../ dmsp_15_ephemeris_20150919.txt 22-Jun-2023 00:29 109612 dmsp_16_ephemeris_20150919.txt 22-Jun-2023 00:29 109601 dmsp_17_ephemeris_20150919.txt 22-Jun-2023 00:29 109643 dmsp_18_ephemeris_20150919.txt 22-Jun-2023 00:29 109619 dmsp_19_ephemeris_20150919.txt 22-Jun-2023 00:29 109515