../ dmsp_15_ephemeris_20160401.txt 22-Jun-2023 00:30 108186 dmsp_16_ephemeris_20160401.txt 22-Jun-2023 00:30 108270 dmsp_17_ephemeris_20160401.txt 22-Jun-2023 00:30 108213 dmsp_18_ephemeris_20160401.txt 22-Jun-2023 00:30 108243 dmsp_19_ephemeris_20160401.txt 22-Jun-2023 00:30 108177