../ dmsp_15_ephemeris_20201113.txt 22-Jun-2023 00:45 109452 dmsp_16_ephemeris_20201113.txt 22-Jun-2023 00:45 109443 dmsp_17_ephemeris_20201113.txt 22-Jun-2023 00:45 109375 dmsp_18_ephemeris_20201113.txt 22-Jun-2023 00:45 109448