../ dmsp_15_ephemeris_20130807.txt 22-Jun-2023 00:22 109590 dmsp_16_ephemeris_20130807.txt 22-Jun-2023 00:22 109568 dmsp_17_ephemeris_20130807.txt 22-Jun-2023 00:22 109720 dmsp_18_ephemeris_20130807.txt 22-Jun-2023 00:22 109619