../ dmsp_15_ephemeris_20180328.txt 22-Jun-2023 16:27 108113 dmsp_16_ephemeris_20180328.txt 22-Jun-2023 16:27 108164 dmsp_17_ephemeris_20180328.txt 22-Jun-2023 16:27 108189 dmsp_18_ephemeris_20180328.txt 22-Jun-2023 16:27 108093