../ dmsp_15_ephemeris_20220105.txt 22-Jun-2023 00:49 106571 dmsp_16_ephemeris_20220105.txt 22-Jun-2023 00:49 106520 dmsp_17_ephemeris_20220105.txt 22-Jun-2023 00:49 106390 dmsp_18_ephemeris_20220105.txt 22-Jun-2023 00:49 106421