../ dmsp_15_ephemeris_20130320.txt 22-Jun-2023 16:11 108130 dmsp_16_ephemeris_20130320.txt 22-Jun-2023 16:11 108257 dmsp_17_ephemeris_20130320.txt 22-Jun-2023 16:11 108175 dmsp_18_ephemeris_20130320.txt 22-Jun-2023 16:11 108225