../ dmsp_15_ephemeris_20120313.txt 22-Jun-2023 00:19 108113 dmsp_16_ephemeris_20120313.txt 22-Jun-2023 00:19 108045 dmsp_17_ephemeris_20120313.txt 22-Jun-2023 00:19 108238 dmsp_18_ephemeris_20120313.txt 22-Jun-2023 00:19 108246