../ dmsp_15_ephemeris_20130226.txt 22-Jun-2023 00:21 108073 dmsp_16_ephemeris_20130226.txt 22-Jun-2023 00:21 108127 dmsp_17_ephemeris_20130226.txt 22-Jun-2023 00:21 108124 dmsp_18_ephemeris_20130226.txt 22-Jun-2023 00:21 108085