../ dmsp_15_ephemeris_20161211.txt 22-Jun-2023 00:33 109399 dmsp_16_ephemeris_20161211.txt 22-Jun-2023 00:33 109415 dmsp_17_ephemeris_20161211.txt 22-Jun-2023 00:33 109236 dmsp_18_ephemeris_20161211.txt 22-Jun-2023 00:33 109337