../ dmsp_15_ephemeris_20190222.txt 22-Jun-2023 00:39 108125 dmsp_16_ephemeris_20190222.txt 22-Jun-2023 00:39 108130 dmsp_17_ephemeris_20190222.txt 22-Jun-2023 00:39 108087 dmsp_18_ephemeris_20190222.txt 22-Jun-2023 00:39 108085