../ dmsp_15_ephemeris_20130825.txt 22-Jun-2023 00:22 109489 dmsp_16_ephemeris_20130825.txt 22-Jun-2023 00:22 109678 dmsp_17_ephemeris_20130825.txt 22-Jun-2023 00:22 109878 dmsp_18_ephemeris_20130825.txt 22-Jun-2023 00:22 109836