../ dmsp_15_ephemeris_20140301.txt 22-Jun-2023 00:24 108064 dmsp_16_ephemeris_20140301.txt 22-Jun-2023 00:24 108164 dmsp_17_ephemeris_20140301.txt 22-Jun-2023 00:24 108228 dmsp_18_ephemeris_20140301.txt 22-Jun-2023 00:24 108126