../ dmsp_15_ephemeris_20200226.txt 22-Jun-2023 00:43 108170 dmsp_16_ephemeris_20200226.txt 22-Jun-2023 00:43 108217 dmsp_17_ephemeris_20200226.txt 22-Jun-2023 00:43 108119 dmsp_18_ephemeris_20200226.txt 22-Jun-2023 00:43 107953