../ dmsp_15_ephemeris_20200128.txt 22-Jun-2023 00:43 108055 dmsp_16_ephemeris_20200128.txt 22-Jun-2023 00:43 107992 dmsp_17_ephemeris_20200128.txt 22-Jun-2023 00:43 107909 dmsp_18_ephemeris_20200128.txt 22-Jun-2023 00:43 107986