../ dmsp_15_ephemeris_20200607.txt 22-Jun-2023 16:33 109527 dmsp_16_ephemeris_20200607.txt 22-Jun-2023 16:33 109552 dmsp_17_ephemeris_20200607.txt 22-Jun-2023 16:33 109550 dmsp_18_ephemeris_20200607.txt 22-Jun-2023 16:33 109495