../ dmsp_15_ephemeris_20210115.txt 22-Jun-2023 00:46 107903 dmsp_16_ephemeris_20210115.txt 22-Jun-2023 00:46 108024 dmsp_17_ephemeris_20210115.txt 22-Jun-2023 00:46 107684 dmsp_18_ephemeris_20210115.txt 22-Jun-2023 00:46 107933