../ dmsp_15_ephemeris_20110610.txt 22-Jun-2023 00:17 109499 dmsp_16_ephemeris_20110610.txt 22-Jun-2023 00:17 109539 dmsp_17_ephemeris_20110610.txt 22-Jun-2023 00:17 109593 dmsp_18_ephemeris_20110610.txt 22-Jun-2023 00:17 109563