../ dmsp_15_ephemeris_20110627.txt 22-Jun-2023 00:17 109653 dmsp_16_ephemeris_20110627.txt 22-Jun-2023 00:17 109768 dmsp_17_ephemeris_20110627.txt 22-Jun-2023 00:17 109620 dmsp_18_ephemeris_20110627.txt 22-Jun-2023 00:17 109614