../ dmsp_15_ephemeris_20131127.txt 22-Jun-2023 00:23 109478 dmsp_16_ephemeris_20131127.txt 22-Jun-2023 00:23 109362 dmsp_17_ephemeris_20131127.txt 22-Jun-2023 00:23 109416 dmsp_18_ephemeris_20131127.txt 22-Jun-2023 00:23 109399