../ dmsp_15_ephemeris_20120326.txt 22-Jun-2023 00:19 108202 dmsp_16_ephemeris_20120326.txt 22-Jun-2023 00:19 108194 dmsp_17_ephemeris_20120326.txt 22-Jun-2023 00:19 108315 dmsp_18_ephemeris_20120326.txt 22-Jun-2023 00:19 108332