../ dmsp_15_ephemeris_20190218.txt 22-Jun-2023 00:39 108119 dmsp_16_ephemeris_20190218.txt 22-Jun-2023 00:39 108177 dmsp_17_ephemeris_20190218.txt 22-Jun-2023 00:39 108115 dmsp_18_ephemeris_20190218.txt 22-Jun-2023 00:39 107970