../ dmsp_15_ephemeris_20201111.txt 22-Jun-2023 17:01 109552 dmsp_16_ephemeris_20201111.txt 22-Jun-2023 17:01 109516 dmsp_17_ephemeris_20201111.txt 22-Jun-2023 17:01 109304 dmsp_18_ephemeris_20201111.txt 22-Jun-2023 17:01 109439