../ dmsp_15_ephemeris_20170208.txt 22-Jun-2023 00:33 108020 dmsp_16_ephemeris_20170208.txt 22-Jun-2023 00:33 108094 dmsp_17_ephemeris_20170208.txt 22-Jun-2023 00:33 107984 dmsp_18_ephemeris_20170208.txt 22-Jun-2023 00:33 107908