../ dmsp_15_ephemeris_20170212.txt 22-Jun-2023 16:48 108144 dmsp_16_ephemeris_20170212.txt 22-Jun-2023 16:48 108128 dmsp_17_ephemeris_20170212.txt 22-Jun-2023 16:48 108083 dmsp_18_ephemeris_20170212.txt 22-Jun-2023 16:48 107962