../ dmsp_15_ephemeris_20150724.txt 22-Jun-2023 00:28 109573 dmsp_16_ephemeris_20150724.txt 22-Jun-2023 00:28 109475 dmsp_17_ephemeris_20150724.txt 22-Jun-2023 00:28 109513 dmsp_18_ephemeris_20150724.txt 22-Jun-2023 00:28 109693 dmsp_19_ephemeris_20150724.txt 22-Jun-2023 00:28 109474