../ dmsp_15_ephemeris_20150712.txt 22-Jun-2023 00:28 109502 dmsp_16_ephemeris_20150712.txt 22-Jun-2023 00:28 109515 dmsp_17_ephemeris_20150712.txt 22-Jun-2023 00:28 109556 dmsp_18_ephemeris_20150712.txt 22-Jun-2023 00:28 109678 dmsp_19_ephemeris_20150712.txt 22-Jun-2023 00:28 109609