../ dmsp_15_ephemeris_20150519.txt 22-Jun-2023 16:16 109442 dmsp_16_ephemeris_20150519.txt 22-Jun-2023 16:16 109531 dmsp_17_ephemeris_20150519.txt 22-Jun-2023 16:16 109621 dmsp_18_ephemeris_20150519.txt 22-Jun-2023 16:16 109680 dmsp_19_ephemeris_20150519.txt 22-Jun-2023 16:16 109689