../ dmsp_15_ephemeris_20140518.txt 22-Jun-2023 00:24 109600 dmsp_16_ephemeris_20140518.txt 22-Jun-2023 00:24 109612 dmsp_17_ephemeris_20140518.txt 22-Jun-2023 00:24 109579 dmsp_18_ephemeris_20140518.txt 22-Jun-2023 00:24 109690 dmsp_19_ephemeris_20140518.txt 22-Jun-2023 00:24 109630