris_20221204.txt 22-Jun-2023 00:54 109256 dmsp_18_ephemeris_20221204.txt 22-Jun-2023 00:54 109369