../ dmsp_15_ephemeris_20201027.txt 22-Jun-2023 00:45 109545 dmsp_16_ephemeris_20201027.txt 22-Jun-2023 00:45 109588 dmsp_17_ephemeris_20201027.txt 22-Jun-2023 00:45 109415 dmsp_18_ephemeris_20201027.txt 22-Jun-2023 00:45 109595