../ dmsp_15_ephemeris_20130709.txt 22-Jun-2023 00:22 109533 dmsp_16_ephemeris_20130709.txt 22-Jun-2023 00:22 109489 dmsp_17_ephemeris_20130709.txt 22-Jun-2023 00:22 109713 dmsp_18_ephemeris_20130709.txt 22-Jun-2023 00:22 109618