../ dmsp_15_ephemeris_20200223.txt 22-Jun-2023 00:43 108180 dmsp_16_ephemeris_20200223.txt 22-Jun-2023 00:43 108199 dmsp_17_ephemeris_20200223.txt 22-Jun-2023 00:43 108098 dmsp_18_ephemeris_20200223.txt 22-Jun-2023 00:43 108055