../ dmsp_15_ephemeris_20150418.txt 22-Jun-2023 16:19 109550 dmsp_16_ephemeris_20150418.txt 22-Jun-2023 16:19 109645 dmsp_17_ephemeris_20150418.txt 22-Jun-2023 16:19 109719 dmsp_18_ephemeris_20150418.txt 22-Jun-2023 16:19 109648 dmsp_19_ephemeris_20150418.txt 22-Jun-2023 16:19 109760