../ dmsp_15_ephemeris_20150813.txt 22-Jun-2023 16:20 109593 dmsp_16_ephemeris_20150813.txt 22-Jun-2023 16:20 109645 dmsp_17_ephemeris_20150813.txt 22-Jun-2023 16:20 109780 dmsp_18_ephemeris_20150813.txt 22-Jun-2023 16:20 109641 dmsp_19_ephemeris_20150813.txt 22-Jun-2023 16:20 109653