../ dmsp_15_ephemeris_20171113.txt 22-Jun-2023 16:27 109534 dmsp_16_ephemeris_20171113.txt 22-Jun-2023 16:27 109379 dmsp_17_ephemeris_20171113.txt 22-Jun-2023 16:27 109399 dmsp_18_ephemeris_20171113.txt 22-Jun-2023 16:27 109322