../ dmsp_15_ephemeris_20190127.txt 22-Jun-2023 00:39 107923 dmsp_16_ephemeris_20190127.txt 22-Jun-2023 00:39 107983 dmsp_17_ephemeris_20190127.txt 22-Jun-2023 00:39 107897 dmsp_18_ephemeris_20190127.txt 22-Jun-2023 00:39 107932