../ dmsp_15_ephemeris_20170226.txt 22-Jun-2023 00:33 108164 dmsp_16_ephemeris_20170226.txt 22-Jun-2023 00:33 108144 dmsp_17_ephemeris_20170226.txt 22-Jun-2023 00:33 108103 dmsp_18_ephemeris_20170226.txt 22-Jun-2023 00:33 108101