../ dmsp_15_ephemeris_20201006.txt 22-Jun-2023 17:00 109585 dmsp_16_ephemeris_20201006.txt 22-Jun-2023 17:00 109521 dmsp_17_ephemeris_20201006.txt 22-Jun-2023 17:00 109633 dmsp_18_ephemeris_20201006.txt 22-Jun-2023 17:00 109595