../ dmsp_15_ephemeris_20220124.txt 22-Jun-2023 00:49 108077 dmsp_16_ephemeris_20220124.txt 22-Jun-2023 00:49 107848 dmsp_17_ephemeris_20220124.txt 22-Jun-2023 00:49 108046 dmsp_18_ephemeris_20220124.txt 22-Jun-2023 00:49 108072