../ dmsp_15_ephemeris_20200212.txt 22-Jun-2023 00:43 108104 dmsp_16_ephemeris_20200212.txt 22-Jun-2023 00:43 108154 dmsp_17_ephemeris_20200212.txt 22-Jun-2023 00:43 108106 dmsp_18_ephemeris_20200212.txt 22-Jun-2023 00:43 108089