../ dmsp_15_ephemeris_20110124.txt 22-Jun-2023 00:17 107956 dmsp_16_ephemeris_20110124.txt 22-Jun-2023 00:17 107957 dmsp_17_ephemeris_20110124.txt 22-Jun-2023 00:17 108039 dmsp_18_ephemeris_20110124.txt 22-Jun-2023 00:17 108001