../ dmsp_15_ephemeris_20160426.txt 22-Jun-2023 00:31 109518 dmsp_16_ephemeris_20160426.txt 22-Jun-2023 00:31 109493 dmsp_17_ephemeris_20160426.txt 22-Jun-2023 00:31 109783 dmsp_18_ephemeris_20160426.txt 22-Jun-2023 00:31 109729 dmsp_19_ephemeris_20160426.txt 22-Jun-2023 00:31 109699