../ dmsp_15_ephemeris_20130129.txt 22-Jun-2023 00:21 108162 dmsp_16_ephemeris_20130129.txt 22-Jun-2023 00:21 107793 dmsp_17_ephemeris_20130129.txt 22-Jun-2023 00:21 107992 dmsp_18_ephemeris_20130129.txt 22-Jun-2023 00:21 108015