../ dmsp_15_ephemeris_20221117.txt 22-Jun-2023 16:40 109338 dmsp_16_ephemeris_20221117.txt 22-Jun-2023 16:40 109379 dmsp_17_ephemeris_20221117.txt 22-Jun-2023 16:40 109375 dmsp_18_ephemeris_20221117.txt 22-Jun-2023 16:40 109406