../ dmsp_15_ephemeris_20140323.txt 22-Jun-2023 00:24 108195 dmsp_16_ephemeris_20140323.txt 22-Jun-2023 00:24 108227 dmsp_17_ephemeris_20140323.txt 22-Jun-2023 00:24 108292 dmsp_18_ephemeris_20140323.txt 22-Jun-2023 00:24 108246