../ dmsp_15_ephemeris_20190627.txt 22-Jun-2023 00:41 109518 dmsp_16_ephemeris_20190627.txt 22-Jun-2023 00:41 109476 dmsp_17_ephemeris_20190627.txt 22-Jun-2023 00:41 109572 dmsp_18_ephemeris_20190627.txt 22-Jun-2023 00:41 109503