../ dmsp_15_ephemeris_20140307.txt 22-Jun-2023 00:24 108143 dmsp_16_ephemeris_20140307.txt 22-Jun-2023 00:24 108156 dmsp_17_ephemeris_20140307.txt 22-Jun-2023 00:24 108094 dmsp_18_ephemeris_20140307.txt 22-Jun-2023 00:24 108111