../ dmsp_15_ephemeris_20191223.txt 22-Jun-2023 00:42 109381 dmsp_16_ephemeris_20191223.txt 22-Jun-2023 00:42 109405 dmsp_17_ephemeris_20191223.txt 22-Jun-2023 00:42 109297 dmsp_18_ephemeris_20191223.txt 22-Jun-2023 00:42 109245