../ dmsp_15_ephemeris_20171002.txt 22-Jun-2023 16:26 109482 dmsp_16_ephemeris_20171002.txt 22-Jun-2023 16:26 109511 dmsp_17_ephemeris_20171002.txt 22-Jun-2023 16:26 109713 dmsp_18_ephemeris_20171002.txt 22-Jun-2023 16:26 109622