../ dmsp_15_ephemeris_20150906.txt 22-Jun-2023 00:29 109607 dmsp_16_ephemeris_20150906.txt 22-Jun-2023 00:29 109699 dmsp_17_ephemeris_20150906.txt 22-Jun-2023 00:29 109667 dmsp_18_ephemeris_20150906.txt 22-Jun-2023 00:29 109722 dmsp_19_ephemeris_20150906.txt 22-Jun-2023 00:29 109679