../ dmsp_15_ephemeris_20110713.txt 22-Jun-2023 00:18 109587 dmsp_16_ephemeris_20110713.txt 22-Jun-2023 00:18 109563 dmsp_17_ephemeris_20110713.txt 22-Jun-2023 00:18 109595 dmsp_18_ephemeris_20110713.txt 22-Jun-2023 00:18 109625