../ dmsp_15_ephemeris_20110219.txt 22-Jun-2023 00:17 108086 dmsp_16_ephemeris_20110219.txt 22-Jun-2023 00:17 108102 dmsp_17_ephemeris_20110219.txt 22-Jun-2023 00:17 108058 dmsp_18_ephemeris_20110219.txt 22-Jun-2023 00:17 108101