../ dmsp_15_ephemeris_20171111.txt 22-Jun-2023 16:50 109515 dmsp_16_ephemeris_20171111.txt 22-Jun-2023 16:50 109427 dmsp_17_ephemeris_20171111.txt 22-Jun-2023 16:50 109401 dmsp_18_ephemeris_20171111.txt 22-Jun-2023 16:50 109475