../ dmsp_15_ephemeris_20131215.txt 22-Jun-2023 16:36 109369 dmsp_16_ephemeris_20131215.txt 22-Jun-2023 16:36 109330 dmsp_17_ephemeris_20131215.txt 22-Jun-2023 16:36 109391 dmsp_18_ephemeris_20131215.txt 22-Jun-2023 16:36 109440