../ dmsp_15_ephemeris_20150920.txt 22-Jun-2023 16:16 109704 dmsp_16_ephemeris_20150920.txt 22-Jun-2023 16:16 109727 dmsp_17_ephemeris_20150920.txt 22-Jun-2023 16:16 109605 dmsp_18_ephemeris_20150920.txt 22-Jun-2023 16:16 109622 dmsp_19_ephemeris_20150920.txt 22-Jun-2023 16:16 109720