../ dmsp_15_ephemeris_20130310.txt 22-Jun-2023 16:34 108136 dmsp_16_ephemeris_20130310.txt 22-Jun-2023 16:34 108109 dmsp_17_ephemeris_20130310.txt 22-Jun-2023 16:34 108117 dmsp_18_ephemeris_20130310.txt 22-Jun-2023 16:34 108117