../ dmsp_15_ephemeris_20120301.txt 22-Jun-2023 16:31 108043 dmsp_16_ephemeris_20120301.txt 22-Jun-2023 16:31 108127 dmsp_17_ephemeris_20120301.txt 22-Jun-2023 16:31 108219 dmsp_18_ephemeris_20120301.txt 22-Jun-2023 16:31 108130