../ dmsp_15_ephemeris_20190213.txt 22-Jun-2023 00:39 108077 dmsp_16_ephemeris_20190213.txt 22-Jun-2023 00:39 108209 dmsp_17_ephemeris_20190213.txt 22-Jun-2023 00:39 108031 dmsp_18_ephemeris_20190213.txt 22-Jun-2023 00:39 108040