../ dmsp_15_ephemeris_20130214.txt 22-Jun-2023 00:21 108032 dmsp_16_ephemeris_20130214.txt 22-Jun-2023 00:21 107912 dmsp_17_ephemeris_20130214.txt 22-Jun-2023 00:21 108172 dmsp_18_ephemeris_20130214.txt 22-Jun-2023 00:21 108134