../ dmsp_15_ephemeris_20131208.txt 22-Jun-2023 16:36 109446 dmsp_16_ephemeris_20131208.txt 22-Jun-2023 16:36 109288 dmsp_17_ephemeris_20131208.txt 22-Jun-2023 16:36 109300 dmsp_18_ephemeris_20131208.txt 22-Jun-2023 16:36 109390