../ dmsp_15_ephemeris_20170129.txt 22-Jun-2023 00:33 108024 dmsp_16_ephemeris_20170129.txt 22-Jun-2023 00:33 108054 dmsp_17_ephemeris_20170129.txt 22-Jun-2023 00:33 107908 dmsp_18_ephemeris_20170129.txt 22-Jun-2023 00:33 107940