../ dmsp_15_ephemeris_20170318.txt 22-Jun-2023 16:48 108203 dmsp_16_ephemeris_20170318.txt 22-Jun-2023 16:48 108149 dmsp_17_ephemeris_20170318.txt 22-Jun-2023 16:48 108180 dmsp_18_ephemeris_20170318.txt 22-Jun-2023 16:48 108186