../ dmsp_15_ephemeris_20150227.txt 22-Jun-2023 00:27 108108 dmsp_16_ephemeris_20150227.txt 22-Jun-2023 00:27 108073 dmsp_17_ephemeris_20150227.txt 22-Jun-2023 00:27 108108 dmsp_18_ephemeris_20150227.txt 22-Jun-2023 00:27 108067 dmsp_19_ephemeris_20150227.txt 22-Jun-2023 00:27 108118