../ dmsp_15_ephemeris_20150427.txt 22-Jun-2023 00:27 109644 dmsp_16_ephemeris_20150427.txt 22-Jun-2023 00:27 109590 dmsp_17_ephemeris_20150427.txt 22-Jun-2023 00:27 109728 dmsp_18_ephemeris_20150427.txt 22-Jun-2023 00:27 109584 dmsp_19_ephemeris_20150427.txt 22-Jun-2023 00:27 109715