../ dmsp_15_ephemeris_20201013.txt 22-Jun-2023 00:45 109625 dmsp_16_ephemeris_20201013.txt 22-Jun-2023 00:45 109580 dmsp_17_ephemeris_20201013.txt 22-Jun-2023 00:45 109449 dmsp_18_ephemeris_20201013.txt 22-Jun-2023 00:45 109550