../ dmsp_15_ephemeris_20131012.txt 22-Jun-2023 00:23 109557 dmsp_16_ephemeris_20131012.txt 22-Jun-2023 00:23 109610 dmsp_17_ephemeris_20131012.txt 22-Jun-2023 00:23 109703 dmsp_18_ephemeris_20131012.txt 22-Jun-2023 00:23 109563