../ dmsp_15_ephemeris_20131024.txt 22-Jun-2023 00:23 109641 dmsp_16_ephemeris_20131024.txt 22-Jun-2023 00:23 109459 dmsp_17_ephemeris_20131024.txt 22-Jun-2023 00:23 109526 dmsp_18_ephemeris_20131024.txt 22-Jun-2023 00:23 109562