../ dmsp_15_ephemeris_20130710.txt 22-Jun-2023 00:22 109441 dmsp_16_ephemeris_20130710.txt 22-Jun-2023 00:22 109609 dmsp_17_ephemeris_20130710.txt 22-Jun-2023 00:22 109678 dmsp_18_ephemeris_20130710.txt 22-Jun-2023 00:22 109565