../ dmsp_15_ephemeris_20120208.txt 22-Jun-2023 00:19 108095 dmsp_16_ephemeris_20120208.txt 22-Jun-2023 00:19 107938 dmsp_17_ephemeris_20120208.txt 22-Jun-2023 00:19 108013 dmsp_18_ephemeris_20120208.txt 22-Jun-2023 00:19 108046