../ dmsp_15_ephemeris_20151001.txt 22-Jun-2023 16:21 109618 dmsp_16_ephemeris_20151001.txt 22-Jun-2023 16:21 109513 dmsp_17_ephemeris_20151001.txt 22-Jun-2023 16:21 109564 dmsp_18_ephemeris_20151001.txt 22-Jun-2023 16:21 109643 dmsp_19_ephemeris_20151001.txt 22-Jun-2023 16:21 109611