../ dmsp_15_ephemeris_20150516.txt 22-Jun-2023 00:28 109506 dmsp_16_ephemeris_20150516.txt 22-Jun-2023 00:28 109530 dmsp_17_ephemeris_20150516.txt 22-Jun-2023 00:28 109550 dmsp_18_ephemeris_20150516.txt 22-Jun-2023 00:28 109813 dmsp_19_ephemeris_20150516.txt 22-Jun-2023 00:28 109624