../ dmsp_15_ephemeris_20150512.txt 22-Jun-2023 00:28 109390 dmsp_16_ephemeris_20150512.txt 22-Jun-2023 00:28 109610 dmsp_17_ephemeris_20150512.txt 22-Jun-2023 00:28 109677 dmsp_18_ephemeris_20150512.txt 22-Jun-2023 00:28 109537 dmsp_19_ephemeris_20150512.txt 22-Jun-2023 00:28 109669