../ dmsp_15_ephemeris_20150730.txt 22-Jun-2023 00:28 109461 dmsp_16_ephemeris_20150730.txt 22-Jun-2023 00:28 109604 dmsp_17_ephemeris_20150730.txt 22-Jun-2023 00:28 109708 dmsp_18_ephemeris_20150730.txt 22-Jun-2023 00:28 109531 dmsp_19_ephemeris_20150730.txt 22-Jun-2023 00:28 109546