../ dmsp_15_ephemeris_20120216.txt 22-Jun-2023 16:31 108133 dmsp_16_ephemeris_20120216.txt 22-Jun-2023 16:31 108001 dmsp_17_ephemeris_20120216.txt 22-Jun-2023 16:31 108076 dmsp_18_ephemeris_20120216.txt 22-Jun-2023 16:31 108060