../ dmsp_15_ephemeris_20161206.txt 22-Jun-2023 00:33 109435 dmsp_16_ephemeris_20161206.txt 22-Jun-2023 00:33 109316 dmsp_17_ephemeris_20161206.txt 22-Jun-2023 00:33 109325 dmsp_18_ephemeris_20161206.txt 22-Jun-2023 00:33 109283