../ dmsp_15_ephemeris_20191112.txt 22-Jun-2023 00:42 109412 dmsp_16_ephemeris_20191112.txt 22-Jun-2023 00:42 109454 dmsp_17_ephemeris_20191112.txt 22-Jun-2023 00:42 109443 dmsp_18_ephemeris_20191112.txt 22-Jun-2023 00:42 109375