../ dmsp_15_ephemeris_20170122.txt 22-Jun-2023 00:33 107940 dmsp_16_ephemeris_20170122.txt 22-Jun-2023 00:33 108044 dmsp_17_ephemeris_20170122.txt 22-Jun-2023 00:33 107912 dmsp_18_ephemeris_20170122.txt 22-Jun-2023 00:33 107923