../ dmsp_15_ephemeris_20171115.txt 22-Jun-2023 00:35 109374 dmsp_16_ephemeris_20171115.txt 22-Jun-2023 00:35 109376 dmsp_17_ephemeris_20171115.txt 22-Jun-2023 00:35 109476 dmsp_18_ephemeris_20171115.txt 22-Jun-2023 00:35 109359