../ dmsp_15_ephemeris_20120218.txt 22-Jun-2023 00:19 108044 dmsp_16_ephemeris_20120218.txt 22-Jun-2023 00:19 108032 dmsp_17_ephemeris_20120218.txt 22-Jun-2023 00:19 108006 dmsp_18_ephemeris_20120218.txt 22-Jun-2023 00:19 108135