../ dmsp_15_ephemeris_20150901.txt 22-Jun-2023 00:29 109639 dmsp_16_ephemeris_20150901.txt 22-Jun-2023 00:29 109605 dmsp_17_ephemeris_20150901.txt 22-Jun-2023 00:29 109746 dmsp_18_ephemeris_20150901.txt 22-Jun-2023 00:29 109560 dmsp_19_ephemeris_20150901.txt 22-Jun-2023 00:29 109829