../ dmsp_15_ephemeris_20140120.txt 22-Jun-2023 16:16 107977 dmsp_16_ephemeris_20140120.txt 22-Jun-2023 16:16 108041 dmsp_17_ephemeris_20140120.txt 22-Jun-2023 16:16 107913 dmsp_18_ephemeris_20140120.txt 22-Jun-2023 16:16 108040