../ dmsp_15_ephemeris_20161219.txt 22-Jun-2023 16:24 109508 dmsp_16_ephemeris_20161219.txt 22-Jun-2023 16:24 109359 dmsp_17_ephemeris_20161219.txt 22-Jun-2023 16:24 109390 dmsp_18_ephemeris_20161219.txt 22-Jun-2023 16:24 109291