../ dmsp_15_ephemeris_20151120.txt 22-Jun-2023 16:21 109513 dmsp_16_ephemeris_20151120.txt 22-Jun-2023 16:21 109442 dmsp_17_ephemeris_20151120.txt 22-Jun-2023 16:21 109502 dmsp_18_ephemeris_20151120.txt 22-Jun-2023 16:21 109324 dmsp_19_ephemeris_20151120.txt 22-Jun-2023 16:21 109440