../ dmsp_15_ephemeris_20170118.txt 22-Jun-2023 00:33 108079 dmsp_16_ephemeris_20170118.txt 22-Jun-2023 00:33 108079 dmsp_17_ephemeris_20170118.txt 22-Jun-2023 00:33 107815 dmsp_18_ephemeris_20170118.txt 22-Jun-2023 00:33 107833