../ dmsp_15_ephemeris_20150610.txt 22-Jun-2023 00:28 109511 dmsp_16_ephemeris_20150610.txt 22-Jun-2023 00:28 109618 dmsp_17_ephemeris_20150610.txt 22-Jun-2023 00:28 109639 dmsp_18_ephemeris_20150610.txt 22-Jun-2023 00:28 109708 dmsp_19_ephemeris_20150610.txt 22-Jun-2023 00:28 109688