../ dmsp_15_ephemeris_20130218.txt 22-Jun-2023 16:34 108112 dmsp_16_ephemeris_20130218.txt 22-Jun-2023 16:34 108051 dmsp_17_ephemeris_20130218.txt 22-Jun-2023 16:34 108249 dmsp_18_ephemeris_20130218.txt 22-Jun-2023 16:34 108169