../ dmsp_15_ephemeris_20130110.txt 22-Jun-2023 00:21 107859 dmsp_16_ephemeris_20130110.txt 22-Jun-2023 00:21 107876 dmsp_17_ephemeris_20130110.txt 22-Jun-2023 00:21 107946 dmsp_18_ephemeris_20130110.txt 22-Jun-2023 00:21 107812