../ dmsp_15_ephemeris_20131014.txt 22-Jun-2023 00:23 109519 dmsp_16_ephemeris_20131014.txt 22-Jun-2023 00:23 109526 dmsp_17_ephemeris_20131014.txt 22-Jun-2023 00:23 109575 dmsp_18_ephemeris_20131014.txt 22-Jun-2023 00:23 109596