../ dmsp_15_ephemeris_20130313.txt 22-Jun-2023 16:34 108128 dmsp_16_ephemeris_20130313.txt 22-Jun-2023 16:34 108064 dmsp_17_ephemeris_20130313.txt 22-Jun-2023 16:34 108228 dmsp_18_ephemeris_20130313.txt 22-Jun-2023 16:34 108188