../ dmsp_15_ephemeris_20180107.txt 22-Jun-2023 16:51 106583 dmsp_16_ephemeris_20180107.txt 22-Jun-2023 16:51 106481 dmsp_17_ephemeris_20180107.txt 22-Jun-2023 16:51 106492 dmsp_18_ephemeris_20180107.txt 22-Jun-2023 16:51 106522