../ dmsp_15_ephemeris_20120214.txt 22-Jun-2023 00:19 108092 dmsp_16_ephemeris_20120214.txt 22-Jun-2023 00:19 108068 dmsp_17_ephemeris_20120214.txt 22-Jun-2023 00:19 108178 dmsp_18_ephemeris_20120214.txt 22-Jun-2023 00:19 108068